Tools & Hardware

AAK, as a manufacturer of producing hydraulic valves, has been doing ODM hydraulic valves for 10 years for 3 of the world's top 500 in the industry. In the years of labeling these big brand hydraulic valves, the overall quality of the factory has improved significantly. The operation of each workshop is standardized, the quality control process of hydraulic valves is strict, and the self-implementation is more strict than the ISO certification system, being meticulous in making hydraulic valves. All of these are valuable assets for big brand ODMs.   In cooperation with these big brand hydraulic valves, AAK has formed a strict process flow, because of them, there is the growth of AAK hydraulic valves. The strength of the factory has improved, and it is natural for the market to respond. I still remember that 10 years ago, I participated in the Ningbo hydraulic valve industry seminar. An old engineer said at the meeting: "It is easier for factories to succeed in making more difficult hydraulic valves". This seems to be in line with our traditional experience: No cross, no crown. That sounds right, but it's not true. Because there is also a contrary saying called "follow the trend". If a hydraulic valve manufacturer does the right thing, it is not only easy to succeed, but also not difficult. The experience of AAK hydraulic valves over the years is the same. If some styles of hydraulic valves are easy to do, you do not feel particularly difficult and can get help everywhere, they are more hopefully to be successful. I think that if you put the difficulty and success of the hydraulic valves together, and want to find the causal relationship between them, this idea itself has a problem. If you put the difficulty of hydraulic valves and the growth together, it may be right. The success of making a hydraulic valve with appropriate difficulty is not certain, but it will lead to our growth for sure. If we make this hydraulic valve, it will be helpful to our technological growth, and AAK will do it without hesitation. Ten years ago, China's hydraulic valves were almost supplied to some domestic manufacturers of mechanical equipment, perhaps because of the simple process or the trend of hydraulic valve manufacturers. At that time, AAK hydraulic valves began to be tested by HydraForce. At that time, it was difficult to find a third manufacturer who could understand English hydraulic valve drawings in Ningbo. Five years ago, international equipment manufacturers, industrial manufacturers and hydraulic valve brands began to purchase hydraulic valves from China. AAK hydraulic valve was the first to try tomato. AAK hydraulic valve has been doing ODM hydraulic valves for 3 of the world's top 500 in the industry for 10 years. The quality control process of hydraulic valves is strict, which is more strict than the ISO certification system. It is meticulous in making hydraulic valves. However, AAK hydraulic valve has never relaxed its requirements, stuck to details and increased research and development, because we know that when the growth of hydraulic valve customers exceeds that of AAK, AAK hydraulic valve will be abandoned slowly. Therefore, we must run in front of customers, lead customers, and then help customers make money. AAK hydraulic valve, the choice of international hydraulic valve brands, you are also welcome to have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-valves-aak184

For a hydraulic manifold block with many deep holes and great difficulty in finishing, the original hydraulic manifold block manufacturer worked on the trial order for 15 days. After 15 days of processing, the single hole processing cost increased by nearly 30%, and the production efficiency was only 1/5 of the normal. Leon understood that the processing cost was not affordable and had to change the manufacturer of the hydraulic manifold block. After AAK took over, the welding reamer with special groove and blade design was used to replace the conventional hard reamer. The linear speed was up to 680m/min, the production efficiency was increased by more than 10 times, and the processing cost of single hole position was only 1/3 of that of the original hydraulic manifold block manufacturer Leon, from Germany, is one of our old customers, mainly purchases hydraulic valves. Leon contacted me a few days ago and asked me to try a special hydraulic manifold block test order, and specifically reminded that the original manufacturer used a hard reamer in the finishing process, the roughness can only reach about Ra1.6, the linear speed is not higher than 50m/min, and the tool processing service life is not more than 300 pieces. The aperture tolerance of this hydraulic manifold block shall be ± 0.005mm, and the hole wall roughness shall meet Ra0.8 and Ra3.2 at the same time. If the conventional coating hard reamer is used, the machining accuracy is difficult to reach the standard, and the service life of the tool is very short, which greatly increases the single hole processing cost, that is, increases the customer's purchase cost. After 3 days of research and discussion, we replied Leon that AAK was 90% confident. After 25 days, AAK sent 6 hydraulic manifold block samples. 2 weeks later, Leon told us that the precision of AAK hydraulic manifold block fully conforms to the system error standard, and hoped that we could provide a competitive development price. Leon was surprised that how did AAK hydraulic manifold block achieve that the hole processing cost was 1/3 of the original manufacturer's, and the production efficiency was more than 10 times higher? In view of the structure and processing technology of the hydraulic manifold block, AAK technical team realized that the traditional hard reamer processing technology was not suitable for the processing of this hydraulic manifold block. Through repeated design verification and trial cutting, it is finally determined that the welding reamer with special groove and blade design should be used to replace the conventional hard reamer, with the linear speed of 680m/min, the efficiency increased by more than 10 times, the tool processing service life increased from 300 pieces to 2,500 pieces, and the processing efficiency and tool service life increased significantly. AAK hydraulic manifold block, not only high precision, welcome to try! https://www.aakindustry.com/info-detai , l/hydraulic-manifold-blocks-aak462

