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PROTEGO
Excellence in Safety and Environment

SV/T-0-H

Vacuum Relief Valvein a special heat jacketed design

Features

Extreme Tightness
resulting in lowest possible product Product Includes equipment, protective systems, devices, components and combinations of these. losses and reduced environmental pollution
Flow Capacity
optimized flow capacity
Guided Valve Pallet
valve pallet Valve pallet Valve pallet is the generic term for the assembly that rests on the valve seat. is guided inside the housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. to protect against harsh weather conditions
Used in Explosion Hazardous Areas
can be used in explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. hazardous areas
Heating Jackets
complete heating jacket up to the flange to avoid ice build-up
Heatable Valve Cover Available
available in a special design with a heatable valve cover
Sturdy Housing Design
(PN 10 and PN 16)
Lifting Device
available in a special design with lifting device Device A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. (for ships)
Function and Description

Highly Developed Vacuum Relief Valve

The SV/T-0-H type PROTEGO® valve is a highly developed vacuum relief valve Vacuum relief valve A vacuum relief valve is used to ventilate a part of the system and protects it from impermissible underpressure. with a valve housing that is equipped with a heating jacket that can be heated up to the flange. It is primarily used as a device for in-breathing in tanks, containers, and process engineering equipment Equipment Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion. under difficult operating conditions. This includes extreme weather conditions or products that tend to form polymers at certain temperatures, stick together, or form deposits that negatively influence function (such as bitumen, tar, dust). The valve offers reliable protection against vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. and prevents air intake almost up to the set vacuum Set vacuum Internal negative gauge pressure at which a vacuum valve first opens. .

Advanced manufacturing technology

When the set vacuum is reached, the valve starts to open and reaches full lift Lift Lift is the actual travel of the valve pallet from the main valve out of the closed position. within a 40% vacuum increase. Up to the set vacuum, the tank vacuum is maintained with a 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. 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 sturdy housing design. After the vacuum is released, the valve re-seats and again provides a tight seal.
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

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 flange DN 50 / 2''

Material selection for housing

DesignAB
HousingSteelStainless Steel
Heating jacketSteelStainless 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
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

Special materials and other vacuum settings are available 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 weight-loaded.
Vacuum valve in basic design with heating jacketSV/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.

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