ER/V-F

Pressure Relief Valve

Function and Description

Highly Developed Pressure Relief Valve

Full Lift Technology

The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to reach full lift. Continuous investments in and a commitment to research and development have allowed PROTEGO® to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve. This “full lift type” technology allows the valve to be set at just 10% below the maximum allowable working pressure of the tank and still safely vent the required mass flow.

Advanced Manufacturing Technology

Due to the highly developed manufacturing technology, the tank pressure Tank pressure Tank pressure is the pressure within a tank. is maintained up to the set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by valve seats made of high-grade steel with an inserted O-ring O-ring O-rings are ring-shaped gaskets with a round, o-shaped cross section seal Seal A seal prevents or limits unwanted transfer of product from one container to another. Seal is used as superordinate term for all types of sealing elements. , a precisely lapped valve pallet, and a sturdy housing design. After the excess pressure is released, the valve re-seats and provides a tight seal again.
Product Data and Features

Dimensions

To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), use the flow capacity chart on the following page

DN200 / 8"250 / 10" 300 / 12" 350 / 14" 400 / 16" 450 / 18" 500 / 20" 600 / 24" 700 / 28"
a465 / 18.31550 / 21.65650 / 25.59650 / 25.59800 / 31.50800 / 31.501000 / 39.371000 / 39.371200 / 47.24
b860 / 33.86860 / 33.861170 / 46.061170 / 46.061150 / 45.281175 / 46.261430 / 56.301425 / 56.101690 / 66.54
(≤370 mbar)(≤240 mbar)(≤240 mbar)(≤270 mbar)(≤220 mbar)(≤170 mbar)(≤130 mbar)(≤140 mbar)(≤140 mbar)
(≤148 inchW.C.)(≤96 inchW.C.)(≤96 inchW.C.)(≤108 inchW.C.)(≤88 inchW.C.)(≤68 inchW.C.)(≤52 inchW.C.)(≤56 inchW.C.)(≤56 inchW.C.)
b980 / 38.58980 / 38.581490 / 58.661490 / 58.661490 / 58.661515 / 59.651660 / 65.351655 / 65.161910 / 75.20
(>370 mbar)(>240 mbar)(>240 mbar)(>270 mbar)(>220 mbar)(>170 mbar)(>130 mbar)(>140 mbar)(>140 mbar)
(>148 inchW.C.)(≤96 inchW.C.)(≤96 inchW.C.)(≤108 inchW.C.)(≤88 inchW.C.)(≤68 inchW.C.)(≤52 inchW.C.)(≤56 inchW.C.)(≤56 inchW.C.)

Dimensions in mm / inches

Material selection

Design A B
HousingSteelStainless Steel
Valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. Stainless SteelStainless Steel
Valve palletStainless Steel or Steel-Stainless SteelStainless Steel
SealingFPMFPM
WeightSteelStainless Steel

Special materials upon request

Flange connection type

EN 1092-1; Form B1
ASME B16.5 CL 150 R.F.

other types upon request

Design Types and Specifications

The valve pallet is spring Spring A spring is a spiral of wire which returns to its original shape after it is pressed or pulled. -loaded. Lower pressures are achieved with the ER-V-LP, ER/V and ER/VH designs.
Pressure valve in basic designER/V-F

Additional special devices available upon request.

Settings

>+60 mbar+500 mbar
>+24 inch W.C.+200 inch W.C.

Higher pressure settings, upon request. Lower pressure settings, see types ER-V-LP, ER/V and ER/VH.

Flow Capacity Chart

The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.

Applications