Tim comes from Mexico, and started purchasing hydraulic cartridge directional control valves from AAK 3 years ago, including customized ones and models benchmarking SUN or HydraForce. At the beginning of this year, Tim wanted AAK to lower the price of a hydraulic cartridge directional control valve equivalent to HydraForce. The reason was that he received quotations from other hydraulic cartridge manufacturers in China, which were 13% cheaper than AAK. I gave him a 3% discount, but Tim still chose a new hydraulic cartridge valve manufacturer. 3 months later, Tim came back to AAK. After communication, it was learned that he had encountered trouble with burrs in the hydraulic cartridge directional control valves produced by the new hydraulic cartridge valve manufacturer. Within 3 months of delivery from the new hydraulic cartridge valve manufacturer, some customers complained that a small amount of hydraulic cartridge directional control valves were stuck, due to burrs. The manufacturer of the hydraulic cartridge directional control valve blamed that it was caused by the uncleanness of the hydraulic oil. Tim realized that he had chosen a hydraulic cartridge valve manufacturer with unstable quality, there won't be much gain from further discussion. He could only stop losses in a timely manner. Tim knows that it has been 3 years since purchasing the hydraulic cartridge valves from AAK, and there has never been jamming of the hydraulic cartridge directional control valve due to burrs. I laughed and said to Tim, 'You can't always think of AAK only when you fall into troubles with other hydraulic cartridge valve manufacturers in China.’ Tim asked me to deliver 20 hydraulic cartridge directional control valves as soon as possible, resolving the customer's complaints first. After 3 days, the AAK samples were delivered and Tim's troubles were also resolved. How can hydraulic cartridge directional control valves be guaranteed to be free of burrs? AAK prefers abrasive flow deburring. Our technicians operate it this way: First installing each hydraulic cartridge directional control valve into the abrasive flow disc, covering it with a disc cover, and then setting parameters such as injection pressure, injection angle, and injection duration for the abrasive flow equipment. Then start the program and the device will run for 2 minutes before completing the deburring process, while most hydraulic cartridge valve manufacturers in China complete it in 70 seconds to save time. If it is less than this time, it may cause a small amount of burr residue. Finally, the worker used an air gun to blow out any remaining abrasive particles on each components of the hydraulic cartridge directional control valve. Due to the characteristics of semi-solid abrasives, like "mud", they are flowable and have adsorption properties. Under compression, the abrasive shuttles through various channels, taking away hidden burrs that are difficult to clean. The enclosed areas of the components are deburred and also polished. AAK hydraulic cartridge directional control valve, without burrs, and very shiny polished, you can also give it a try! AAK HYDRAULIC VALVES (630) 2023-07-18 https://www.aakindustry.com/info , -detail/directional-control-valves-aak630

This week, we’d like to introduce a Hydraulic Cartridge Direct-Acting Relief Valve equivalent to SUN standard part RDFA. The direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero leak, dirt tolerant, immune to silting and are very fast. Last year, one of our Russian customers sent inquiry for model RDFA Direct- Acting Relief Valve, 10 pcs for trial order and 500 pcs for annual order. At that time, AAK did not have existing procedure for this model yet, and it takes at least 30 days for us to develop it. The customer did not have time to wait and purchased the existing stocks from another hydraulic cartridge valve manufacturer in Ningbo China. But they have been purchasing other hydraulic cartridge valves as well as customized hydraulic manifolds from AAK, and are very satisfied with the quality. At the beginning of this year, they checked with us again if AAK can provide RDFA Direct-Acting Relief Valve now, because the valves they purchased from AAK have the longest average service life, they want to buy this model from AAK. We delivered 10 pcs of testing samples on March. Last week, we received the 500 pcs of annual order for RDFA from this Russian customer, which means that AAK samples have passed their testing. AAK hydraulic cartridge direct-acting relief valve 2 advantages: 1. Function and Performance benchmarking SUN 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-RDFA Hydraulic Direct-Acting Relief Valve: Max. Operating Pressure: 350 bar (5000 psi) Flow: 200 L (50 gpm) Internal Leakage: 10 drops/min Temperature: - 30 to +100 °C (with Standard Buna N seals) Cavity: T-3A Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties Fluid Viscosity Range: 7.4 to 420 cSt AAK E-RDFA hydraulic cartridge Direct-Acting Relief Valve, equivalent to SUN RDFA, and the service life is 2 times of its domestic peers. You are welcome to try it out. AAK HYDRAULIC CARTRIDGE VALVES (744) 2023-12-25 https://www.aakindustry.com/info , -detail/relief-valves-aak744

