SV/T-0-H

SV/T-0-H

Vacuum Relief Valve

in a special heat jacketed design

Function and Description

The SV/T-0-H type PROTEGO® valve is a highly developed vacuum relief valve with a valve housing that comes with a heating jacket down to the flange. It is primarily used as a safety device for inbreathing to tanks, containers, and process engineering equipment under difficult operating conditions. This includes extreme weather conditions or products that tend to form polymers at certain temperatures, adhere, or form deposits that negatively influence function (such as bitumen, tar, dust). The valve offers reliable protection against vacuum and prevents the intake of air close to the set vacuum.

When the set vacuum is reached, the valve starts to open and reaches full lift within a 40% vacuum increase. Up to the set vacuum, the tank vacuum is maintained with a seal that is far superior to the conventional standard due to the highly developed manufacturing technology. This feature is achieved by valve seats made of high quality stainless steel with precisely lapped valve pallets and a reinforced housing design. After the vacuum is relieved, the valve reseats and again provides a tight seal.

Features and Advantages

  • excellent tightness and hence least possible product losses and reduced environmental pollution
  • 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
  • complete heat jacketed design down to the flange to avoid cold bridges
  • maximum permissible heating medium temperature of 320* também pode ser fornecido com fl ange especial DN 50 / 2"C / 608* também pode ser fornecido com fl ange especial DN 50 / 2"F (at 6 bar / 87 psi)
  • a special design that preheats incoming air is also available
  • a special design with a heatable valve cover is also available
  • the valve pallet cover prevents the set pressure from being distorted by dust or condensate
  • reinforced housing design
  • a special design

Dimensions

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

DN180* / 3"*100 / 4" 150 / 6" 200 / 8" 250 / 10"
DN215 / ½"15 / ½"15 / ½"15 / ½"15 / ½"
a570 / 22.44570 / 22.44720 / 28.35920 / 36.221050 / 41.34
b275 / 10.83275 / 10.83355 / 13.98405 / 15.94508 / 20.00
c70 / 2.7670 / 2.7660 / 2.3670 / 2.7670 / 2.76
d440 / 17.32440 / 17.32590 / 23.23790 / 31.10920 / 36.22
e450 / 17.72450 / 17.72650 / 25.59750 / 29.53950 / 37.40
f225 / 8.86225 / 8.86260 / 10.24300 / 11.91350 / 13.78
DN180* / 3"*100 / 4" 150 / 6" 200 / 8" 250 / 10"
DN215 / ½"15 / ½"15 / ½"15 / ½"15 / ½"
a570 / 22.44570 / 22.44720 / 28.35920 / 36.221050 / 41.34
b275 / 10.83275 / 10.83355 / 13.98405 / 15.94508 / 20.00
c70 / 2.7670 / 2.7660 / 2.3670 / 2.7670 / 2.76
d440 / 17.32440 / 17.32590 / 23.23790 / 31.10920 / 36.22
e450 / 17.72450 / 17.72650 / 25.59750 / 29.53950 / 37.40
f225 / 8.86225 / 8.86260 / 10.24300 / 11.91350 / 13.78

Dimensions in mm / inches

* also available with special flnage DN 50 / 2''

SV/T-0-H

Material selection for housing

DesignAB
HousingSteelStainless Steel
Heating jacketSteelStainless Steel
Valve seatStainless SteelStainless Steel
SealingPTFEPTFE
DesignAB
HousingSteelStainless Steel
Heating jacketSteelStainless Steel
Valve seatStainless SteelStainless Steel
SealingPTFEPTFE

Special materials upon request

Material selection for vacuum valve pallet

DesignABC
Vacuum range [mbar]
[inch W.C.]
-7,0 up to -25
-2.8 up to -10
-10 up to-30
-4.0 up to -12
-30 up to-50
-12 up to -20
Valve palletAluminiumStainless SteelStainless Steel
Valve pallet hoodStainless SteelStainless SteelStainless Steel
SealingMetal to MetalMetal to MetalMetal to Metal
DesignABC
Vacuum range [mbar]
[inch W.C.]
-7,0 up to -25
-2.8 up to -10
-10 up to-30
-4.0 up to -12
-30 up to-50
-12 up to -20
Valve palletAluminiumStainless SteelStainless Steel
Valve pallet hoodStainless SteelStainless SteelStainless Steel
SealingMetal to MetalMetal to MetalMetal to Metal

Special materials and other vacuum settings are available upon request

SV/T-0-H

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.

Vacuum valve in basic design with heating jacket

SV/T - 0 - H

Vacuum valve in basic design with heating jacket

SV/T - 0 - H

Additional special devices available upon request.

Settings

Vacuum:

-7 mbar

-50 mbar

-2.8 inch W.C.

-20 inch W.C.

Higher and lower vacuum settings upon request.

SV/T-0-H

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/T-0-H
SV/T-0-H