113 visiting now: 92 USA USA flag 22 Belgium Belgium flag 1 France France flag 1 UK UK flag

Highlighted Companies

  • Eagle Eyes China Inspection Company (China): Eagle Eyes (CHINA) Quality Inspection Co.,Ltd. is a professional Third... https://www.china-qualityinspection.com
  • YESN-China shipping Labels manufacturer-compatible label factory (China): XIAMEN YESN-China shipping Labels manufacturer-compatible... http://www.yesnlabels.com
  • Hydraulic Screw In Cartridge Valve Spool Accuracy Testing Tips - China

    price: 30.00 Dollar US$

    The original manufacturer cannot make hydraulic cartridge valve FC12-20 successfully, and AAK’s valve passed the inspection once Zimraan, from Türkiye, had trouble purchasing hydraulic screw-in cartridge valves from Ningbo China for the first time.

    In April of this year, they needed to purchase a hydraulic screw-in cartridge valve equivalent to HydraForce FC12-20 - With the suggestion of colleagues, he chose a hydraulic screw-in cartridge valve manufacturer in Ningbo and placed the order for 100 pcs directly.

    They made a spot check in Türkiye and increased the working pressure by 5-10%.

    They found that a small number of hydraulic screw-in cartridge valves were leaking.

    The engineer believes that the accuracy of the valve spool component is not up to standard or caused by small scratches, but the original hydraulic screw-in cartridge valve manufacturer believes that it is caused by excessive pressure.

    Zimraan was helpless and could only inspect the hydraulic screw-in cartridge valves from the original manufacturer one by one.

    For those with leakage, he had to re-purchase.

    Zimraan saw on Google that AAK has been a hydraulic cartridge valve supplier for HydraForce for 9 consecutive years, leaving a message:

    1 - Does AAK have a hydraulic screw-in cartridge valve equivalent to HydraForce FC12-20? 2 - If pressurized by 5-10%, will the hydraulic screw-in cartridge valve leak?

    3 - What is the delivery time for 36 pcs of hydraulic screw-in cartridge valves? Based on his message, I determined that there was a problem with the internal accuracy of the hydraulic screw-in cartridge valve.

    After communication, I learned that he encountered a problem when purchasing hydraulic screw-in cartridge valves from Ningbo for the first time.

    AAK's judgment is consistent with his engineer.

    Due to time constraints, he requested AAK to ship 36 pcs of hydraulic screw-in cartridge valves directly.

    3 weeks later, Zimraan informed us that they still pressurized by 5-10% and tested AAK hydraulic screw-in cartridge valves, and there were no leaks in all 36 pcs.

    I told him that only internal accuracy is guaranteed, and each hydraulic screw-in cartridge valve can pass pressure testing.

    How to ensure internal accuracy? Precision machining is the core, and most hydraulic cartridge valve manufacturers may not fall behind in this stage.

    However, not every manufacturer is performing precision testing on each valve spool component, or performing it properly.

    Before assembling, AAK hydraulic screw-in cartridge valve spool components must undergo a precision manual pressure measuring instrument.

    No matter the sealing performance, surface roughness, small scratches, etc.

    of the valve spool components, any problem can be discovered.

    First, install the valve spool assembly into the valve cage, then place it into the test valve block, turn on the pressure measuring instrument, and set the 15 second pointer dynamic diagram.

    Start squeezing the airbag.

    When the instrument pressure gauge reaches the specified pressure, focus on whether there is any change in the pointer of the pressure gauge.

    If there is no change in the pressure gauge pointer within 15 seconds, it indicates that the accuracy of the valve spool assembly meets the standard.

    Here is another tip, the setting of the 15 second pointer dynamic graph.

    Most manufacturers' testers rely solely on the instrument manual for testing mechanically.

    AAK hydraulic screw-in cartridge valve, with meticulous testing and guaranteed accuracy, Welcome to give it a try! AAK HYDRAULIC CARTRIDGE VALVES (670) 2023-09-12


    Company Contact:


    • Phone: 86-574-83008115

    • Address: Bona Building, No. 456 Taikang Middle Road, Yinzhou, Ningbo, China, NINGBO , ZHEJIANG , China

    • Email: Email


    Published date: September 18, 2023

    • Business Description: Hydraulic valve manufacturer, focused on the Development and Manufacturing of Hydraulic Cartridge Valves since 2006, in Ningbo China

      Since its establishment 12 years ago, 6 first-line international brand importers have placed orders with AAK for 5 consecutive years, with a re-peat order rate of 62%.

      Exported to more than 20 countries, AAK Hydraulic Valves used on "AIRCRAFT" have been supplied to Russian customers.

      68%+ of the high precision hydraulic valves exported from Ningbo Port come from AAK hydraulic valves.

      Our Products:

      - Hydraulic Relief Valves Dust Free Packaged For Food Equipment

      - Hydraulic Needle Valves 450bar Over 1 Year Service Life

      - Hydraulic Pilot Operated Relief Valves Benchmarked With German Hawe

      - With Temperature And Gain From Aak Hydraulic Valves

      - Hydraulic Valve Blocks Free Of Oil Leakage

    Related listings



    • Pressure Relieving Proportional Valve Benchmarking Hydraforce Ts38 20
      Pressure Relieving Proportional Valve Benchmarking Hydraforce Ts38 20
      Valves - AAK INDUSTRY CO.,LTD. - China - September 17, 2023 - 60.00 Dollar US$

      For Pressure Relieving Proportional Valve equivalent to HydraForce TS38-20, a Canadian customer placed the annual order with AAK after 1 year of testing Recently, we launched a hydraulic Solenoid Operated Pressure Relieving Proportional valve equival...

    • Three Way Slurry Valve
      Three Way Slurry Valve
      Valves - Zhengzhou Free Fluid Control Technology Co.,Ltd - China - September 11, 2023 - 2600.00 Dollar US$

      Three-way reversing slurry valve is an inverted process valve developed according to the alumina process, which adopts the design principle of superimposed multi-function valve, and is designed as a one inlet and two outlets structure. Slurry diversi...

    • Proportional Relief Valve Benchmarking Hydraforce Ts10 26
      Proportional Relief Valve Benchmarking Hydraforce Ts10 26
      Valves - AAK INDUSTRY CO.,LTD. - China - September 10, 2023 - 50.00 Dollar US$

      For Proportional Relief Valve equivalent to HydraForce TS10-26, a Canadian customer placed the annual order with AAK after 1 year of testing Recently, we launched a hydraulic Solenoid Operated proportional Relief valve equivalent to HydraForce standa...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"