VD/KSM-PA
Pressure and Vacuum Relief Valve made of plastic
Features
Tecnología del 10%
para un aumento mínimo de presión hasta alcanzar la apertura completa
Extrema estanqueidad
Lo que se traduce en las menores pérdidas posibles de producto y en una reducción de la contaminación ambiental
Mantenimiento óptimo de la presión
Presión de tarado próxima a la presión de apertura para un mantenimiento óptimo de la presión en el sistema
Plato de válvula guiado
El plato de válvula va guiado dentro del cuerpo para protegerlo frente a condiciones meteorológicas adversas
No corrosivo
Reducción de peso
en comparación con acero/acero inoxidable
Drenaje de condensados
Drenaje de condensados automático
Productos agresivos, pegajosos o polimerizantes
Especialmente adecuado para sustancias agresivas, pegajosas o que polimerizan
Diferentes plásticos
Se puede combinar fácilmente
Function and Description
Combined Pressure and Vacuum Relief Valve
The PROTEGO® Valve VD/KSM-PA is a state-of-the-art pressure and vacuum relief valve with excellent flow performance made of high-grade synthetic material. Typically, the valve is installed in the in-breathing and out-breathing lines of tanks, vessels, and process equipment to protect against unallowable overpressure and under pressure.
The valve prevents emission losses almost up to the set pressure. The valve is a perfect solution for corrosive, polymerizing, or sticky substances.
Full Lift Technology
The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift. Continuous investments in and a commitment to 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 at just 10% below the maximum allowable working pressure and vacuum (MAWP and MAWV) of the tank and still safely vent the required mass flow. The opening characteristic for the pressure and vacuum sides is the same.
Advanced Manufacturing Technology
Due to our highly developed manufacturing technology, the tank pressure is maintained up to the set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by special valve seats made of high quality synthetic material or PTFE. After the excess pressure is released or the vacuum is balances, the valve re-seats and provides a tight seal.
The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in stable operation of the valve pallet, optimized performance, and reduced product losses.
Product Data
Dimensiones
To select the nominal size (DN), use the flow capacity charts on the following pages
| DN1 | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" |
| DN2 | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" |
| a | 490 / 19.29 | 650 / 25.59 | 775 / 30.51 | 930 / 36.61 | 1260 / 49.61 |
| a | (750 / 29.53)* | (958 / 37.72)* | (1200 / 47.24)* | ||
| b | 376 / 14.80 | 521 / 20.51 | 563 / 22.17 | 670 / 26.38 | 879 / 34.61 |
| b | (523 / 20.59)* | (651 / 25.63)* | (912 / 35.91)* | ||
| c | 150 / 5.91 | 200 / 7.87 | 225 / 8.86 | 280 / 11.02 | 350 / 13.78 |
| d | 200 / 7.87 | 245 / 9.65 | 300 / 11.81 | 370 / 14.57 | 590 / 23.23 |
| d | (650 / 25.59)* | ||||
| e | 180 / 7.09 | 250 / 9.84 | 300 / 11.81 | 350 / 13.78 | 560 / 22.05 |
| e | (405 / 15.94)* | (500 / 19.68)* |
Dimensiones en mm / pulgadas
*Dimensions in brackets only for PVDF
Selección de materiales para la vivienda
| Design | A | B | C |
| Housing | PE | PP | PVDF |
| Valve seat | PE | PP | PVDF |
| Sealing | FPM | FPM | FPM |
| Pressure valve pallet | A, C, D | B, C, D | C, D |
| Vacuum valve pallet | A, C, D | B, C, D | C, D |
Special materials upon request
Selección de materiales para la válvula de presión
| Design | A | B | C | D |
| Pressure range [mbar] [inch W.C.] | +6,0 up to +16 +2.4 up to +6.4 | +5,5 up to +16 +2.2 up to +6.4 | +9,5 up to +30 +3.8 up to +12 | +30 up to +100 +12 up to +40 |
| Valve pallet | PE | PP | PVDF | Hastelloy |
| Sealing | PTFE | PTFE | PTFE | PTFE |
| Spindle guide | PE | PP | PVDF | Hastelloy |
| Weight | PE | PP | PVDF | Hastelloy |
Special materials and other pressure settings upon request
Selección de materiales para la válvula de vacío
| Design | A | B | C | D |
| Pressure range [mbar] [inch W.C.] | -6,0 up to -16 -2.4 up to -6.4 | -5,5 up to -16 -2.2 up to -6.4 | -9,5 up to -30 -3.8 up to -12 | -30 up to -100 -12 up to -40 |
| Valve pallet | PE | PP | PVDF | Hastelloy |
| Sealing | PTFE | PTFE | PTFE | PTFE |
| Spindle guide | PE | PP | PVDF | Hastelloy |
| Weight | PE | PP | PVDF | Hastelloy |
Special materials and other vacuum settings upon request
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 F.F. |
other types 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”.
