29 visiting now: 13 Canada Canada flag 8 UK UK flag 8 USA USA flag 2 Germany Germany flag 1 Australia Australia flag 1 Sweden Sweden flag

Highlighted Companies

Hydraulic Cartridge Relief Valve Meeting 3 High Requirements - China

price: 60.00 Dollar US$

For the Cartridge Relief Valve with 3 requirements, AAK got a big order 3 months later The local Israeli manufacturer was not willing to take risk to develop the cartridge relief valve due to small size, and gave it up.

After taking over, AAK made 3 improvements in the structure of the hydraulic cartridge relief valve, met the 3 requirements: 450bar high pressure resistance, 500L/min large flow, small pressure loss, and small volume.

3 months later, Vaughan sent an order for 600 cartridge relief valves.

Vaughan is from Israel, and they mainly focus on hydraulic equipment in the military market.

At the beginning of last year, they customized a hydraulic power unit, which needs to have a pressure resistance of 450bar, the flow controlled by the cartridge relief valve in the system exceeds 500L/min, with small pressure loss and small volume.

He contacted a local relief valve manufacturer to try the sample.

The manufacturer reported that there was no problem with the functional requirements, but the size was too small and the risk was high, so he was unwilling to develop it.

Vaughan contacted more than 10 cartridge valve manufacturers, but it was fruitless after 1 week.

Vaughan noticed AAK's article on high pressure and large flow cartridge valves on B2B.

He emailed me: can AAK try the cartridge relief valve with high pressure resistance of 450 bar, flow over 500L/min, small pressure loss and small volume? My reply: It depends on how small the volume is.

Vaughan sent the drawing of cartridge relief valve.

After getting the confirmation that AAK can optimize the internal structure of the cartridge relief valve, he confirmed for us to make samples.

After 50 days, AAK sent 12 cartridge relief valve samples.

3 months later, Vaughan sent an order for 600 cartridge relief valves.

Their engineers were very satisfied with AAK cartridge relief valves, which not only met the high pressure resistance of 450bar, large flow of 500L/min, small pressure loss, and small volume, but also completely met the requirements of the drawing, solving the space barrier of their power unit.

AAK has made 3 improvements in the structure of the cartridge relief valve: 1 - The inner wall of the outer end of the cartridge relief valve cage is provided with a boss to limit the valve spool in the valve cage.

The spool, the cage and the valve cover form the first chamber.

The first chamber is provided with a pressure regulating spring, one end of which is connected with the cover and the other end is connected with the spool body.

2 - The right end of the cage is provided with a first oil port, and the circumference of the cage is provided with 2 rows of second oil ports.


Company Contact:


  • Phone: +8657483008115

  • Address: Bona Business Building, No. 456 Taikang Middle Road,, Yinzhou, Ningbo, China, Ningbo , Zhejiang , China

  • Email: Email


Published date: January 23, 2023

  • Business Description: Focused on the Development and Manufacturing of Hydraulic 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.

Related listings



  • Hydraulic Manifold Tricks To Reduce Energy Consumption
    Hydraulic Manifold Tricks To Reduce Energy Consumption
    Machine made parts - AAK Industry CO., LTD - China - January 22, 2023 - 320.00 Dollar US$

    AAK four-way Hydraulic Manifold helped Oleos reduce the energy consumption of equipment by 20% Oleos is from a Spanish hydraulic equipment manufacturing company and has cooperated with AAK for 3 years, mainly focusing on non-standard hydraulic cartri...

  • Hydraulic Cartridge Relief Valve 3 Tricks For Optimization
    Hydraulic Cartridge Relief Valve 3 Tricks For Optimization
    Machine made parts - AAK Industry CO., LTD - China - January 21, 2023 - 60.00 Dollar US$

    AAK Optimized the Hydraulic Direct Acting Cartridge Relief Valve with 3 tricks, Gaylord gave up the original Indian manufacturer Gaylord comes from Holland and is an old customer of AAK hydraulic valve. Some time ago, he emailed me to ask if AAK coul...

  • Hydraulic Cartridge Relief Valve Unique Processing Tricks
    Hydraulic Cartridge Relief Valve Unique Processing Tricks
    Machine made parts - AAK Industry CO., LTD - China - January 20, 2023 - 60.00 Dollar US$

    AAK Hydraulic Cartridge Relief Valve used 3 tricks to cure system fever and helped Ledger workshop upgrade successfully These days, the epidemic has led to more fever cases. In a brewery in Brazil, its hydraulic station also "ran a fever”. AAK hydrau...



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 to avoid: Internet Crime Complaint Center - International Financial Scams
  • 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"