Fluid Power Journal

New High Pressure Soft Seat Relief Valves  Ideal for Gas Applications

High Pressure Equipment Company (HiP), a subsidiary of Graco Inc., introduces a new soft seat relief valve designed to protect liquid and gas tubing systems from over-pressure damage and failure. These new relief valves are available in pressure ranges from 1,500 through 25,000 psi for 9/16″ O.D. tubing with adapters for other sizes available. Outlet connections are 1/2″ NPT. The soft seat valve design provides a bubble-tight seal ideal for venting gas and can be reseated.

HiP relief valves are factory set to the designated pressure and tagged accordingly. They feature 316 stainless steel bodies and removable seat glands with 17-4PH stem and seal ring for standard applications. Nitronic 50 stem and seal rings are required for hydrogen service. The soft seat material is Peek. These valves have orifice sizes of 3/8″ and 1/8″ and may be used up to 400°F with standard Viton O-ring or 450°F with a Kalrez O-ring option.

All HiP relief valves are now available with CE marking. These products will be proudly marked with the CE symbol, signifying they comply with the stringent requirements of the Pressure Equipment Directive (PED).

 ABOUT High Pressure Equipment Company:

Graco High Pressure Equipment Inc. d/b/a High Pressure Equipment Company, a subsidiary of Graco Inc., is one of the world’s leading manufacturers of specialized valves, fittings, tubing, accessories, reactors and customized products with pressure ratings up to 150,000 psi. The company has particular expertise with specialty metals Hastelloy® alloy, Inconel® alloy, Monel® alloy and titanium. End-use applications include oil and gas exploration, topside and subsea production and test equipment, waterjet cutting and blasting, chemical, industrial gas, research and many more. High Pressure was founded in 1954 in Erie, Pennsylvania, where it remains today. For more information, please visit www.HighPressure.com.

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