SD/BS-H
Pressure Relief Valvein heat jacketed design

Features
10% Technology
Heating Jackets
Heating Medium Temperature
Heatable Valve Cover Available
Sturdy Housing Design
Used in Explosion Hazardous Areas
Extreme Tightness
Optimal Pressure Maintenance
Flow Capacity
Guided Valve Pallet

Highly Developed Pressure 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
| DN1 | DN2 | a | b | b | c | d | d | e |
| bis 30 mbar | > 30 mbar | bis 30 mbar | > 30 mbar | |||||
| 80 / 3" | 15 / ½" | 325 / 12.80 | 400 / 15.75 | 515 / 20.28 | 70 / 2.76 | 250 / 9.84 | 390 / 15.35 | 250 / 9.84 |
| 100 / 4" | 15 / ½" | 325 / 12.80 | 400 / 15.75 | 505 / 19.88 | 60 / 2.36 | 250 / 9.84 | 380 / 14.96 | 250 / 9.84 |
| 150 / 6" | 15 / ½" | 405 / 15.94 | 460 / 18.11 | 595 / 23.43 | 60 / 2.36 | 315 / 12.40 | 470 / 18.50 | 290 / 11.42 |
| 200 / 8" | 15 / ½" | 510 / 20.08 | 470 / 18.50 | 575 / 22.64 | 65 / 2.56 | 305 / 12.01 | 445 / 17.52 | 340 / 13.39 |
Dimensions in mm / inches
* also available with special flange DN 50 / 2''
Material selection for housing
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Heating Jacket | Steel | Stainless Steel |
| Valve Seat | Stainless Steel | Stainless Steel |
Special materials upon request
Material selection for pressure valve pallet
| Design | A | B | C |
| Pressure range [mbar] [inch W.C.] | +5,0 up to +25 +2 up to +10 | >+10 up to +30 >+4 up to +12 | >+30 up to +210 >+12 up to +84 |
| Valve pallet | Aluminium | Stainless Steel | Stainless Steel |
| Valve pallet hood | Stainless Steel | Stainless Steel | - |
| Sealing | Metal to Metal | Metal to Metal | Metal to Metal |
Special materials and devices with higher set pressure or vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. are available 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
The valve pallet is weight-loaded. Starting at a set pressure of 30 mbar, a vane guide is also used.Additional special devices available upon request.
Settings
| Pressure: | +5.0 mbar | +210 mbar |
| +2.0 inch W.C. | +84 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”.