As a leading manufacturer of angle pattern globe valves in China, our products adhere to international standards including BS 1873, API 602, ASME B16.34, and DIN 3202. Available in a comprehensive range from 1/2 to 24 inches, catering to DN15 to DN600 specifications, our valves cover pressure ratings from 150 to 2500 LB and PN16 to PN420. Crafted from top-quality materials such as ASTM A217 and ASTM A351, our angle pattern globe valves are designed to meet diverse requirements for reliable performance across various applications. Angle Pattern Globe Valve The media flow direction of the angel globe valve is not in the same direction and usually at an Angle of 90°. It’s characterized saving elbow and convenient to operate and can be installed in the bend of the pipeline system. The angle globe valve have another name is angle stop valve, OS & Y Type, Rising Stem, Bolted Bonnet Design, inlet of the angle type globe valve and outlet of the angle type globe valve are perpendicular to each other, so the angle type globe valve on can used for vertical installation. Angle Type Globe Valves-Features The design of a 90° angle is characterized by saving elbow and convenient to operate; The resistance coefficient of fluid for angle globe valve is higher than conventional globe valves. The angle globe valve OS & Y Type, Rising Stem, Bolted Bonnet. Angle Type Globe Valves-Specifications and Materials Design & Manufacture: BS 1873, API 602, ASME B16.34 or DIN 3202 P.T Ratings: ASME B16.34 Face to Face dimensions: ASME B16.10 RF: ASME B16.5 Butt-weld Ends: ASME B16.25 Valves Marking: MSS SP-25 Inspect & Test: API 598 Size Range: 1/2 Inch - 24 Inch, DN15 - DN600 Bolted Cover, Outside Screw and York Pressure Rating: Class 150 LB - Class 2500 LB, PN16 - PN420 Body Material: ASTM A217 WC6, WC9, C5, C12, C12A, CA15, ASTM A351 CF8, CF8M, CF3, CF3M Carbon Steel, Low Carbon Steel, Alloy Steel, Stainless Steel, Duplex & Super Duplex Steel, and Special Materials in Monel, Aluminum Bronze etc. Trim Materials: SS 304, SS 304L, SS 316, SS 316L, 13% Cr Steel, ASTM A182 F11, F22 etc. Actuators can be equipped with Handwheel, Gear Devices, Electric, Pneumatic or Hydraulic etc. Optional Globe Check, Bypass system, Live Loading Packing & O-ring Seal

Minimum Order: 1 bags

Discover our Through Conduit Parallel Disc Slab Gate Valve, sourced from a reputable supplier in China. This valve complies with API 600, API 6D, and ASME B16.34 standards, offering reliability and performance. Available in sizes ranging from 2 to 48 inches and with class ratings of 150-1500 LB, it is crafted from carbon and stainless steel. Trust our commitment to quality for your through conduit parallel disc slab gate valve needs. I. Through Conduit Gate Valve Introduction The through conduit gate valve is a sliding valve whose gate is a parallel gate. The shutter can be a single shutter plate or a double shutter plate with a deployment mechanism in between. The push force of the gate to the valve seat is controlled by the pressure of the medium acting on the floating gate or floating valve seat. If the through conduit gate valve is a dual shutter through conduit gate valve, the spreading mechanism seen in the two shutters can compensate for this pressure. 1. The valve seat adopts the floating valve seat structure with o-ring sealing and pre-tightening force, and the inlet and outlet of the flat gate valve are sealed in both directions; in addition, the switching torque of this structure is 1/2 of that of the ordinary valve, and the valve can be easily opened and closed. 2. When the flat gate valve is fully opened, the channel is smooth, the flow resistance coefficient is extremely small, and there is no pressure loss, and the pipeline can be cleaned with a hair ball 3. The filling material structure with self-sealing ability is adopted, which does not need to be adjusted frequently, the switch is extremely light, and the sealing performance is reliable. The auxiliary sealing grease injection structure is set at the filling material, the sealing performance is absolutely reliable, and zero leakage is truly achieved; It solves the disadvantage that the general valve packing is most likely to leak. 4. When the through conduit gate valve is closed, the high pressure in the inner cavity can be automatically eliminated, which is convenient to use. 5. The fully enclosed structure has good protection performance and can meet all- weather requirements. Ⅱ. Applicable Occasions for Through Conduit Gate Valve 1. Class 150 - 900 LB/PN1.0~16.0 MPa (working temperature is -29~121 ℃) oil and natural gas transmission pipeline. The flat gate valve with pilot port also facilitates cleaning of the line. 2. Refined oil transportation line and storage and transportation equipment. 3. Oil and natural gas extraction wellhead devices, that is, valves for oil extraction machines. 4. The flat gate valve has piping for the medium of suspended particles. 5. City gas pipeline. 6. Water works.

