Product Overview
In hydraulic systems, relief valves are used to limit the system's maximum pressure, stabilize operating pressure, and protect pumps, actuators, and piping.
MH 4mm hydraulic relief valve is designed for small to medium flow hydraulic circuits, offering multiple operating pressure ranges suitable for precise control and overpressure protection at various system pressure levels.

Key Parameters
|
Product Type |
Relief Valve / Pressure Control Valve |
|
Nominal Diameter (DN) |
4 mm |
|
Operating Pressure Range |
0.5 ~ 5 MPa / 3 ~ 12 MPa / 8 ~ 20 MPa |
|
Working Medium |
Hydraulic Oil |
|
Medium Temperature Range |
-20℃ ~ +80℃ |
Typical Applications
Hydraulic System Pressure Limiting and Protection
01
Hydraulic Power Unit (HPU)
02
Actuators and Control Circuits
03
Industrial Equipment and Automation Systems
04
Hydraulic Testing and Inspection Equipment
05
Customers Worldwide
MH has 70 years aviation valve design and manufacture experience for Chinese customers in aviation and aerospace, we also have cooperated some world leading customers for more than 20 years:

Testing Equipment
MH is equipped with comprehensive measurement and testing equipment, capable of meeting the measurement needs of complex parts and testing of various fluid accessories, providing customers with all-round quality testing services.








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