Strainer 'Y' Type - ASME | Valvosider

Valvosider Y-Type Strainers to ASME Standards

Valvosider ASME Y-strainers are flanged, in-line filters with bolted covers and replaceable screens. They are used to protect pumps, control valves, turbines, flow meters, steam traps, and heat exchangers from pipeline debris. Selection is based on ASME piping class, required flow rate, allowable Δp, mesh size, and material compatibility with process media.

Pressure Classes and Sizes

• Fig. 490: ASME Class 150, 2″–24″
• Fig. 491: ASME Class 300, 2″–24″
• Fig. 492: ASME Class 600, 2″–24″
• Fig. 493: ASME Class 900, 2″–16″
• Fig. 494: ASME Class 1500, 2″–16″
• Fig. 495: ASME Class 2500, 2″–12″

Construction Materials

Bodies and covers are available in ASTM A216 WCB, ASTM A352 LCB, ASTM A217 WC6/C5/C12, and stainless grades ASTM A351 CF8, CF8C, CF8M, CF3M. Screens are supplied in F304, F321, F316, or F316L, matched to body material. Special alloys available on request for corrosive or high-temperature service.

Standards and Connections

Design and pressure ratings per ASME B16.34. Face-to-face dimensions per ASME B16.10. Flanges per ASME B16.5; butt weld ends per ASME B16.25. Testing per API 598 and EN 12266. Marking per MSS-SP-25. CE-PED compliance and EN 10204 3.1/3.2 certification available.

Sealing and Options

Class 150–1500: spiral wound gasket with stainless/graphite or RTJ. Class 2500: RTJ only. Options include drain plug, discharge valve, butt weld ends, RTJ flanges, DIN connections, and custom mesh materials.

FAQ

When is ASME selected over DIN?
When the project piping specification requires ASME class, ASME B16.5 flanges, or ASME B16.25 butt weld ends.

Can it be actuated?
No. This is a passive in-line filter, not an actuated valve.

What is checked during maintenance?
Screen cleanliness, mesh wear, cover gasket condition, flange leakage, and differential pressure increase.