Minimum Order: 1 bags

Introducing our High Pressure Forged Steel Trunnion Ball Valve, sourced from a reliable supplier. This valve is designed to meet API 6D, ASME B16.34, and DIN 3357 standards, making it suitable for high-pressure applications. Available in sizes ranging from 2 to 48 inches, it is engineered for Class 1500 LB and PN250 pressure ratings. The valve is crafted from durable materials, including Carbon Steel, Stainless Steel, and Alloy Steel, ensuring resilience in various environments. High-pressure forged steel ball valve is mainly used for long distance pipeline transportation of oil and natural gas and urban gas pipeline system. Due to the unique characteristics of the long distance pipeline valve, the design has fully taken into account its ability to withstand pipeline stress, as well as safety, weather resistance, long-term use of reliable sealing. Forged Steel Trunnion Ball Valve is usually built by 3-piece body, suitable for various kinds of pipelines, Class 150-4500 LB, PN16-PN720, JIS 5K-JIS 40K, is used to cut off or turn on the pipeline medium, can be operated by worm gear, manual, pneumatic actuator, electric driver, the connection type includes RF Flange, RTJ Flange, Butt welding, Grayloc, etc. SIZE RANGE AND PRESSURE CLASS Size Range: 2 Inch-48 Inch (DN50-DN1200) Pressure Range: Class 150 LB- 2500 LB (PN16-PN420) DESIGN STANDARDS Design / Manufacture: API 6D, ASME B16.34, DIN 3357, EN 13709, GB/T 12237, BS 5351, JIS B 2071 Face to Face Length (Dimension): MFG, API 6D, ASME B16.10, EN 558-1, DIN 3202, JIS B 2002 Flanged Dimension: ASME B16.5, EN 1092-1, BS 4504, DIN 2501 Flanged to ASME B16.5 (2 Inch-24 Inch) and ASME B16.47 Series A / B (26 Inch and above). Butt Welding Ends: ASME B16.25, EN 12982, GB/T 12224 Testing: API 598, API 6D, EN 12266-1, EN 1074-1, ISO 5208, DIN 2401, JIS B 2003. TECHNICAL FEATURES Split body, forged steel, side entry design. 3-piece bolted construction permits disassembly in the field for repairs Stem separated from the ball, no side load on the stem Tight shut-off sealing mechanism Explosive decompression-resistant seal 3 Mil Nickel plating for trim parts (Ball, Seat Ring) Trunnion mounted ball for ease of operation at high pressure (Post and Plate designs) Double Block & Bleed Capability Fire Safe Design Multiple Stem Sealing Double Isolation & Bleed (DIB) Design Available Valve cavity pressure relief (SPE Seats) Built-in sealant injection system for emergency seat & stem seal Anti-provision Design Anti-Static Device Back-seated blowout proof stem RPTFE, DEVLON, PEEK standard Plastic seat inserts Acid Gas and High H2S/CO2 applications

Minimum Order: 1 bags

PRODUCT DESCRIPTION YT-1000 ROTORK series Smart Electric Actuator With Control Valve For Valve Positioner Product Description: 1000 series Electric-pneumatic Valve Positioner is used with the pneumatic control valve to form a closed loop control loop. The DC current signal given by the control system is converted into a gas signal that drives the regulating valve to control the action of the regulating valve. At the same time, feedback is made according to the opening degree of the regulating valve, so that the valve position can be correctly positioned according to the control signal outputted by the system. The electric positioner can be used for singleacting (spring-return type) and double-acting pneumatic actuators. Installation of Electric-pneumatic valve positioners: This series is adjustment type and is designed for double-acting or single-acting actuators with input and output 4-20 mA feedback signals. The pneumatic actuator is equipped with an electric-pneumatic valve positioner and bracket, linking the feedback lever through the pinion NAMUR slot, which is fastened by 4 bolts. The air source pipeline can be connected to realize the adjustment control. YT-1000 ROTORK Ytc Smart Positioner Electric Actuator With Control Valve 0 Technical Parameter: Model Item WOOL (LinearType) 1000R (RotaryType) Single acting Double acting Input signal, resistance 4~20mA.DC 250Q+15Q Gas supply pressure 1.4- 7kgf/cm2 (20~ 10Opsi) Stroke 10~ 105mm 0-90° Electrical Interface PT (N PT) 1/2 Explosion-proof grade ExdllBT4/ExdllBT6/ExiallCT6 Protection level IP66 Ambient temperature -20°C~ 70°C Repeatability ±0.5% Linear ±1%F.S ±2%F.S ±2%F.S Hysteresis ±1%F.S Sensitivity ±0.2%F.S ±0.5%F.S Air energy consumption 3LPM (sup=1.4kgf/cm2,20psi) Flow 80LPM (sup=1.4kgf/cm2,20psi) Material Castaluminum Weight 2.7KG-2.8KG Support and Services: Technical Support and Services for Electro-Pneumatic Positioner Our technical support and services for Electro-Pneumatic Positioner are designed to help you maximize the performance of your product. We can provide: Assistance in product installation and maintenance Product troubleshooting and diagnosis Technical training and instruction in the use of the product On-site service and support Remote support and diagnostics Software upgrades Replacement parts and components For more information about our technical support and services, please contact us today. Packing and Shipping: Packaging and Shipping Electro-Pneumatic Positioner products should be packaged and shipped in the following manner: All products should be packaged in corrugated cardboard boxes and secured with bubble wrap. Shipping labels should be affixed to the outside of the package, with the shipment destination clearly marked. Products should be shipped via a reliable carrier, such as UPS or FedEx. Products should be shipped with tracking information, so that the shipment can be monitored in transit.

