Relief Valves

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...

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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.

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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...

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Relief Valves

Breather Valves include enviromentally sealed model.

Using corrosion-resistant materials throughout, tamper-proof 2-way pressure and vacuum relief breather valves protect encased equipment from effects of moisture and pressure/vacuum differentials due to temperature and/or altitude changes. Model TA333-R is weather-shielded for long-term shipping or storage containers, and TA238 has perforated metal cover suitable for transit cases. Both are suited...

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Pressure Relief Assembly prevents leakage problems.
Relief Valves

Pressure Relief Assembly prevents leakage problems.

Designed to prevent environmental contamination in severe process conditions, Double-Disc Opti-Gard comprises primary and secondary rupture discs, as well as pressure gauge or switch to monitor space between discs. In event of chemical attack causing pinholing of primary disc, back-up prevents pollution of environment, while intermediate pressure sensor warns maintenance teams. Disc is...

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Relief Valves

Right Angle Relief Valves range from 5-6,000 psig.

Series R6000 includes low-pressure models from 5-550 psig and high-pressure versions from 150-6,000 psig. Both feature raised seal lip that minimizes contact with seat, eliminating friction and preventing O-ring overstressing. Frictionless poppets ensure consistency of cracking and reseat pressures. High-pressure models are equipped with Delta stem seal, while low-pressure models have...

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Proportional Valves target off-highway equipment industry.
Relief Valves

Proportional Valves target off-highway equipment industry.

Normally closed, electro-proportional Model PRV controls pressure proportional to valve input signal, allowing operator to control pressure in hydraulic systems. Rated for pressures to 3,600 psi, unit fits 10-2 and 12-2 cavities with flow capability of 21 and 50 gpm, respectively. Four-way, 3-position Model PSV controls output flow proportional to electrical input. Rated for flows from 0-5.7 gpm,...

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Relief Valves

Safety Relief Valve has -423-

Safety Relief Valves are available in cast iron, bronze, stainless steel, and aluminum in sizes from Â-½ x Â-¾ in. to 6 x 8 in., for pressures up to 900 psig. Rugged construction and dual ring control provide dependable pop action, seat tightness, and repeatability. Valves meet ASME Sections I, IV, and VIII, API 527, and are also PED and TUV certified. Applications include steam boilers,...

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