Features
Function and Description
Highly Developed Vacuum Relief Valve
The PROTEGO® Valve V/KSM is a state-of-the-art 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 made of high-grade synthetic material. It is 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. to relieve vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. in tanks, containers, 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 prevents the in-breathing of air until reaching 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. . 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 is fully open within 10% pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. increase. 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 Lift Lift is the actual travel of the valve pallet from the main valve out of the closed position. Type” technology allows the valve to be set at just 10% below the maximum allowable working vacuum (MAWV) of the tank and still safely vent the required mass flow.
Advanced Manufacturing Technology
Due to our 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 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. that is far superior to the conventional standard. This feature is achieved by valve seats made of high-performance plastics and a high grade PTFE seal. After the vacuum is released, the valve re-seats and provides a tight seal. The optimized fluid dynamic design of the valve body and valve pallet Valve pallet Valve pallet is the generic term for the assembly that rests on the valve seat. is a result of many years of research, resulting in stable operation of the valve pallet, optimized performance, and reduced product Product Includes equipment, protective systems, devices, components and combinations of these. losses.
Dimensions
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 | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" |
| a | 57 / 2.24 | 77 / 3.03 | 87 / 3.43 | 126 / 4.96 | 180 / 7.09 |
| a | (115 / 4.53)* | (146 / 5.75)* | (175 / 6.89)* | ||
| b | 259 / 10.20 | 376 / 14.80 | 373 / 14.69 | 460 / 18.11 | 469 / 18.46 |
| b | (338 / 13.31)* | (427 / 16.81)* | (437 / 17.20)* | ||
| c | 150 / 5.91 | 200 / 7.87 | 225 / 8.86 | 280 / 11.02 | 350 / 13.78 |
| d | 180 / 7.09 | 250 / 9.84 | 300 / 11.81 | 350 / 13.78 | 560 / 22.05 |
| d | (405 / 15.94)* | (500 / 19.68)* |
Dimensions in mm / inches
* Dimensions in brackets only for PVDF
Material selection for housing
| Design | A | B | C |
| 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. | PE | PP | PVDF |
| Valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. | PE | PP | PVDF |
| Sealing | FPM | FPM | FPM |
| Valve pallet | A, C, D | B, C, D | C, D |
Special materials upon request
Material selection for vacuum valve pallet
| 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
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 F.F. |
other types upon request
Design Types and Specifications
The valve pallet is weight-loaded, and the highest pressure levels are only attained with metal discs.Additional special devices available upon request.
Settings
| Vacuum: | -6.0 mbar | -100 mbar |
| -2.4 inch W.C. | -40 inch W.C. | |
| -4.0 mbar | -100 mbar | |
| -1.6 inch W.C. | -40 inch W.C. | |
| -4.5 mbar | -100 mbar | |
| -1.8 inch W.C. | -40 inch W.C. |
Higher pressure 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”.