Carter comes from an excavator manufacturing company in Italy, and the purchase of hydraulic needle valves has been smooth in recent years. At the beginning of last year, an excavator sold by their company for less than 6 months was complained by customer. The boom of the excavator falls too fast due to its own weight, which is easy to cause danger. Their technician found that there was a problem with the hydraulic needle valve of the hydraulic system. There were obvious wear marks at the contact point between the valve spool and valve seat of the hydraulic needle valve, which was easy to leak. The leakage of the hydraulic needle valve will cause the oil saving and speed limiting circuit of the hydraulic cylinder to be uncontrollable. The boss was very angry that the equipment sold for only half a year was complained and asked Carter to find out the cause of the hydraulic needle valve problem and solve it. Carter contacted the original manufacturer of the hydraulic needle valves and requested to replace the hydraulic needle valves. The manufacturer said that the service life of hydraulic needle valves under 450bar working condition is basically 6 months. The only way to solve this complaint is to replace the hydraulic needle valves every 6 months. Such reply made Carter speechless, because his customer would not accept the high-frequency replacement of hydraulic needle valves, which not only brought a bad user experience, but also the after-sales cost was not cheap. Carter contacted all of his hydraulic needle valve suppliers, and they all replied that they were not sure to achieve a hydraulic needle valve with a service life of 1 year under the working condition of 450bar. When browsing the website, he found AAK and left a message on the website: How long is the service life of hydraulic needle valves with pressure resistance of 450bar? We replied directly for 1 year or more. The next day, he told the problems encountered in purchasing hydraulic needle valves at the beginning of last year in detail. After receiving the drawing of the hydraulic needle valve, we found that the hydraulic needle valve needed by Carter has much higher requirements than the ordinary hydraulic needle valves. We replied that AAK will select specific materials for samples, which can ensure that the hydraulic needle valves can be used for more than 1 year under normal conditions. If possible, he can directly test the samples. One month later, AAK sent 24 hydraulic needle valve samples. A year later, Carter sent an email saying that the excavator with AAK hydraulic needle valves still have not encountered boom problem yet. Among all of his hydraulic needle valve suppliers, only AAK has a service life of more than 1 year. The surface treatment of the valve body of AAK hydraulic needle valves adopts electromagnetic induction heating. Its main advantages are fast heating speed, light oxidation and decarburization of the workpiece surface, and the surface hardening layer can be adjusted according to needs, which is easy to control. The hardened layer has fine martensite structure and high hardness, strength and toughness. After surface quenching, the surface of the workpiece has large compressive internal stress, and the fatigue breaking resistance of the workpiece is high. Using induction heating surface quenching, the number of fatigue cycles under design load is about 10 times higher than that with ordinary quenching and tempering treatment. AAK hydraulic needle valves, special material selection, high pressure resistance and durability, welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-needle-valves-aak183

