V/SV-XXL
Vacuum Relief Valve
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
Condensate Drainage
automatic condensate drain
API Tanks
best technology for API tanks
For Cyrogen Tanks
suitable for use on cyrogen tanks
Function and Description
Highly Developed Vacuum Relief Valve
The PROTEGO® V/SV-XXL valve is a highly developed optimized
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 excellent flow performance. It is primarily used as a
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 relieving
vacuum
Vacuum
Vacuum is the pressure in an enclosed space that is lower than the ambient pressure.
in tanks, containers, and process
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.
.
High-Performance Vacuum Relief Valve with Precise Tightness
When the
set vacuum
Set vacuum
Internal negative gauge pressure at which a vacuum valve first opens.
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 100% vacuum increase. The tank vacuum is maintained up to the set vacuum with a tightness that is above the normal standards due to our highly developed manufacturing technology. This feature is ensured by valve seats made of high quality stainless steel with precisely lapped valve pallets and a reinforced housing design. After the vacuum is balanced, the valve re-seats and provides a tight
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.
.
Flow-Optimized Valve Body for Maximum Efficiency
The optimized fluid dynamic design of the valve body and valve pallet is a result of extensive research and development, resulting in stable operation of the valve pallet, optimized performance, and reduced product losses.
Product Data and Features
Dimensions
| DN | 300 / 12" |
| a | 946 / 37.24 |
| b | 649 / 25.55 |
Dimensions in mm / inches
Dimensions of pressure and vacuum relief valves with heating jacket upon request
Material selection for housing
| Design | A | B | C |
| Housing | Aluminium | Steel | Stainless Steel |
| Heating jacket (V/SV-XXL-H-...) | – | Steel | Stainless Steel |
| Valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. | Stainless Steel | Stainless Steel | Stainless Steel |
| Sealing | PTFE | PTFE | PTFE |
| Cover | Aluminium | Steel | Stainless Steel |
Option: Housing ECTFE-coated
Special materials upon request
Material selection for vacuum valve pallet
| Design | A | B |
| Pressure range [mbar] [inch W.C.] | -2.0 up to -9.0 -0.8 up to -3.6 | <-9.0 up to -16 <-3.6 up to -6.4 |
| Valve pallet | Aluminium | Stainless Steel |
| Sealing | Metal to Metal | Metal to Metal |
Special material as well as higher vacuum 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 pallets are weight-loaded. Higher vacuum can be achieved upon request with a special spring Spring A spring is a spiral of wire which returns to its original shape after it is pressed or pulled. -loaded design. There are two different designs:Pressure/vacuum valve in basic designV/SV-XXL - –
Additional special devices available upon request.
Settings
| Vacuum: | -2.0 mbar | -16 mbar |
| -0.8 inch W.C. |
Higher 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