VALVER
Piston Valves
Piston Valve
Piston valve delivering reliable, maintenance-friendly shut-off and control for steam and hot-condensate service, available in flanged and screwed / socket-weld end connections.
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Documentation
Datasheet PDF · 350 KB Technical Specifications
| Type | Piston valve, steam stop valve |
|---|---|
| Nominal size | DN15–40 (½"–1½") |
| Pressure rating | Class 800 |
| Sealing | Bubble-tight, ANSI leakage class VI |
| End connection | Flanged, socket-weld, screwed, butt-weld |
| Standards | ASME B16.34 / API 602 / IBR-1950 · test API 598 |
Key Features
- Two Grafoil sealing rings, no gland, no leakage
- Belleville washers compensate for thermal expansion
- Inline maintenance, no need to remove from the line
- Large effective sealing area for long service life
- Ideal for saturated-steam isolation