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Parker Pressure Control Valve: 15 gpm, 200 psi Max Set, Brass - Soft-Seat Pressure Control Valves
ParkerSoft-Seat Pressure Control Valves

Parker Pressure Control Valve: 15 gpm, 200 psi Max Set, Brass

SKU 3G-OTH-173141

Brand
Parker
Item
Pressure Control Valve: 15 gpm, 200 psi Max Set, Brass
Category
Soft-Seat Pressure Control Valves
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Technical Specifications

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

Frequently Asked Questions

What is the Parker 637B-4-3/4-2 pressure control valve used for?

The Parker 637B-4-3/4-2 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, water treatment, and general manufacturing where precise pressure limiting is required.

What are the specifications of the Parker 637B-4-3/4-2?

This Parker valve has a flow capacity of 15 gpm, a maximum pressure setting of 200 psi, and a brass body with 3/4 in NPT ports. It is a soft-seat pressure control valve designed for reliable shutoff and minimal leakage in hydraulic systems.

Where to buy the Parker 637B-4-3/4-2 worldwide?

You can source the Parker 637B-4-3/4-2 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the valve reaches your facility efficiently.

How to install the Parker 637B-4-3/4-2 pressure control valve?

Install the Parker valve in-line with flow direction per the arrow on the body. Use thread sealant on NPT connections, tighten to manufacturer torque specs, and adjust the set screw to the desired pressure. Always test for leaks after 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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