Parker Pressure Control Valve: 4 gpm, 200 psi Max Set, Brass
SKU 3G-OTH-173121
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Frequently Asked Questions
What is the Parker 637B-4-1/4-2 pressure control valve used for?
The Parker 637B-4-1/4-2 is a soft-seat pressure control valve used in hydraulic and pneumatic systems to regulate downstream pressure. It is commonly applied in industrial machinery, fluid power circuits, and process control where precise pressure limiting is required to protect equipment and ensure stable operation.
What are the specifications of the Parker 637B-4-1/4-2?
This Parker soft-seat pressure control valve has a flow capacity of 4 gpm, a maximum pressure setting of 200 psi, and a brass body with 1/4 in NPT ports. The MPN is 637B-4-1/4-2. It is designed for reliable pressure regulation in hydraulic and pneumatic systems.
Where to buy the Parker 637B-4-1/4-2 worldwide?
You can source the Parker 637B-4-1/4-2 pressure control valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Parker valve.
How to install the Parker 637B-4-1/4-2 pressure control valve?
Install the Parker 637B-4-1/4-2 by connecting the 1/4 in NPT ports to the system piping using appropriate thread sealant. Ensure the valve is oriented per the flow direction arrow. Adjust the set pressure by turning the adjustment screw while monitoring downstream pressure with a gauge. Always follow system safety procedures.
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Common applications for ParkerParker Products
3G Electric supplies Parker soft-seat pressure control valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
