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Parker Pressure Control Valve: 4 gpm, 35 psi Max Set, Brass - Soft-Seat Pressure Control Valves
ParkerSoft-Seat Pressure Control Valves

Parker Pressure Control Valve: 4 gpm, 35 psi Max Set, Brass

SKU 3G-OTH-173118

Brand
Parker
Item
Pressure Control Valve: 4 gpm, 35 psi Max Set, Brass
Category
Soft-Seat Pressure Control Valves
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Technical Specifications

Parker
Manufacturer Part Number
637B-2-1/4-2
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Parker Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the Parker 637B-2-1/4-2 pressure control valve used for?

The Parker 637B-2-1/4-2 is a soft-seat pressure control valve used in hydraulic and pneumatic systems to regulate downstream pressure. It is commonly applied in industrial fluid power circuits, lubrication systems, and process control where precise pressure limiting or reducing is required.

What are the specifications of the Parker 637B-2-1/4-2?

This Parker pressure control valve has a maximum flow of 4 gpm and a maximum pressure setting of 35 psi. It features a brass body with 1/4 in NPT ports and a soft-seat design for positive shut-off. The manufacturer part number is 637B-2-1/4-2.

Where to buy the Parker 637B-2-1/4-2 worldwide?

3G Electric supplies the Parker 637B-2-1/4-2 pressure control valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Parker valve globally.

How to install the Parker 637B-2-1/4-2 pressure control valve?

Install the Parker 637B-2-1/4-2 by connecting the 1/4 in NPT ports to the system piping using compatible thread sealant. Ensure the valve is oriented per the flow arrow on the body. Adjust the set screw to the desired 35 psi max setting. Always depressurize the system before installation.

Used in

Common applications for Parker
Injection molding machine proportional directional control — Parker solenoid coils and proportional valve cartridges for mold-closing and hydraulic actuation circuits
Construction equipment hydraulic steering and boom control — Parker directional control valves with solenoid actuation for excavator and loader hydraulic systems
Industrial press forming systems — Parker pressure-relief and proportional directional valves for tonnage control and cycle sequencing
Material-handling conveyor systems — Parker proportional control valves with solenoid pilot stages for smooth load acceleration and deceleration
Tire-building machinery — Parker solenoid-actuated directional cartridges for synchronized multi-axis hydraulic positioning
Forestry and mobile equipment — Parker valve spools and solenoid assemblies rated for harsh-environment hydraulic circuits and mobile-duty pressure cycling

Parker 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.

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