Unloading relief valves

146 companies | 396 products
Valves
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 Can be used as a pilot valve
 Compact construction for
cavity type AL ˘ 3/4−16 UNF
 Operated by a proportional solenoid
...

Series SDDA ... S−4 units are stack
mounting anti−shock cross−line relief
valves which relieve A to B and/or B to
A....

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Settings : 1 to 12 bar maximum
Pre-setting...

GUARANTEED UPSTREAM PRESSURE 40 bar θ 80°C
Pressure gauge...

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Buckling Pin technology offers an accurate and reliable means of calibrating pressure relief devices. BS&B has developed the BPRV™ Buckling Pin Relief Valve for in-line pressure...

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Crosby style JOS-E and JBS-E spring loaded API-526 standard pressure relief valves
Features & Benefits:
Styles JOS-E and JBS-E product...

Features & Benefits:

Increased System Output

Because of valve tightness to 98 percent of set pressure, the system can be operated nearer set pressure without valve leakage, resulting in greater system throughput.

Balanced Design

Proper...

Features & Benefits:

High seat tightness - As the force that holds the disc on the nozzle increases with the pressure, the valve remains fully tight very close to the set point.
Full opening - At set point the pressure in the main pressure chamber is eliminated almost instantaneously, resulting in a sharp...

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PILOT OPERATED PRESSURE RELIEF VALVE SERIES – IN-LINE MOUNTING

Description

PR*W valves are pilot operated pressure relief valves, for in-line mounting...

Description

PR*SP valves are pilot operated pressure relief valves, for subplate mounting according to NFPA T3.5.1 and ISO 6264 standards.

Available...

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The Adjustable-Spring actuator lets you set the desired relief cracking pressure right at the valve by simply turning the adjustment screw (see graphics above). Three diameters are available: 4", 5" and 6" (102mm, 127mm and 152mm) for both air-to-raise (AR) on 1.5" 4" (38mm -...

16AMP-AR Air Relief Valves
Comprised of a Nylon poppet valve with a Buna O-Ring seal, the valves can be supplied with 304 Stainless Steel, or 316L Stainless Steel cap bodies
The valve is supplied in sizes 1½" - 3"...

Manually adjustable, lockable cap for setting the relief pressure
316L sanitary construction with No....

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The Oilgear High Pressure Relief Valves have been developed primarly for service with high pressure ethylene processing. However they can be effectively...

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The thermoplastic pressure relief valve protects equipment and systems against overpressures or sudden pressure surges. Able to handle highly corrosive or ultrapure liquids, the relief valve prevents pumps from dead-heading due to unexpected shut-offs downstream (also known as a bypass relief valve). It maintains back...

Type-E Pressure Relief Valve (1/2" – 1-1/4")

The thermoplastic pressure relief valve protects equipment and systems against...

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PTFE Pressure Relief Valves

Features
• High reliability
•...

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Oil pressure relief valves are used to control oil supply pressure in combustion systems. The relief valve can be utilized for single-burner applications...

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The Quik-Vent™ Vacuum or Pressure Relief Valve is a superb security device for mounting on storage silos, bins or any other container to mitigate extreme...

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The CROSS SRC series dual differential type relief valves are used to protect equal size cylinders or motors...

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3/4 in. (20mm)
Description:

Series 100XL Temperature and Pressure Relief Valves are used in water heater and hot water storage tank applications to provide automatic temperature...

Description:

For automatic venting of a closed system to atmosphere when a vacuum is created. The Watts LFN360 Vacuum Relief Valve permits air to enter...

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A combination between pressure release valve and single seat valve
...

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All hydraulic systems must be equipped with...

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FEATURES:
- OPTIONAL HIGH LIFT BALL SPRING RELIEF reduces noise, heat and chatter.
- OPTIONAL O’RING PORTS to eliminate leakage.
- STEEL BALL will not jam, lock or seize and...

The Brand, adjustable pilot operated relief valve maintains the same cracking pressure at low and high flows. As the pressure setting is exceeded...

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The Apollo® Model VR Vacuum Relief valve is designed to automatically vent a system should a vacuum...

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Pressure Relief Valves are indispensable to the protection of many processes and ultimately your business. Now you can safeguard your high-cost PRVs with affordable...

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