
Features
10% Technology
Extreme Tightness
Optimal Pressure Maintenance
Guided Valve Pallet
Non-Corrosive
Aggressive, Sticky, or Polymerizing Products
Weight Reduction
Condensate Drainage
Different Plastics

Highly Developed Vacuum Relief Valve

Full Lift Technology
Advanced manufacturing technology
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 | 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”.

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