
Fig. IV-0211 · Fire Protection
OS&Y Resilient Seated Gate Valve — Flanged
Rising-stem fire protection gate valve, flanged ends
ULULCFMVdSNSF-61
Outside-screw-and-yoke resilient seated gate valve for fire protection mains and risers. The visible stem position gives immediate open/shut indication, meeting NFPA supervision requirements when fitted with a tamper switch.
Products are supplied to the stated API / ISO / ASME / AWWA standards from qualified manufacturers for projects in Saudi Arabia, including Dammam, Jubail, Yanbu, Riyadh, Jeddah and the Eastern Province. Certifications, monograms and listings are those of the manufacturing plant and are provided as specified in the purchase order.
Technical specifications
| Figure number | IV-0211 |
|---|---|
| Size range | 2″ – 24″ (DN50 – DN600) |
| Pressure rating | 300 psi (21 bar) |
| End connections | Flanged × Flanged (ASME B16.5 / EN 1092) |
| Typical materials | As specified on the project datasheet |
| Design standards | AWWA C515 · ASME B16.10 · NFPA 13 |
| Certifications (per manufacturer) | UL · ULC · FM · VdS · NSF-61 |
Key features
- Ductile iron body, fusion-bonded epoxy coated inside & out
- Fully encapsulated EPDM wedge — bubble-tight shutoff
- Three O-ring stem seals, replaceable under pressure
- Compatible with all major indicator posts



