Características
Función y descripción
Highly Developed Pressure Relief Valve
The ER/V-F Type PROTEGO® valve is a highly developed emergency pressure relief valve Pressure-relief valve Valve designed to open and relieve excess pressure and to reclose and prevent the further flow of fluid after normal conditions have been restored. with high flow capacity. 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 emergency pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. relief for storage tanks, containers, silos, 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. . It offers reliable protection against overpressure Overpressure Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure. and prevents excessive product Product Includes equipment, protective systems, devices, components and combinations of these. vapor loss close to the set pressure Set pressure Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. . It is designed to release particularly large amounts to prevent the vessel Vessel Container or structural envelope in which materials are processed, treated or stored. from rupturing in an emergency case. The springloading allows for higher set pressures than those with the ER-V-LP, ER/V, or ER/VH.
Full Lift Technology
The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to reach full lift Lift Lift is the actual travel of the valve pallet from the main valve out of the closed position. . 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 of the tank and still safely vent the required mass flow.
Advanced Manufacturing Technology
Due to the highly developed manufacturing technology, the tank pressure Tank pressure Tank pressure is the pressure within a tank. 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-grade steel with an inserted O-ring O-ring O-rings are ring-shaped gaskets with a round, o-shaped cross section 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. , a precisely lapped valve pallet Valve pallet Valve pallet is the generic term for the assembly that rests on the valve seat. , and a sturdy 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. design. After the excess pressure is released, the valve re-seats and provides a tight seal again.
Dimensiones
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
| DN | 200 / 8" | 250 / 10" | 300 / 12" | 350 / 14" | 400 / 16" | 450 / 18" | 500 / 20" | 600 / 24" | 700 / 28" |
| a | 465 / 18.31 | 550 / 21.65 | 650 / 25.59 | 650 / 25.59 | 800 / 31.50 | 800 / 31.50 | 1000 / 39.37 | 1000 / 39.37 | 1200 / 47.24 |
| b | 860 / 33.86 | 860 / 33.86 | 1170 / 46.06 | 1170 / 46.06 | 1150 / 45.28 | 1175 / 46.26 | 1430 / 56.30 | 1425 / 56.10 | 1690 / 66.54 |
| (≤370 mbar) | (≤240 mbar) | (≤240 mbar) | (≤270 mbar) | (≤220 mbar) | (≤170 mbar) | (≤130 mbar) | (≤140 mbar) | (≤140 mbar) | |
| (≤148 inchW.C.) | (≤96 inchW.C.) | (≤96 inchW.C.) | (≤108 inchW.C.) | (≤88 inchW.C.) | (≤68 inchW.C.) | (≤52 inchW.C.) | (≤56 inchW.C.) | (≤56 inchW.C.) | |
| b | 980 / 38.58 | 980 / 38.58 | 1490 / 58.66 | 1490 / 58.66 | 1490 / 58.66 | 1515 / 59.65 | 1660 / 65.35 | 1655 / 65.16 | 1910 / 75.20 |
| (>370 mbar) | (>240 mbar) | (>240 mbar) | (>270 mbar) | (>220 mbar) | (>170 mbar) | (>130 mbar) | (>140 mbar) | (>140 mbar) | |
| (>148 inchW.C.) | (≤96 inchW.C.) | (≤96 inchW.C.) | (≤108 inchW.C.) | (≤88 inchW.C.) | (≤68 inchW.C.) | (≤52 inchW.C.) | (≤56 inchW.C.) | (≤56 inchW.C.) |
Dimensiones en mm / pulgadas
Selección de materiales
| Design | A | B |
| Housing | 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 |
| Valve pallet | Stainless Steel or Steel-Stainless Steel | Stainless Steel |
| Sealing | FPM | FPM |
| Weight | Steel | Stainless Steel |
Special materials 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 spring Spring A spring is a spiral of wire which returns to its original shape after it is pressed or pulled. -loaded. Lower pressures are achieved with the ER-V-LP, ER/V and ER/VH designs.Additional special devices available upon request.
Settings
| >+60 mbar | +500 mbar | |
| >+24 inch W.C. | +200 inch W.C. |
Higher pressure settings, upon request. Lower pressure settings, see types ER-V-LP, ER/V and ER/VH.
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”.
