
Features
10% Technology
Extreme Tightness
Optimum Pressure Maintenance
For Over- and Underpressure
Compact Design
High Flow Capacity
Non-Corrosive
Weight Reduction
Different Plastics

Pressure or Vacuum Relief Valve in Corner Design Made of Plastic

Full Lift Technology
Advanced Manufacturing Technology
Dimensions
To select the nominal size Diámetro nominal 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), please use the flow capacity chart on the following page
| DN | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" |
| a | 200 / 7.87 | 245 / 9.65 | 300 / 11.81 | 370 / 14.57 | 625 / 24.61 (650 / 25.59)* |
| b | 376 / 14.80 | 521 / 20.51 | 563 / 22.17 (523 / 20.59)* | 687 / 27.05 (651 / 25.63)* | 914 / 35.98 (912 / 35.91)* |
| 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 (405 / 15.94)* | 560 / 22.05 (500 / 19.68)* |
Dimensions in mm / inches
* Dimensions in brackets only for PVDF
Material selection for housing
| Design | A | B | C |
| Housing | PE | PP | PVDF |
| Valve seat | PE | PP | PVDF |
| Gasket | FPM | FPM | FPM |
| Valve pallet | A, C, D | B, C, D | C, D |
Special materials upon request
Material selection for 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 |
Special materials and devices with higher set pressure or vacuum are available upon request
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 F.F. |
other connections 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”.


Tank connection for pressure relief function

Tank connection for vacuum relief function
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