D/SVL
Pressure Relief Valve
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
Flujo volumétrico
Flujo de caudal optimizado
Plato de válvula guiado
El plato de válvula va guiado dentro del cuerpo para protegerlo frente a condiciones meteorológicas adversas
Se usa en zonas con riesgo de explosión
Puede utilizarse en zonas con riesgo de explosión
Tanques API
la mejor tecnología para tanques API
Function and Description
High-Performance Pressure Relief Valve
The D/SVL Type PROTEGO® valve is a high performance pressure relief valve. It is primarily used as a device for relieving pressure in tanks, containers, and process engineering equipment. The valve offers reliable protection against overpressure and prevents excessive loss of product vapors close to the set pressure.
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.
With this “Full Lift Type” technology, the valve can be set at just 10% below the maximum allowable working pressure of the tank and still safely vent the required mass flow.
Advanced Manufacturing Technology
Due to the 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 valve seats made of high quality stainless steel and with precisely lapped valve pallets (1), or with an air cushion seal (2) in conjunction with high quality FEP diaphragm. The valve pallets are also available with a PTFE seal to prevent the valve pallet from sticking when sticky products are used, and they enable the use of corrosive substances. After the overpressure is released, the valve re-seats and provides a tight seal again.
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 chart on the following page
| DN | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12 |
| a | 336 / 13.23 | 412 / 16.22 | 444 / 17.48 | 564 / 22.20 | 664 / 26.20 | 687 / 27.05 | 687 / 27.05 |
| b | 200 / 7.87 | 295 / 11.61 | 295 / 11.61 | 465 / 18.31 | 550 / 21.65 | 650 / 25.59 | 650 / 25.59 |
Dimensiones en mm / pulgadas
Selección de materiales para la vivienda
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Valve seat | Stainless Steel | Stainless Steel |
| Sealing | PTFE | PTFE |
| Weather hood | Stainless Steel | Stainless Steel |
Special materials upon request
Selección de materiales para la válvula de presión
| Design | A | B | C | D | E | F |
| Pressure range [mbar] [inch W.C.] | +2,0 up to +3,5 +0.8 up to +1.4 | >+3,5 up to +14 >+1.4 up to +5.6 | >+14 up to +35 >+5.6 up to +14 | >+35 up to +60 >+14 up to +24 | >+14 up to +35 >+5.6 up to +14 | >+35 up to +60 >+14 up to +24 |
| Valve pallet | Aluminium | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Sealing | FEP | FEP | Metal to Metal | Metal to Metal | PTFE | PTFE |
Special materials and devices with higher set pressure or vacuum 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
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”.
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