Relief valves

150 companies | 411 products
Valves
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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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unloading relief valve / for pneumatic conveying - VPP

Flap valves of the VPP series are specially designed as a perfectly tight interception element under cyclones or filters, at the end of a vacuum pneumatic conveying system.
They are particularly suitable for use with abrasive powders and at high temperatures.
The use of this valve is advised...

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unloading relief valve - 1/2

The Siras boiler / heating system filling and drain valve has an optional hose connection made...

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unloading relief valve - 1/2

Pressure Relief Valves are quick-opening, quick-closing valves used to protect equipment from gas pressure build up or pressure surges. Standard applications involve steam, gases, or liquids...

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unloading relief valve - GS 750

Zeppini GS 750 overfill prevention valve has been designed for avoiding any over-filling...

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unloading relief valve - 3/8 - 9/16

This tool manufactured by Hydratron, is a high pressure relief valve, suitable for application...

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unloading relief valve / direct-operated - max. 250 dm³/min, max. 63 MPa | DBD

The Pressure Relief Valve type DBD is constructed to restrict an extensive pressure in a hydraulic...

unloading relief valve / direct-operated - max. 330 dm³/min, max. 31.5 MPa | UZPD30

The pressure relief valve type UZPD30 is built to regulate the total pressure...

unloading relief valve / pilot-operated - max. 60 dm³/min, max. 29 MPa | UZPR6

The type UZPR6 is a pressure relief valve commonly utilized in...

unloading relief valve - max. 100 dm³/min, 5 - 30 MPa | UZPR10

Ponar Silesia's UZPR10 Pressure Relief Valve Sandwich Plate is integrated with a screwed-in, pilot-controlled...

cartridge relief valve / unloading / hydraulic - max. 30 dm³/min, max. 29 MPa | UZPD4

Polar Silesia's UZPD 4 is a standard pressure relief valve. This valve exhibits...

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unloading relief valve - 0.1 - 24 gpm (0.3 - 90.84 l/min) | PRESSUREMATIC™


Unlike other relief valves, the Pressurematic™ is specially designed to maintain constant pressure at its inlet over its entire operating flow range. This makes the Pressurematic™ ideal in positive displacement pump applications where line flow may vary with time, but constant fluid pressure is critical.
The Pressurematic™ is not a normal pressure regulator. Rather than reacting to fluid...

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unloading relief valve / high-pressure - 138 MPa


Max. Working Pressure: Up to 30,000 PSI (138MPa)
Temperature Rating:...

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unloading relief valve - 15 - 6 170 psig | 3800

3800 Series
ASME NB Certified: Air, Water & Steam
3800Sizes 1" x 2" to 12" x 16". Orifice areas from 0.110 to 109 square inches. Pressures from 15 psig to 6,170 psig. Temperature range of -400 °F to +450 °F. Steel body and bonnet with stainless steel trim. Semi-nozzle design. The "D"...

unloading relief valve / for water systems - 1/2 - 3

STANDARD VALVE FOR LIQUID RELIEF IS “SAME SIZED OUTLET” (UNLESS...

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unloading relief valve / for water systems - 1/2 - 3

Pilot Operated Pressure Relief Valve
Size:...

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unloading relief valve / pilot-operated - 5 - 40 l/min | SUH

A valve that provides a reduced pressure supply from the main hydraulic system suitable for pilot hydraulic operation. Accumulator and electric isolation valves...

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unloading relief valve - 9 - 11.5 psig, 450 °C

UHV Compatible all metal construction
ASME UD certified
10CFR851 compliant
Pressure relief...

vacuum relief valve / unloading - 10 psig, -20 - 150 °C

HV Compatible
Pressure relief @ 10 PSIG (±15%)
10CFR851 compliant
ISO 9000 Compliant
Leak tight to 2 x 10-8 std. cc/sec of Helium
316 Stainless steel body,...

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unloading relief valve - MA series

DESIGN
Diaphragm-Safety valve, angle type, spring-
loaded. Tested for water.
OPERATION
Opens automatically,...

unloading relief valve - DN 15 - 100, 25 bar | NG30 series

DESIGN
Spring loaded angle valve, closed version.
Pressure relief valves are no equipment
pans with safety function as defined at An. 1
of the European Directive 97/23/EC,
OPERATION
Opens...

unloading relief valve - NG3010 series

DESIGN
Spring loaded angle valve, closed version.
Pressure relief valves are no equipment
parts with safety function as defined at Art. 1
of the European Directive 97/23/EC.
OPERATION
Opens...

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unloading relief valve - DN 6 - 25

The Seetru range of safety valves for refrigeration applications are designed to meet the needs of the refrigeration industry, offering safety valve technology for compressor manufacturers, industrial refrigeration, commercial refrigeration, ice...

unloading relief valve - 53 - 370 barg | QP 329

Flows Rates:
Flow calculated based upon: Air @ 15°C and 1013 mbar...

unloading relief valve / for water systems - 0.30 - 28 barg

Flows Rates Calculated:
Flow calculated based upon: Air @ 15°C and 1013 mbar...

unloading relief valve - 0.30 - 20 barg

Flows Rates Calculated:
Flow calculated based upon: Air @ 15°C and 1013 mbar...

unloading relief valve / stainless steel - 0.70 - 30 barg

Flows Rates Calculated:
Flow calculated based upon: Air @ 15°C and 1013 mbar...

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unloading relief valve - 100QR


Description
The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.
...

unloading relief valve - 1/2 - 6

Pressure Sustaining & Relief Valves

PS - Pressure Sustaining Valve
PS(R) - Pressure Relief Valve
The valve maintains upstream pressure, regardless of flow rate variations. The valve will be in the “closed”...

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unloading relief valve - max. 400 bar | A OPP series

Over pressure protectors:
As the name indicates, this device saves instruments from the over pressure. Gaugesavers close at a set point protects instruments...

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unloading relief valve - max. 630 dm³/min | RSN, RSN series

Pressure valves from RICKMEIER are reliable, robust and exceptionally durable. All over the globe they are not only applied in the area of oil-hydraulics and lubrication...

unloading relief valve - max. 400 dm³/min | DBV 40 series

Pressure valves from RICKMEIER are reliable, robust and exceptionally durable. All over the globe they are not only applied in the area of oil-hydraulics and lubrication...

unloading relief valve - max. 1 800 dm³/min | DB 9 series

Pressure valves from RICKMEIER are reliable, robust and exceptionally durable. All over the globe they are not only applied in the area of oil-hydraulics and lubrication...

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