Relief valves

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Valves
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unloading relief valve - DN 6 - 12, 15 bar

Description

System-medium controlled overflow valves are simple and compact regulating devices...

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unloading relief valve / hydraulic - 20 gpm, 2 500 psi | RD1800

Model RD1800 Relief Valve - 20 GPM

SPECIFICATIONS
Pressure Rating
Maximum Operating Pressure...

unloading relief valve / hydraulic - 30 gpm, 3 000 psi | RV

Relief Valves
Prince Manufacturing manufactures relief valves for numerous applications. Contact a Prince representative for custom applications. To download drawings, right click select...

unloading relief valve / hydraulic - 30 gpm, 3 000 psi | DRV

Model DRV Double Relief Valve - 30 GPM

SPECIFICATIONS
Pressure Rating
Maximum Operating Pressure...

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cartridge relief valve / unloading / hydraulic - max. 50 l/min, max. 350 bar | CR series

— The CR valve is a direct operated pressure control valve
cartridge type that can be used in blocks or panels with
type D-10B seat.
— It is normally used to control the maximum pressure in...

cartridge relief valve / unloading / hydraulic - max. 100 l/min, max. 350 bar | CRQ series

— The CRQ valve is a pilot operated pressure control valve
cartridge type that can be used in blocks or panels with D-
10C type seat.
— It is normally used to control the hydraulic circuit pressure
and...

cartridge relief valve / unloading / hydraulic - max. 120 l/min, max. 380 bar | DBV series

— The DBV valve is a direct operated pressure control valve
cartridge type that can be used in blocks or panels with
seat.
— It is normally used to control the maximum pressure...

cartridge relief valve / unloading / hydraulic - max. 40 l/min, max. 350 bar | PCK06 series

— The PCK06 valve is a two or three-way pressure
compensator, cartridge type, for block or manifold
application.
— It keeps the pressure drop (characteristic Δp)...

unloading relief valve / direct-operated - max. 3 l/min, max. 350 bar | CD1-W series

— The CD1-W valve is a direct operated pressure control
valve with threaded ports and for flange mounting
installation.
—...

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unloading relief valve / proportional - 45 bar, 12 l/min | EPDBGA

BASIC FUNCTION
The basic function of a relief valve is either as a standby safety valve to limit system pressure, or as an active control valve used to maintain pressure at a specific level or over a desired range.

When used as a safety valve...

unloading relief valve / proportional - 45 bar, 12 l/min | EPDBGA

UNLOADING RELIEF
SOLENOID ACTUATED Two functions in one valve, unloading and relieving. Factory set relief pressure or adjustable option. Integral 250 micron pilot flow filter. Coil: Waterproof, hermetically...

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unloading relief valve - 0.3 - 1.5 bar | VP150QT

Features
The pressure relief valve VP150QT have been specially designed for use on transformers in which is not admitted any external pollution due to oil released during its operation (i.e....

unloading relief valve - 0.35 - 0.84 bar | RT6 series

Features
When it is required to limit the pressure rise inside a tank, in order to prevent an excessive mechanical stress of the waits, it is necessary to use a safety valve set at a precise overpressure value. The tank of oil-immersed...

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unloading relief valve / hydraulic - 1/4 - 1/2

These adjustable, spring-loaded poppet valves are used to limit system pressure. Excess pressure unseats the poppet, allowing flow with minimal increase in system pressure. As fluid is released the system pressure decreases until the spring force...

cartridge relief valve / unloading / hydraulic - 1

The Kepsel® cartridge has the same internal features as its counterpart Kep-O-seal® adjustable inline relief valve. These adjustable, spring-loaded poppet valves are used to limit system pressure. Excess pressure unseats the poppet, allowing flow with minimal increase in system pressure. As fluid...

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unloading relief valve - max. 10 500 psig, -196...288 °C

Relief Valves

Circle Seal Controls Relief Valves

Choose from a wide...

unloading relief valve / low-pressure - 1/8 - 1/4

Features
Popoff or inline valves
Adjustable crack pressure
Zero leakage
Optional factory preset
Accurate set pressure
Wide range of cracking...

unloading relief valve - 0 - 25 psig | L500 series

Technical Data

Body Materials
Brass
...

unloading relief valve / stainless steel - 1/4 - 1/2

Features
Very accurate cracking pressure
Zero leakage up to 95% of cracking pressure
100% seat leakage tested
Tamper-proof adjustment
PED...

unloading relief valve / stainless steel - 1/8 - 1 1/4

Features
Zero leakage up to 95% of cracking pressure
Positive reseat at high percentage of cracking pressure
Accurate set pressure
Wide range of cracking pressure
Tamper-proof...

