Relief valves

151 companies | 412 products
Valves
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unloading relief valve - 3/4

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...

vacuum relief valve / unloading - 1/2 - 3/4

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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vacuum relief valve / unloading - 1/2 - 3/4

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

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vacuum relief valve / unloading - 1/2 - 3/4

The “MRV” series 2 port design allows each valve to be used both as pressure relief and...

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unloading relief valve / hydraulic - 207 Bar | RL

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...

unloading relief valve / hydraulic - 207 bar, 0 - 30 gpm | POR75

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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unloading relief valve / pilot-operated - 35 MPa, 200 l/min

Various type of pressure control valves are available, from relief valves to pressure switches, to control the pressure at suitable level...

unloading relief valve / pilot-operated - 25 MPa, max. 400 l/min | BT/BG series

Instructions
Sub-plate
Sub-plates are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should have
a good ma-chined finish.
If a remote control relief valve is used...

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vacuum relief valve / unloading - 1/2 - 3/4

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

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unloading relief valve - PRV, SRV

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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unloading relief valve - PRV, SRV

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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unloading relief valve - 275 psi | BPRV™

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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unloading relief valve / high-pressure - max. 2.1 MPaG, max. 220° C

COSPECT® - High precision pressure reducing...

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vacuum relief valve / unloading - 1 1/2

Cepex offers a complete range of valves...

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unloading relief valve / direct-operated - 1.5 l/min, 420 bar | DVSA series

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

unloading relief valve / direct-operated - max. 350 bar | SDD series

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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unloading relief valve / pilot-operated - 1 - 4

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...

unloading relief valve / low-pressure - 1/2 - 12

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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unloading relief valve - 3/8

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

unloading relief valve - DN 15 - 100, Pn 40 | RP204

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

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unloading relief valve / pilot-operated - max. 105 gpm, 5 000 psi | PX*W

PILOT OPERATED PRESSURE RELIEF VALVE SERIES – IN-LINE MOUNTING

Description

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

unloading relief valve / pilot-operated - max. 132 gpm, 5 000 psi | PR*SP

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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unloading relief valve / pilot-operated - 25 - 320 l/min | OLS series

Steering comes first with our priority valves, for maximum safety on the road and on the job
A Sauer-Danfoss priority valve will always give your steering system precedence. That makes it an important safety feature...

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unloading relief valve / proportional - 1/2

70 litres, proportional open circuit or close circuit...

unloading relief valve / proportional - 1

150 litres proportional open circuit or close circuit tipping...

unloading relief valve / proportional - 1

180 litres proportional open circuit or close circuit tipping valve, pneumatic operated, with 400 bar relief
valve....

unloading relief valve / proportional - 1 1/4

250 litres proportional open circuit tipping valve with pneumatic shifting,...

unloading relief valve - max. 400 bar, 70 - 150 l/min

Today, we have in our range of products a
complete relief...

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unloading relief valve - DN 40 - 400, PN 16 | 1470

The 1470 series is a pressure surge relief valve engineered by Hawle. It is suitable for use in potable water.

The valve reduces water hammers in two automatic steps. It...

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