861100-00228 Gas pressure regulator with built-SAV RS251 / 050/275 / 42.5 / MD-R R / G Type: RS 251 Connection: DN 50 PN 16 Housing: silumin Inlet pressure min .: 1 bar Inlet pressure max .: 4 bar Output pressure min .: 150 mbar Output pressure max .: 300 mbar Flow min .: 50 Nm³ / h Flow max .: 600 Nm³ / h Type of gas: Natural gas Valve: 42.5 mm Control cone: R SAV-trip min .: 50 mbar SSV release max .: 450 mbar Main membrane: bracketing Rollmem. 275 Intermediate diaphragm: bracketing Rollmem. SAV diaphr by Medenus
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The Medenus Type RS 251 gas pressure regulator with a built-in safety shut-off valve (SAV) is engineered for natural gas applications. Featuring a DN 50 PN 16 aluminum alloy housing with a face-to-face length of 310 mm, this unit operates with a left-to-right flow direction and handles a maximum permissible pressure PS of 8 bar. It is designed for an inlet pressure range of 2 bar to 3 bar, controlling an output pressure range from 320 mbar to 320 mbar. Equipped with a 42.5 mm nozzle and a control unit 275, it delivers a flow rate capacity from 157 Nm3 per hour up to 1100 Nm3 per hour, with a KG-value of 1250 m3 per hour per bar for natural gas. The integrated SAV provides class A safety operation, featuring an upper response pressure range up to 480 mbar and a lower response pressure from 50 mbar. The regulator is built to function within a temperature range of -20°C to +60°C.
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Characteristics
| Manufacturer | Medenus |
|---|---|
| Part number | 861100-00228 |
| Inner Code | 3338465 |
| Custom Code | 84811099 |
Technical specification
| Product type | Gas pressure regulator with built-in SAV |
|---|---|
| Type | RS 251 |
| Connection | DN 50 PN 16 |
| Flow direction | left to right |
| Max. permissible pressure PS | 8 bar |
| Design | IS |
| Temperature | -20°C - +60°C |
| Housing material | Aluminium alloy |
| Control unit | 275 |
| Nozzle | 42.5 mm |
| KG-value | 1250 m3/(h*bar) (Erdgas) |
| Overall length | 310 mm |
| Inlet pressure Pu min. | 2 bar |
| Inlet pressure Pu max. | 3 bar |
| Outlet pressure Pds min. | 320 mbar |
| Outlet pressure Pds max. | 320 mbar |
| Specific control range Wds | 255-493 mbar |
| Flow Q min. | 157 Nm3/h |
| Flow Q max. | 1100 Nm3/h |
| Gas type | Natural gas |
| SAV functional class | A |
| SAV tripping min. Pdsu | 50 mbar |
| Specific control range Wdsu | 50-80 mbar |
| SAV tripping max. Pdso | 480 mbar |
| Specific control range Wdso | 440-730 mbar |