SV/T-0-H
Vacuum Relief Valve in a special heat jacketed design
Características
Función y descripción
Highly Developed Vacuum Relief Valve
The SV/T-0-H Type PROTEGO® valve is a highly developed vacuum relief valve 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 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 and prevents air intake almost up to the set vacuum.
Advanced Manufacturing Technology
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 sturdy housing design. After the vacuum is released, the valve re-seats and again provides a tight seal.
Dimensiones
To select the nominal size (DN), use the flow capacity chart on the following page
| DN1 | 80* / 3"* | 100 / 4" | 150 / 6" | 200 / 8" | 250 / 10" |
| DN2 | 15 / ½" | 15 / ½" | 15 / ½" | 15 / ½" | 15 / ½" |
| a | 570 / 22.44 | 570 / 22.44 | 720 / 28.35 | 920 / 36.22 | 1050 / 41.34 |
| b | 275 / 10.83 | 275 / 10.83 | 355 / 13.98 | 405 / 15.94 | 508 / 20.00 |
| c | 70 / 2.76 | 70 / 2.76 | 60 / 2.36 | 70 / 2.76 | 70 / 2.76 |
| d | 440 / 17.32 | 440 / 17.32 | 590 / 23.23 | 790 / 31.10 | 920 / 36.22 |
| e | 450 / 17.72 | 450 / 17.72 | 650 / 25.59 | 750 / 29.53 | 950 / 37.40 |
| f | 225 / 8.86 | 225 / 8.86 | 260 / 10.24 | 300 / 11.91 | 350 / 13.78 |
Dimensiones en mm / pulgadas
* also available with special flange DN 50 / 2''
Selección de materiales para la vivienda
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Heating jacket | Steel | Stainless Steel |
| Valve seat | Stainless Steel | Stainless Steel |
| Sealing | PTFE | PTFE |
Special materials upon request
Selección de materiales para la válvula de vacío
| Design | A | B | C |
| 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 pallet | Aluminium | Stainless Steel | Stainless Steel |
| Valve pallet hood | Stainless Steel | Stainless Steel | Stainless Steel |
| Sealing | Metal to Metal | Metal to Metal | Metal to Metal |
Special materials and other vacuum settings are available upon request
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other types upon request
Modelo y especificación
The valve pallet is weight-loaded.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.
Diagrama de flujo volumétrico
Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.
