Y Strainer (Wye Strainer) - Class 150 to 1500, 1/2 inch to 36 inch
China Industrial Y Strainer (Wye Strainer) Supplier, Exporter, Manufacturer. The Y strainer is a pipeline filtration device that removes small impurities from liquids, gases, steam and pipe systems using a perforated screen or mesh. Its compact Y-shaped body protects pumps, instruments and other equipment from debris damage. Tengs Valve offers cast and welded construction Y strainers with flanged or BW ends, in sizes 1/2 inch to 36 inch, pressure ratings ANSI Class 150Lb to 1500Lb and DIN PN16 to PN100.
Bodies are available in carbon steel, stainless steel, duplex stainless steel, bronze, cast iron and ductile iron. Perforated screens and mesh are offered in SS304, SS316, UNS 2205 and UNS 2507. Standard filtration accuracy ranges from 18 to 480 mesh depending on the medium.
Y Strainer Specifications
• Design Standard: API, ASME B16.34, DIN standards
• Pressure Ratings: ANSI Class 150Lb, 300Lb, 600Lb, 900Lb, 1500Lb; DIN PN16, PN25, PN40, PN64, PN100
• Size Range: 1/2 inch to 36 inch (DN15 to DN900)
• End Connections: Flanged (RF, RTJ) per ANSI B16.5, Butt Weld (BW) per ANSI B16.25
• Body Construction: Cast Type (standard) / Welded Type (available)
• Body Materials: A216-WCB, A351-CF8, A351-CF3, A351-CF8M, A351-CF3M, Bronze, Cast Iron, Ductile Iron
• Screen Materials: SS304, SS316, SS304L, SS316L, UNS 2205, UNS 2507
• Gasket Material: Graphite + Stainless Steel (304SS, 316SS)
• Filtration Accuracy: 18–480 mesh (customizable)
• Drain Plug: Standard, for online blowdown cleaning
• Temperature Range: -29°C to 425°C (-20°F to 800°F)
✓ Y-shaped body provides lower pressure drop and easier screen access than T-type strainers of the same size
Y Strainer Filtration Accuracy: Mesh to Micron Conversion
| Mesh (目) | Micron (μm) | Millimeter (mm) | Typical Application |
|---|---|---|---|
| 10 | 2,000 | 2.00 | Coarse filtration, large debris removal |
| 20 | 841 | 0.84 | Water network standard (18–30 mesh) |
| 40 | 400 | 0.40 | Steam and gas service (40–100 mesh) |
| 100 | 150 | 0.15 | Oil and fine filtration (100–300 mesh) |
| 200 | 74 | 0.074 | Fine chemical and hydraulic service |
| 300 | 48 | 0.048 | Precision oil filtration |
| 480 | 25 | 0.025 | Ultra-fine filtration, special service |
Reference: Mesh-to-micron conversion is approximate. Actual retention size may vary by screen type (perforated vs woven mesh) and manufacturer. Custom mesh sizes available on request. Water 18–30 mesh, gas 40–100 mesh, oil 100–480 mesh per industry practice.
Y Strainer Screen Material Comparison
| Screen Material | Corrosion Resistance | Temperature Limit | Best Application |
|---|---|---|---|
| SS304 / SS304L | Good general corrosion resistance | Up to 425°C | Water, steam, general industrial service |
| SS316 / SS316L | Excellent, Mo-bearing for chlorides | Up to 425°C | Chemical, offshore, marine, corrosive media |
| UNS 2205 | Superior, high-chloride and pitting resistance | Up to 300°C | Seawater, desalination, sour service |
| UNS 2507 | Excellent, super duplex for severe service | Up to 300°C | High-chloride, offshore, aggressive chemical |
Reference: Screen material selection depends on fluid corrosiveness, operating temperature and required filtration accuracy. Contact us for material compatibility guidance.
Y (Wye) Strainer Main Parts and Material List
| No. | Part Name | Material |
|---|---|---|
| 01 | Body | A216-WCB, A351-CF8, A351-CF3, A351-CF8M, A351-CF3M |
| 02 | Screen | 304SS, 316SS, 304LSS, 316LSS, UNS 2205, UNS 2507 |
| 03 | Gasket | Graphite + Stainless Steel (304SS, 316SS) |
| 04 | Cover | A105/WCB, A182-F304, A182-F304L, A182-F316, A182-F316L |
| 05 | Bolt | A193 B7, A193 B8, A193 B8M |
| 06 | Nut | A194 2H, A194 8, A194 8M |
| 07 | Drain Plug | A193 B7, A193 B8, A193 B8M |
Reference: Material list varies by body material selection. Contact us for confirmed material certificate.
