Full-lift spring-loaded cast-steel safety-relief valve, flanged EN 1092-1 inlet × flanged free outlet.
Full-lift spring-loaded cast-steel safety-relief valve, flanged EN 1092-1 inlet × flanged free outlet.
| Body | cast steel 1.0619+N (GP240GH) |
| Disc / nozzle / spring guide | 316 stainless / Stellite-faced |
| Spring | alloy steel, cadmium-plated |
| Nominal size | DN25 (1") |
| Connection | EN 1092-1 flanged inlet (PN40) × free outlet PN16 |
| Set-pressure adjustment range | 0.5 to 40 bar (spring-dependent) |
| Temperature | -10 to +400 °C |
| Discharge coefficient Kd | 0.70 (gas) / 0.55 (liquid) |
| Lifting device | open-yoke lifting lever (steam variant) |
| Function certificate per EN ISO 4126-1 | |
| Material | Cast steel GP240GH / 316 SS / Stellite |
| MOQ | 1 ea |
Form-fit envelope of LESER Type 441 / 459 / 469, Niezgodka Fig. 25/26, Goetze 642 BGFL, Bopp & Reuther SiZ 1508/2508 and Crosby J series DN25 flanged steel relief valves.