SV/E-1-0

SV/E-1-0

Vacuum Relief Valve

Function and Description

The SV/E-1-0 type PROTEGO® valve is a highly developed vacuum relief valve with excellent flow performance. It is primarily used as a safety device for relieving vacuum in tanks, containers and process engineering equipment. The valve offers reliable protection against vacuum, and prevents inbreathing of air close to the set pressure.

The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift. Continuous investments into 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 just 10% below the maximum allowable working pressure of the tank and still safely vent the required mass flow.

Due to our highly developed manufacturing technology the tank pressure is maintained up to set pressure, with a tightness that is far superior to the conventional standard. This feature is chieved by valve seats made of high quality stainless steel and with precisely lapped valve pallets (1) or with an air cushion seal (2) in conjunction with high quality FEP diaphragm. The valve pallets are also available with a PTFE seal to prevent the valve pallets from sticking when sticky products are used, and they enable the use of corrosive media. After the vacuum is relieved, the valve reseats and provides a tight seal again.

Features and Advantages

  • “full lift type” technology valve utilizes only 10% overpressure to reach full lift
  • extreme tightness and hence least possible product losses and reduced environmental pollution
  • the set pressure is close to the opening pressure which results in best possible pressure management of the system
  • high flow capacity
  • the valve pallet is guided within the housing to protect against harsh weather conditions
  • can be used in areas subject to an explosion hazard
  • self-actuated condensate drain
  • best technology for API-tanks

Dimensions

To select the nominal size (DN), use the flow capacity chart on the following page

DN50 / 2"80 / 3"100 / 4" 150 / 6" 200 / 8" 250 / 10" 300 / 12"
a140 / 5.51170 / 6.69190 / 7.48230 / 9.06300 / 11.81325 / 12.80425 / 16.73
b75 / 2.9585 / 3.3595 / 3.74120 / 4.72140 / 5.51165 / 6.50205 / 8.07
c205 / 8.07205 / 8.07285 / 11.22360 / 14.17405 / 15.94460 / 18.11500 / 19.69
d170 / 6.69235 / 9.25280 / 11.02335 / 13.19445 / 17.52505 / 19.88505 / 19.88
e215 / 8.46215 / 8.46255 / 10.04335 / 13.19425 / 16.73460 / 18.11625 / 24.61
DN50 / 2"80 / 3"100 / 4" 150 / 6" 200 / 8" 250 / 10" 300 / 12"
a140 / 5.51170 / 6.69190 / 7.48230 / 9.06300 / 11.81325 / 12.80425 / 16.73
b75 / 2.9585 / 3.3595 / 3.74120 / 4.72140 / 5.51165 / 6.50205 / 8.07
c205 / 8.07205 / 8.07285 / 11.22360 / 14.17405 / 15.94460 / 18.11500 / 19.69
d170 / 6.69235 / 9.25280 / 11.02335 / 13.19445 / 17.52505 / 19.88505 / 19.88
e215 / 8.46215 / 8.46255 / 10.04335 / 13.19425 / 16.73460 / 18.11625 / 24.61

Dimensions in mm / inches Dimensions for vacuum relief valve with heating jacket upon request

SV/E-1-0

Detail X

Detail X

Material selection for housing

Design A B CD
HousingDuctail IronSteelStainless SteelAluminium
Heating jacket (SV / E-1-0-H...)-Steel
Stainless Steel-
Valve seatStainless SteelStainless SteelStainless SteelStainless Steel
SealingWS 3822WS 3822PTFEWS 3822
Design A B CD
HousingDuctail IronSteelStainless SteelAluminium
Heating jacket (SV / E-1-0-H...)-Steel
Stainless Steel-
Valve seatStainless SteelStainless SteelStainless SteelStainless Steel
SealingWS 3822WS 3822PTFEWS 3822

Option: Housing with ECTFE-liningSpecial materials upon request

Material selection for vacuum valve pallet

Design ABCDEF
vacuum range [mbar]
[inch W.C.]
-2,0 up to -3,5
-0.8 up to -1.4
<-3,5 up to -14
<-1.4 up to 5.6
<-14 up to -35
<-5.6 up to -14
<-35 up to -60
<-14 up to -24
<-14 up to -35
<-5.6 up to -14
<-35 up to -60
<-14 up to -24
Valve palletAluminiumStainless SteelStainless SteelStainless SteelStainless SteelStainless Steel
SealingFEPFEPMetal to MetalMetal to MetalPTFEPTFE
Design ABCDEF
vacuum range [mbar]
[inch W.C.]
-2,0 up to -3,5
-0.8 up to -1.4
<-3,5 up to -14
<-1.4 up to 5.6
<-14 up to -35
<-5.6 up to -14
<-35 up to -60
<-14 up to -24
<-14 up to -35
<-5.6 up to -14
<-35 up to -60
<-14 up to -24
Valve palletAluminiumStainless SteelStainless SteelStainless SteelStainless SteelStainless Steel
SealingFEPFEPMetal to MetalMetal to MetalPTFEPTFE

Special materials(Alu-coated, Titanium, Hastelloy) and higher vacuum settings upon request

SV/E-1-0

Detail X

Detail X

Flange connection type

EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF
EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF

other types upon request

Design Types and Specifications

The valve pallet is weight-loaded. Higher vacuum can be achieved upon request with a special spring-loaded design.
There are two different designs:

Vacuum valve in basic design

SV/E-1-0 - –

Vacuum valve with heating jacket

SV/E-1-0 - H

Vacuum valve in basic design

SV/E-1-0 - –

Vacuum valve with heating jacket

SV/E-1-0 - H

Additional special devices available upon request.

Settings

Vacuum:

-2.0 mbar

-60 mbar

-0.8 inch W.C.

-24 inch W.C.

Higher vacuum settings upon request.

SV/E-1-0

Detail X

Detail X

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). Conversion to other densities and temperatures refer to Vol. 1: “Technical Fundamentals”.

SV/E-1-0

Detail X

Detail X

SV/E-1-0

Detail X

Detail X