
Features
Comprehensive Weather Protection
Virtually Maintenance-Free
Low Costs

in- and out-breathing - for use with aggressive products
Protective cover for preventing flame transmission
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), please use the flow capacity charts on the following pages
| DN | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" |
| a | 135 / 5.31 | 140 / 5.51 | 145 / 5.71 | 195 / 7.68 | 200 / 7.87 |
| b | 170 / 6.69 | 230 / 9.06 | 300 / 11.81 | 375 / 14.76 | 450 / 17.72 |
Dimensions in mm / inches
Material selection
| Design | A | B | C |
| Housing | PE | PP | PVDF |
| Weather hood | PE | PP | PVDF |
Special materials upon request
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other types upon request
Design Types and Specifications
Following designs are available:Special designs available on 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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