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The Resilient Wedge OS&Y Gate Valve-Flanged x Grooved End is designed for reliable shut-off control in fire protection, water supply, and industrial piping systems.
Combining a flanged inlet with a grooved outlet, this valve offers excellent installation flexibility while maintaining high sealing performance, pressure resistance, and long-term durability.
Its resilient wedge structure ensures tight shut-off, while the non-rising stem design makes it especially suitable for underground, limited-space, or enclosed installations.
| Size | 2''-12'' (DN 50-DN 300) | |
| Grooved OS&Y Gate Valve Main Parts and Material | Body | Ductile iron as A536, 65-45-12 |
| Bonnet | Ductile iron as A536, 65-45-12 | |
| Resilient wedge disc | Ductile iron as A536, 65-45-12 + EPDM | |
| Stem | SS304/SS304/SS420/SS431 | |
| Yoke | Ductile iron as A536, 65-45-12 | |
| Handwheel | Ductile iron as A536, 65-45-12 | |
| Flanged OS&Y Gate Valve Main Parts and Material | Body | Ductile iron as EN-GJS 450-10 |
| Bonnet | Ductile iron as EN-GJS 450-10 | |
| Resilient wedge disc | Ductile iron as EN-GJS 450-10+EPDM | |
| Stem | SS304/SS304/SS420/SS431 | |
| Yoke | Ductile iron as EN-GJS 450-10 | |
| Handwheel | Ductile iron as EN-GJS 450-10 | |
| Butterfly Valve Main Parts and Material | Body | Ductile iron as A536, 65-45-12 |
| Shaft | SS431 | |
| Disc | Ductile iron+EPDM/NBR | |
| Signal gearbox | Housing/cover: Ductile iron | |
| Worm | Carbon steel Or Ductile iron | |
| Handwheel | Ductile iron as A536, 65-45-12 | |
| Certificate | Fire valve | FM/UL |
| water valve | Wras / NSF61 | |
| Standard | fire valve | UL 262/AWWAC 515,EN11 71,UL 1091/MSS SP-67 |
| water valve | GB/BS5163,DIN3352 F4 DIN F5,JIS,KS 10K,AWWA C515,ANSI | |
| Connection | Grooved as AWWA C606, Flange as ASME B16.1,Flange as BS EN1092-2 | |
| Flange Standard | CLASS 150,PN10/16/25. Table D/E/F. 10K/16K/20K | |
| Temperature | 0℃-100℃ | |
| W.Pressure | 350psi | |
This OS&Y gate valve features a rubber-encapsulated resilient wedge, providing superior sealing performance and reducing the risk of leakage even after long-term operation.
The valve body and bonnet are designed to withstand high working pressure, while the straight-through flow path minimizes pressure loss when fully open.
The flanged × grooved end configuration allows seamless integration between traditional flanged piping systems and modern grooved piping networks, making it ideal for retrofit projects and new installations alike.
Resilient Wedge Sealing
Rubber-coated wedge provides tight shut-off, excellent sealing performance, and reliable operation under varying pressure conditions.
Dual Connection Configuration
Flanged inlet combined with grooved outlet offers flexible system integration and simplified installation.
Multiple Flange Standards Available
Compatible with ASME/ANSI Class 125 / Class 150, BS EN 1092-2 PN16, and GB/T 9113.1 standards.
Grooved End Compliance
Groove dimensions conform to ANSI/AWWA C808 or metric standards for secure coupling connections.
High Pressure Performance
Maximum working pressure: 200 PSI
Pressure performance conforms to FM 1120/1130, UL 262, and ULC/ORD C282-82
Wide Size Range
Available from 2” to 12”, suitable for various system capacities.
Epoxy Coated Protection
Internal and external epoxy coating ensures corrosion resistance, extended service life, and suitability for water-based systems.
Maintenance-Friendly Design
NPT plug on valve body with dual operating nuts allows easy operation and system inspection.
Certified Lead-Free Option Available
Lead-free design compliant with NSF/ANSI 61 and NSF/ANSI 372 requirements for potable water applications.
Fire protection systems (sprinkler and fire fighting networks)
Water supply and distribution pipelines
Underground and buried piping systems
Commercial and industrial buildings
Pump stations and mechanical rooms
Infrastructure and municipal water projects
Retrofit projects combining flanged and grooved piping systems
Factory production
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Faq
Q1: What is the difference between NRS and OS&Y gate valves?
A: An NRS gate valve has a stem that does not rise externally, making it suitable for limited-space or underground installations. An OS&Y valve has a rising stem that provides visual open/close indication.
Q2: Why choose a flanged × grooved end configuration?
A: This configuration allows easy connection between flanged pipelines and grooved systems, improving installation flexibility and reducing modification costs.
Q3: Is this valve suitable for fire protection systems?
A: Yes. The valve is designed to meet pressure and performance requirements commonly used in fire protection systems.
Q4: What pressure ratings does this valve support?
A: The valve has a maximum working pressure of 200 PSI, with pressure performance conforming to recognized fire protection and safety standards.
Q5: What temperature range can this valve operate in?
A: The valve is suitable for working temperatures from 0°C to 80°C (32°F to 178°F).
Q6: Is the valve suitable for potable water applications?
A: Yes. A certified lead-free version is available, compliant with NSF/ANSI 61 and NSF/ANSI 372 standards.
Q7: What coating options are available?
A: Standard epoxy coating is provided for corrosion protection. Additional coating options are available upon request.
