The length diameter ratio of Hydraulic Directional Valve is 20:1. More than 10 hydraulic valve manuf

Evander comes from a Greek hydraulic equipment company. At the beginning of year, the hydraulic stretching machine they developed needed to purchase hydraulic directional control valves with large length diameter ratio. He chose to work with a supplier for 3 years to try, and the manufacturer reported that the length diameter ratio of valve hole of hydraulic directional control valve is 20:1, and valve hole Ra is not more than 0.3. He is not confident, but he can try. 2 months later, the test run was not smooth.

Evander saw an article of AAK on B2B about "Hydraulic relief valve with length diameter ratio of 11:1" and left a message.

Hydraulic directional control valve with deep hole is difficult to process. The greater the length diameter ratio, the more difficult it is. Even if it is processed, the precision is a hidden danger. This is also the reason why many hydraulic valve manufacturers surrender.

https://www.aakindustry.com/info-detail/hydraulic-directional-control-valves-aak351