Caleb is an old customer of AAK in Mexico and has purchased hydraulic cartridge valves from AAK for 4 years. At the end of last year, he emailed me to discuss 3 issues related to hydraulic pilot operated relief valves. 1. The internal leakage of AAK hydraulic pilot operated relief valve cannot exceed 1 drop/min. 2. Can AAK hydraulic pilot operated relief valve achieve multi-level pressure control? 3. Can AAK hydraulic pilot operated relief valve be customized within 35 days? Looking closely at these 3 questions, I guess he encountered a problem when purchasing a hydraulic pilot operated relief valve. After communication, it was learned that in September, they developed a multifunctional excavator. Due to time constraints, Caleb purchased the hydraulic cartridge valves from a local hydraulic cartridge valve manufacturer in Mexico, but the test run was not successful. Because the internal leakage of the hydraulic pilot operated relief valve is not up to standard, multi-level pressure control also fails, resulting in a weak excavator and unstable operation. After being optimized by the original hydraulic pilot operated relief valve manufacturer, it still failed to meet the standard, so Caleb wanted AAK to try this hydraulic pilot operated relief valve. AAK engineer's opinion: the valve sleeve and adjusting sleeve of the original hydraulic pilot operated relief valve are the same part. The valve spool is installed from the oil inlet end of the valve sleeve, and then blocked by a retaining ring. The valve spool and valve sleeve are sealed by a gap, which is the source of non-compliance. After discussing with their engineers, Caleb asked AAK to sample in this direction. After 35 days, AAK sent 10 samples of hydraulic pilot operated relief valves. 4 weeks after the samples were sent, Caleb informed us that AAK hydraulic pilot operated relief valve was installed in the system, which solved the problem of causing the excavator to become weak, and the multi-level pressure control function was also available. Yesterday, Caleb emailed us an order for 160 hydraulic pilot operated relief valves. He told me, this is the first order from this customer. His boss is very satisfied with AAK hydraulic piloted operated relief valve, which has the performance advantage of internal leakage, as well as multi-level pressure control feature, allowing them to obtain customer order for excavators. AAK hydraulic piloted operated relief valve, with internal leakage of 1 drop/min, and can achieve multi-level pressure control functions. Starting with the sealing method, we divide the valve sleeve and adjusting sleeve of the hydraulic relief valve into 2 parts. The valve sleeve and valve spool are sealed with a cone, as follows: 1. The valve spool of the hydraulic relief valve is located inside the valve sleeve, and the adjusting sleeve and the valve sleeve are fixedly connected in a bayonet type. The spring is inside the valve spool, with one end against the valve seat and the other end against the bottom of the valve spool. 2. The other end of the valve seat is against the pilot valve spool inside the adjusting sleeve, and there is a pressure regulating spring inside the pilot valve spool. The valve sleeve has 2 step through-holes in the axial direction. The junction between the large hole and the small hole is processed into a conical surface, and the valve spool and valve sleeve are sealed at the conical surface. 3. A radial hole for oil control passage is provided between the valve spool and the valve seat. There is a steel ball between the valve seat and the pilot valve spool. There is a circular hole on the valve seat that communicates with the radial hole to accommodate the steel ball, and there is a blind hole on the pilot valve spool to accommodate the steel ball. AAK hydraulic piloted operated relief valve, internal leakage of 1 drop/min, and multi-level pressure control function, you can also try it! https://www.aakindustry.com/info-detail , /relief-valves-aak538

Mateo comes from a Canadian company specializing in food hydraulic equipment. The hydraulic relief valves he needs are not to be used in traditional machinery or equipment. He pays special attention to the cleanliness of the hydraulic relief valves. Last week, he sent an email saying that he would order 2,000 hydraulic relief valves at one time, because the customer placed a large order for the equipment newly developed by his company at the end of last year, and his boss repeatedly stressed that he must purchase from AAK only. Mateo gave AAK a trial order of 20 hydraulic relief valves in the second half of last year, and specifically noted that the parameters of this hydraulic relief valve should not be careless, because it is related to the sales of their new equipment. At the same time, pay attention to the cleanliness of the hydraulic relief valves, because this equipment is used in the food assembly line. I replied to him at that time that you can rest assured of the quality of AAK hydraulic relief valves. You can compare with several manufacturers at the same time, and let the results to speak. Several months after the samples of hydraulic relief valves were sent, Mateo didn't reply. During this period, we also sent several emails to follow up, but no any news, it's like a stone sinking into the sea. At that time, I thought he found a better manufacturer than AAK hydraulic relief valves. I didn't expect that 6 months later, Mateo immediately placed the big order of the hydraulic relief valves, which really surprised me. I asked Mateo why your boss decided to place such a big order for AAK hydraulic relief valves. Mateo said that during sample stage for the hydraulic relief valves, they selected 6 manufacturers and started installation and commissioning after receiving the samples. Except for one hydraulic relief valve manufacturer, the parameters of the other 5 manufacturers were qualified. They decided to choose a hydraulic relief valve with the lowest price to test the machine. The hydraulic relief valves stuck in 3 months, affecting the operation of the equipment. After disassembling the valve body, the engineer found that there was fine sand like dirt on it, which should be caused by dust pollution on the hydraulic relief valves. The manufacturer believes that the dust pollution on the hydraulic relief valves is caused during transportation, which has nothing to do with them. The engineer suggested using AAK hydraulic relief valves to test the machine instead. In more than half a year of debugging, there was no stuck problem. The boss said that although the price of AAK hydraulic relief valves was a little higher than that of other factories, the details of their dust-free packaging were amazing. Compared among 6 hydraulic relief valve manufacturers, only the packaging of AAK surprised everyone. When we know the equipment is to be used in the food production line, we know that the cleanliness of the hydraulic relief valve is strict. We did these things: 1. The components of hydraulic relief valves are cleaned with ultrasonic cleaning equipment after processing; 2. In the assembly workshop, automatic induction setting is adopted for the entrance and exit, and workers are not allowed to go in and out unless necessary, so as to avoid dust pollution of the packaging site. 3. After the hydraulic relief valves pass the quality inspection, put each one into a single layer thickness of 0.12mm polybag and seal it. 4. Put it into the injection molded PP plastic box, and then in inner packaging and outer packaging. 100% dust free protection during transportation. AAK hydraulic relief valves, dust-free packaged, used in food equipment, welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valves-aak182