Y Type vs Basket Type vs T Type Strainer Comparison
| Parameter | Y Type Strainer | Basket Type Strainer | T Type Strainer |
|---|---|---|---|
| Body Shape | Y-shaped (angled) | Cylindrical basket | T-shaped (straight through) |
| Flow Direction | 45° angled branch | Straight through with basket | Straight through with side branch |
| Screen Area | Smaller (compact) | Largest (high dirt capacity) | Medium |
| Pressure Drop | Higher | Low | Low |
| Size Range | 1/2″ to 36″ | 2″ to 24″ | 2″ to 36″ |
| Typical Application | Steam, gas, small pipeline, instrument | Large pipeline, high dirt load | Large pipeline, horizontal installation |
Reference: Y type is preferred for steam, gas, and small-bore high-pressure service; Basket type is preferred for large flow and high dirt capacity; T type is preferred for large pipeline with horizontal installation.
Y Strainer (Wye Strainer) Applications
• Water Treatment: Pump suction protection, water network filtration, irrigation systems, cooling water lines.
• Oil and Gas: Wellhead control panels, fuel lines, hydraulic systems, chemical injection lines.
• Power Generation: Steam lines, condensate systems, boiler feed water, turbine protection.
• Chemical Processing: Reagent feed lines, corrosive fluid filtration, catalyst protection.
• Petrochemical: Hydrocarbon processing, refinery piping, compressor protection.
• HVAC and Building Services: Chilled water, heating systems, steam distribution.
FAQ - Y Strainer (Wye Strainer)
Q1: What is the difference between a Y strainer and a basket strainer?
A: Y strainer has a Y-shaped body with the screen positioned at an angle to the flow, resulting in a compact design with lower pressure drop and easy online cleaning via drain plug. Basket strainer has a larger cylindrical body with a basket-shaped screen that provides higher dirt-holding capacity but takes up more space. Y strainers are preferred for space-limited installations, steam and gas service, and continuous processes; basket strainers are preferred for high-debris applications requiring larger dirt capacity. For T type, see the T strainer page.
Q2: How do I choose the right mesh size for my Y strainer?
A: Mesh selection depends on the medium and the particle size to be removed. Industry practice: water service uses 18–30 mesh, gas service uses 40–100 mesh, and oil service uses 100–480 mesh. For pump protection, select a mesh that captures particles at least 1/3 the size of the smallest critical clearance in downstream equipment. For finer filtration in instrument lines, 200–400 mesh can be specified. Contact us for mesh selection guidance based on your specific application.
Q3: What body materials are available for Y strainers?
A: Standard body materials include carbon steel (A216-WCB), stainless steel (A351-CF8, CF3, CF8M, CF3M), bronze, cast iron and ductile iron. Stainless steel bodies (CF8M/CF3M) are recommended for corrosive media; carbon steel (WCB) for general water, steam and oil service. Duplex stainless steel bodies (UNS 2205 / UNS 2507) are available for high-chloride, seawater and offshore applications. Material selection depends on fluid corrosiveness and operating temperature.
Q4: How is the Y strainer cleaned and maintained?
A: Y strainers feature a drain plug on the cover for online blowdown cleaning — open the drain plug to flush accumulated debris without disassembling the strainer. For thorough cleaning, isolate the strainer, depressurize, remove the cover bolts, extract the screen, clean or replace it, and reassemble. The Y-shaped body allows screen removal without disconnecting the pipeline. For continuous operation, a bypass line or dual-strainer configuration is recommended. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5–1.0 bar.
Q5: What end connections are available for Y strainers?
A: We offer flanged ends (RF, RTJ) per ANSI B16.5 and Butt Weld (BW) per ANSI B16.25. Flanged ends allow easy installation and removal for maintenance; BW ends provide permanent leak-tight connection for high-pressure service. Threaded (NPT) and Socket Weld (SW) ends are available on request for smaller sizes. The choice depends on piping specification, pressure class and installation requirements.
Q6: Where can I find detailed dimensions for each pressure class?
A: Detailed dimensions for each pressure class are available on our sub-pages. See the Dimension Details section below for Class 150, 300, 600, 900, 1500 and DIN PN16–PN40 Y strainer pages. Each sub-page includes full dimension tables, material lists and mesh selection references. Contact us for confirmed drawings based on your specific size and pressure class.
Request a Quote for Y Strainer (Wye Strainer)
Send us your size, pressure rating, body material, end connection, mesh size, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
Website: Request a Quote Online
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Y Strainer Dimension Details
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