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The original manufacturer cannot make hydraulic cartridge valve FC12-20 successfully, and AAK got it pass the inspection

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Update time : 2023-09-12 10:56:27

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

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