Recently, the PO quantity of AAK hydraulic pressure regulating valves has suddenly increased. Whether it is the trial order or the daily order of wholesale customers, after the delivery date of the hydraulic pressure regulating valves is determined, the customers begin to pay. Brooke is my old customer. We have cooperated for more than 1 year. Most of his orders are hydraulic pressure regulating valves. Yesterday, Brooke placed a new test order and advanced the full amount. I asked him why he chose to give it to AAK. Brooke replied to us as follows: 1. AAK gives as much as it promises, unlike other hydraulic valve manufacturers who over promise but can't fulfill the commitment. 2. In the technology of hydraulic pressure regulating valves, I trust AAK most. 3. In terms of service details, AAK is the best in my current hydraulic valve supply system. My first business with Brooke was also the hydraulic pressure regulating valve. The first PO was a small order for the hydraulic pressure regulating valve. The second time, there was an inquiry for a large number of hydraulic pressure regulating valves, and we also made samples, but Brooke told me that because the price of AAK was 17% higher than that of another hydraulic pressure regulating valve manufacturer in Ningbo, so he purchased it from another factory. I remember that I joked: if there is no problem with the hydraulic pressure regulating valves you purchased, I will admire you. At that time, he needed a hydraulic pressure regulating valve with high pressure parameters. There may not be a third hydraulic pressure regulating valve manufacturer in Ningbo who can meet this parameter. As expected, Brooke said in an email last month that he was trapped by another manufacturer of hydraulic pressure regulating valves in Ningbo. After the goods arrived, the workshop technicians installed the hydraulic pressure regulating valves and began to increase 20% of the rated pressure for pressure test. After 24H, some hydraulic pressure regulating valves leaked. However, in the approval stage, the samples of hydraulic pressure regulating valves from this factory were up to standard. Brooke contacted the manufacturer of the hydraulic pressure regulating valves, but manufacturer replied that there was no stock to replace them. Brooke replaced the hydraulic pressure regulating valves with samples from AAK originally, and there was no leakage problem under the same working conditions. Finally, AAK adjusted the production schedule specially and produced new goods for him, which completely solved the leakage problem of the hydraulic pressure regulating valves. I told Brooke that to meet the requirements of this high-pressure working condition, special attention needs to be paid on not only the material selection, but also the material heat treatment and workpiece processing accuracy. More importantly, each hydraulic pressure regulating valve should pass the high-pressure test bench. AAK has a self-developed high-voltage test bench, which can accurately test each hydraulic pressure regulating valve to ensure 100% qualification. There may not be a third one like us in Ningbo. In the hydraulic valve industry, customers who leave due to price may still come back. Most customers who leave due to service will not turn back, and customers who leave due to quality will never come back. AAK hydraulic pressure regulating valves have so many repeat customers up to now, it is precisely because AAK always puts the quality requirements at the first place, strictly controls every detail, and does not ship until it passes inspection 100%. AAK hydraulic pressure regulating valves, the parameters are guaranteed to meet the standard, pay close attention to service details. You are welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pressure-regulating-valves- aak181

One morning last month, Antonio emailed us that there was a problem with AAK hydraulic directional control valves purchased some time ago, and a problem was found in the factory commissioning of the bending machine. The starting pressure of the hydraulic system of the bending machine will suddenly increase. Their engineers think it is caused by the instability of the hydraulic direction control valves and ask us to replace it. I'm totally confused. Because this hydraulic directional control valve is produced and inspected in full accordance with the parameters provided by Antonio, and the parameters of the hydraulic directional control valve are approved in the commissioning stage of the bending machine. Antonio is from Prada Nargesa company in Spain. He has cooperated with AAK on hydraulic directional control valves for several years. This is the first complaint from him. In the sample stage, Antonio informed that this hydraulic direction control valve was used in the hydraulic system of the bending machine produced by his company. It was noted that the bending tonnage was required to be 400 tons, the maximum bending length was 6 meters, and the bending accuracy was +/- 0.3°. The pressure and accuracy requirements of the hydraulic direction control valve were very high. After our internal discussion, we found the problem strange. AAK engineer asked Antonio to send a video of the working condition of the hydraulic system of the bending machine for us to check what the problem is. Through the video, we found that there was a problem about the installation position of the needle valve of the integrated valve block of the hydraulic system and the position of the hydraulic directional control valve. It was preliminarily judged that the pressure regulation mode of the hydraulic system of the bending machine is not correctly designed, and this hidden danger will come out after more than 8 hours of continuous test run. But the designers of their company didn't agree with our proposal and thought we were shifting the responsibility. I suggest Antonio give us 30 days to redesign the integrated valve block. If there are still problems after installation, AAK is willing to bear all costs. Considering that these bending machines are in a hurry to ship, it will take longer time if purchasing new hydraulic directional control valves, moreover it is not guaranteed that the new hydraulic directional control valves will be no problem, Antonio reluctantly agreed with AAK proposal. After 25 days, AAK sent out the integrated valve block with hydraulic directional control valve, which was installed and debugged for more than 8 hours. Everything of the bending machine was normal, and their designers had to affirm it. AAK professional engineers designed the pressure regulation of the hydraulic system of the bending machine as a modular type, and rearranged the position of the needle valve and the hydraulic direction control valve, so as to provide the proportional regulation function. At the same time, the unloading circuit is simple and reliable. The safety pressure valve is connected in parallel in the lower chamber of the oil cylinder to form a double safety circuit to prevent the abnormal rise of the oil pressure in the lower chamber from damaging the oil cylinder and pipeline, so as to ensure the safety of the equipment. Antonio told us privately that a similar situation happened the year before last. The hidden danger of the original design of the equipment is simply considered to be the problem of the supplier's hydraulic directional control valve. Even they changed 3 manufacturers of hydraulic directional control valves, problem was still not solved. AAK hydraulic directional control valve can give technical support that peers can't give. You are welcome to have a try! https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valves- aak180