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unloading relief valve / low-pressure - MPV series

Integrated packages destined for screw or vane compressors, with temperature control functions, oil circuit, oil filtration, air oil separation, minimum pressure and check valve. Available in various sizes, to equip compressors with 3 to 30 Kw of power (flow rates from 0.3 to 4.5 m3/min)....

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unloading relief valve - max. 5.9 psi

The Aerodyne mini relief valve, Model 5280, provides precise pressure
relief of inert gases in a compact...

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unloading relief valve - 60 l/min, 320 bar | FT3 MO

Fluid flows freely on A, B, P, and T lines; when on service line, protected by the relief valve,...

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unloading relief valve - 2 l/min, max. 250 kgf/cm2 | RF-G01, T01 series

The Remote Control Mounting Valve has two mounting types: the sub-plate mounting and threaded...

unloading relief valve / direct-operated - 16 l/min, max. 250 kgf/cm2 | RF-G02, T02 series

KCL Hydraulics' Direct Type Relief Valve possesses a 1/4-inch 02 valve size, a sub-plate...

unloading relief valve / pilot-operated - 100 - 400 l/min, max. 250 kgf/cm2 | RF-G, HRF-G series

The KCL HYDRAULICS pilot operated relief valves of the RF-G / HRF-G series features flow rates from 100...

unloading relief valve / pilot-operated - 80 - 400 l/min, max. 250 kgf/cm2 | RF-T03, T06, T10 series

The Pilot Operated Relief Valve RF-T03, T06, T10 series for mounting come in valve...

unloading relief valve - 60 - 125 l/min, max. 250 kgf/cm2 | BUCG series

The BUCG series is offers a wide array of pressure relief valves that come in size...

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unloading relief valve - BLD6637/01

Two Way Relief Valves are designed for transit and storage containers but can also be used for electronic and electro-optics equipments. The valves have...

unloading relief valve - BLD8887/01-06

Two Way Relief Valves are designed for transit and storage containers but can also be used for electronic and electro-optics equipments. The valves have...

unloading relief valve - 3/4

Two Way Relief Valves are designed for transit and storage containers but can also be used for electronic and electro-optics equipments. The valves have...

unloading relief valve - BLD9146/01-05

Two Way Relief Valves are designed for transit and storage containers but can also be used for electronic and electro-optics equipments. The valves have...

unloading relief valve - BLD2778/01-06

Outward Relief Valves are designed for use in electronic and electro-optics equipments. The valves have pressure relief...

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unloading relief valve - DN 100 - 400, PN 16 - 100, -30 °C ... +130 °C | SR 6.2

self-energized for extreme flow rates | straightway valve with optimised design with least possible flow...

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unloading relief valve / pilot-operated - DN 25 - 100, 100 bar | RMG 850

Application Device for transmission and offtake stations as well as for power plants and industrial facilities
Full capacity relief valve
Axial flow with valve sleeve
Function Class A
Installation...

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unloading relief valve - 2 - 3

Designed specifically for use as a...

unloading relief valve - 1 - 1 1/4

8543 Series relief valves are designed for use as a primary relief valve
in larger ASME...

unloading relief valve - 3/4

Designed specifically for use as a primary relief valve on forklift
cylinders, the 8545AK reduces the possibility of improper functioning
of the relief mechanism due to foreign...

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

Designed for use as a primary relief valve on ASME containers such
as 250, 500...

unloading relief valve - 2

Designed especially for use as a primary relief valve on large
stationary storage containers,...

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vacuum relief valve / unloading - 3

Are standard Air and Vacuum Valves mounted on a Surge Check Unit. The Air and Vacuum Valve operates in the normal fashion allowing air to escape freely at any velocity (maximum discharge velocity is approximately 300 feet per second at 6.7 PSI; however, good pipe line design restricts velocity flows of air to 10 feet per second which occurs...

unloading relief valve - 3/4 - 2

Fuel Service Air Release Valves operate while pressurized allowing entrained air to escape from the fuel pipeline, pump or reservoir...

unloading relief valve - 1/2 - 6

Air Release Valves function to release air pockets that collect at each high point of a pressured pipeline. Air...

unloading relief valve / for water systems - 1/2 - 1/4

Operate same as Air Valves for Water, differing only in appearance with elongated taller bodies. Elongated bodies minimize clogging by permitting use of a much longer float stem,...

unloading relief valve / for water systems - 1/2 - 4

Operate same as Air Valves for Water, differing only in appearance with elongated taller bodies. Elongated bodies minimize clogging by permitting use of a much longer float stem,...

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unloading relief valve / pilot-operated - 2 - 30 MPa | BP series

This valve reduces the circuit pressure down...

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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 - 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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