High Pressure Equipment Company (HiP), a subsidiary of Graco Inc., has introduced a new soft seat relief valve designed to protect liquid and gas tubing systems for over-pressure damage and failure.

The new relief valves are available in pressure ranges from 1,500 through to 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.

Soft Seat Relief Valve-008

Source: High Pressure Equipment Company (HiP)

Nitronic 50 stem and seal rings are required for hydrogen service. The soft seat material is Peek.

The 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 Kalrez O-ring option.

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