Relief Valves

Relief Valves

Relief Valve attains full stable lift at 10% overpressure.

Available in 2 in. (DN 50) through 12 in. (DN 300) flange sizes, 1800 A series full lift type valve is suited for applications requiring low emissions and operation near tank maximum allowable working pressure (MAWP). Modulating valve offers near zero blowdown and reseats at near set pressure, while reducing breathing losses of product in tank.

Read More »
Backflow Preventer Valves feature compact, modular design.
Relief Valves

Backflow Preventer Valves feature compact, modular design.

With modular check valve design, RP 4A Series reduced pressure principle backflow preventers can fit in tight spaces and under small enclosures. They have 4 top-mounted test cocks and 2 removable captured spring check modules which are independently accessible from top and can be replaced or disassembled for ease of maintenance. Featuring corrosion resistant all-bronze body, units offer maximum...

Read More »
Gas or Liquid Relief Valves-1,500 through 60,000 psi
Relief Valves

Gas or Liquid Relief Valves-1,500 through 60,000 psi

Erie, PA-September 2, 2008-High Pressure Equipment offers a line of relief valves designed to protect a system from over-pressure damage and failure for gas or liquid service. They offer these valves in a factory set style with settings made and tagged accordingly prior to being shipped and a field adjustable style both of which have 316 stainless steel bodies and seat glands. The factory set...

Read More »
Relief Valves

Pressure Relief Insert features zero leakage.

Weighing 6 g, Model 281 Zero Leak PRI is designed for thermal relief and low flow hydraulic pressure relief applications where zero leakage is needed. Flow rates range from few mLs per minute for thermal relief applications and up to 250 mL/min for low flow pressure relief applications. Working temperature is -65 to +275-ºF, while cracking pressure is preset with capabilities ranging from...

Read More »
Relief Valves

Proportional Relief Valve offers protection from 150-6,000 psig.

Available with 0.142 in. flow ports, HPRV, PED-certified valve features captured seat design that is blow-out and chip-resistant, as well as balanced poppet design for operation in back pressures up to 2,000 psig. Range of color-coded springs configure valve for 8 cracking pressure ranges, and fine adjustment is achieved by external nut secured by Tru-Loc mechanism and lock wire. O-ring seals...

Read More »
Sequence/Relief Valve features pressure range of 0-20 psi.
Relief Valves

Sequence/Relief Valve features pressure range of 0-20 psi.

Designed for precise control in pneumatic circuits, Model R-6100 can be used as relay valve to sequence specific signal operation, or as relief valve to limit pressure. Fixed or adjustable pressure settings are available. To adjust valve, user turns adjusting screw clockwise to reach zero adjustment, then turns adjusting screw counterclockwise to desired relieving or sequencing pressure.

Read More »
Relief Valves

Kelso Completes Delivery of Valve Order to Trinity Tank Car for 32 New Tank Cars

VANCOUVER, B.C., Aug. 9, 2007 - Kelso Technologies Inc. (TSX-V:KLS) (Other OTC:KEOSF) (the Company ), developer of the unique JS line of pressure relief valves, is pleased to announce that it has just delivered the last 10 JS75 pressure relief valves of a total order of 32 valves ordered by Trinity Tank Car Inc. The valves were supplied to Trinity Tank Car based on specifications delivered by...

Read More »
Relief Valves

Pressure Relief Valve suits economizer applications.

Certified under requirements of ASME Code Section I, pilot-operated Series 1500 is designed specifically for overpressure protection of economizers in fossil-fired power plants. All-plastic, soft seat valve operates as non-flowing modulating pilot, opens in proportion to relief demand, and is suitable for hot water, flashing water, and steam service. With no elastomer seats or seals, unit handles...

Read More »

All Topics