Gear pump set-DZ1-G0.25-I

Model Interpretation
Model Segment Description
DZ Direct-acting sequence valve (DZ series)
1 Nominal size NG1 (corresponding to 1/4″ port)
G Adjustment method: adjusting screw with protective cover
0.25 Setting pressure range: 0-25 bar
I Equipped with check valve (without “I” means non-equipped)
Core Technical Parameters
Parameter Item Value Remarks
Type Direct-acting sequence valve (with check valve) Used for pressure sequence switching of secondary circuits
Nominal Size NG1 (1/4″) Suitable for small-flow branch control
Rated Pressure Up to 31.5 MPa (315 bar) Pressure range matches industrial hydraulic systems
Setting Pressure 0-25 bar Adjustable, suitable for low-pressure working conditions
Maximum Flow Rate Up to 60 L/min Meets the demand of small-flow branches
Mounting Method Subplate mounting Mounting surface complies with DIN24340 Type A, ISO4401
Ports P (inlet), A (working), T (return), X (control) With pressure gauge port
Medium Mineral oil and other hydraulic oils Viscosity 10-800 mm²/s, NAS1638 Class 9
Sealing Nitrile Butadiene Rubber (NBR) Suitable for conventional working conditions
Key Features & Applications
Direct-acting structure with fast response, ideal for low-pressure and small-flow systems.
Integrated check valve enables free reverse flow to protect downstream circuits.
Protective cover on the adjusting screw prevents misoperation, suitable for industrial field environments.
Commonly applied in pump outlet bypass control, branch pressure protection, and actuator sequence motion control.