RS 903 ball valves have a three-piece body made of forged or cast carbon steel; the bodies are joined by means of bolts and nuts or screws and the sealing consists of an elastomeric O-ring.
Upon request, the fire-safe valves can be provided with graphite gaskets for the fire-safe design or with an additional sealing for emergency cases by sealant injection.
| NOMINAL DIAMETER | DN 50 ÷ DN 1200 |
|---|---|
| PRESSURE CLASS |
PN 16 ÷ PN 420 Class 150 ÷ Class 2500 |
| TIGHTNESS TEST | Acc. to ISO 5208/ API 6D/ API 598/ EN 1226 |
| PROCESS CONNECTION |
By means of flanges acc. to ASME B 16.5/ ASME B 16.47/ SR EN 1092 By means of weld ends acc. to ASME B 16.25 |
| ACTUATOR ATTACHMENT FLANGE | Acc. to ISO 5211 |
| CONSTRUCTIVE TYPE |
Acc. to ISO 14313 / ISO 10423 / API 6D / SR EN 17292 / SR EN 1983 |
| MATERIALS | Acc. to EN / ASTM / AISI |
| FACE-TO-FACE DIMENSIONS | Acc. to SR EN 558 / API 6D |
| WELDING | Acc. to SR EN ISO 15614 |
| “FIRE-SAFE” DESIGN | Acc. to API 6FA / API 607 / ISO 10497 |
| TEMPERATURE RANGE | -30°C ÷ +120°C |
| WORKING MEDIUM TEMPERATURE | -20°C ÷ +60°C (upon request, -50°C ÷ +200°C) |
| WORKING MEDIUM | Natural gases and other non-corosive fluids |
