Parker Pressure Control Valve: 10 gpm, 90 psi Max Set, Stainless Steel
SKU 3G-OTH-173129
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Frequently Asked Questions
What is a Parker 647B-3-1/2-2 pressure control valve used for?
The Parker 647B-3-1/2-2 is a soft-seat pressure control valve used to regulate system pressure in hydraulic and pneumatic circuits. Its stainless steel construction and 1/2 in NPT ports suit industrial applications requiring corrosion resistance, such as chemical processing or marine systems.
What are the specifications of the Parker 647B-3-1/2-2 valve?
This Parker valve has a 10 gpm flow capacity, a maximum set pressure of 90 psi, and a 1/2 in NPT connection. The body is stainless steel, and the soft-seat design provides leak-tight shutoff. The manufacturer part number is 647B-3-1/2-2.
Where to buy a Parker 647B-3-1/2-2 valve worldwide?
3G Electric supplies the Parker 647B-3-1/2-2 pressure control valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this stainless steel, 1/2 in NPT valve.
How to install a Parker soft-seat pressure control valve?
Install the Parker 647B-3-1/2-2 valve in-line with flow direction per the arrow on the body. Use thread sealant on the 1/2 in NPT ports and tighten to manufacturer torque specs. Adjust the set pressure by turning the adjustment screw while monitoring downstream pressure.
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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.