There is an old Chinese saying “Good wine needs no bush”. The meaning is that my product is very good and I am not afraid that no one will buy it. This saying is a bit out of place now. For hydraulic manifold manufacturers, if your quality is stable but without any dissemination, no customer knows where your hydraulic manifold manufacturer is. Some hydraulic manifold manufacturers know that their quality is average, and their sales concepts are that relationships and lower prices can make up for it. Such sales concepts are not beneficial for both hydraulic manifold manufacturers and customers. For a hydraulic manifold manufacturer, how can be good salesperson, or what are the advantages that good salesperson should have? I learned from a small story that a good salesperson needs to have curiosity and participation. A sales representative of an airline, his major client gave him an inquiry. Tomorrow afternoon at 4 o'clock, 20 people from the client company will rush to Beijing for a meeting. They will be flying on the same plane, with a model requirement of 787. Everyone needs a seat on the aisle side, and each person will have an additional fruit meal. The budget cannot exceed 800 yuan. The first reaction of the salesperson was that they couldn't accept this order because their airline had a 380 model and didn't have a 787 model. An hour later, the salesperson was curious about why the customer insists on the Boeing 787, so he communicated with the customer. The customer said it was a large airplane, so the salesperson sent him photos of the cabin of their Airbus 380 model, and asked the client, ’Is it such a large airplane?’ The customer said yes. The salesperson is motivated, following closely with the second question, ‘why do 20 people have to sit on the same plane?’ The customer said it's convenient to be together, but the salesperson said that there are 20 people sitting on the same plane in the same company. From a risk perspective, it is possible, but from a probability perspective, it is almost non-existent. However, let's be more meticulous in our work and minimize the risk as much as possible. In case the boss is concerned with details. The customer said, it makes sense, listen to you. This salesperson was curious and actively involved, reaching a consensus with the buyer and landing the order. Buyers send inquiries to hydraulic manifold manufacturers, and there are many different roles for buyers, some are bosses, some are engineers, and some are just purchasers. Especially or a purchaser, his execution of the company's procurement work is based on personal consciousness. For example, in the story above, why do all people need a seat on aisle side? I think it's so comfortable, but in fact, among the 20 people, some prefer to lean against the window. The salesperson of hydraulic manifold manufacturers should be driven by curiosity, understand why customers have this requirement, communicate with customers, express concern, translate their "I think" into details, be understanding, and participate. Even if there is a budget conflict, there is still a possibility of increasing the budget. What's really important when flying to a meeting is to be on time. In order to arrive on time, there is a possibility of increasing the budget. Sometimes what buyers want is not necessarily cheap, it may be a sense of presence, security, achievement, or taking advantage of. If you want to satisfy their feeling of taking advantage with cheap, no matter how cheap you are, it cannot dispel the buyer's "I think". Customers always hope to get more and give less. If we treat the buyer's stated needs as real needs without considering their personal cognition, then this communication cannot reach the point, where all needs are executed through people. Without understanding the other party, it is difficult to have in-depth communication. The 2 common points of good salesperson for hydraulic manifold manufacturers are curiosity and participation, which need to keep up. Only by following up can there be a chance. Finding the truth about the problem and solving it requires resources. Resources are not what you need to have, but what the customers that you serve need. No matter what kind of customer, they are all role aware in an objective environment, and their needs are determined by their role. There are 2 types of resources: one is called heavy resources, which hydraulic manifold manufacturers can directly help customers achieve, and the other is called light resources, which hydraulic manifold manufacturers can help customers know how to achieve. However, this is lacking for the salesperson of most hydraulic manifold manufacturers. To express concern, interact with customers, and utilize your heavy resources to inspire your light resources. This kind of salesperson is what hydraulic manifold manufacturers and customers need. AAK HYDRAULIC VALVES (743) 2023-12-25 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak74 , 3