Y Pattern Strainer: BS 1873, ASME B16.34
Key Specifications / Features
Y Strainer: BS 1873, ASME B16.34, Bolted Bonnet, BW, Flanged end, ASTM 182 F304, 316 Screen, Class 150 - 600, 1/2 - 20 inch, or as customer requried.
Detail Information
Valve Type: Y Pattern Strainer Valve.
Valve Size: 1/2” - 20”.
Valve Pressure Rating: Class 150 – 600.
Standards:
| Design & Manufacture | ASME B 16.34 |
| Face to Face | ANSI B16.10 |
| Flange Ends Dimension | ASME B16.5 |
| BW End Dimension | ASME B16.25 |
| Pressure-temperature Ratings | ASME B16.34 |
| Inspection & Test | API 598 |
| Part Name | Material | |||
| 1 | Body | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
| 2 | Screen | ASTM 182 F304 | ASTM A 182 F304 | ASTM A182 F316 |
| 3 | Bonnet Bolt | ASTM 193 B7 | ASTM 193 B8 | ASTM 193 B8 |
| 4 | Bonnet Nut | ASTM 194 2H | ASTM 194 8 | ASTM 194 8 |
| 5 | Gasket | Graphite+SS304 | Graphite+SS304 | Graphite+SS316 |
| 6 | Bonnet | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
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FAQs
OS&Y stands for Outside Screw and Yoke. This design places the threaded stem outside the valve body, with the yoke supporting the stem. It allows users to visually verify whether the valve is open or closed by observing the stem’s position.
OS&Y gate valves are commonly used in fire protection systems, including sprinklers, hydrants, and standpipes, due to their reliability and clear open/close indication.
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