https://www.yutien.com/
YUTIEN - Hydraulic Relief Valve and Solenoid Directional Valve Factory
YUTIEN is a solenoid directional valve factory and was founded in 1971. We have accumulated rich experiences in hydraulic relief valve.
hydraulic relief valvesolenoiddirectionalfactory
https://www.mcmaster.com/product/1628N15/
1628N15 | Screw-In Hydraulic Pressure-Relief Valve
Set a specific pressure and these valves will maintain it.
screw inhydraulic pressurereliefvalve