Y Type Strainer 900LBS - ANSI Class 900, RTJ RF BW Ends, 2 inch to 24 inch
Tengs Valve supplies high-quality Y Type Strainers for ANSI Class 900LBS, manufactured with bolted cover design and available with flanged (RF), RTJ or Butt Weld (BW) ends. Sizes range from 2″ to 24″ (DN50 to DN600). Body materials include cast carbon steel (WCB, LCB, LCC), stainless steel (CF8, CF8M, CF3, CF3M), and duplex stainless steel (A995-4A, 5A). Screen materials are SS304, SS316, 2205 and 2507 duplex stainless steel with mesh sizes from 10 to 400 mesh. Ideal for very high-pressure water, gas, oil, and steam service in wellhead, gas injection, hydroprocessing and high-pressure process piping systems.
Specifications For Y Type Strainer 900LBS
• Sizes: 2″ to 24″ (DN50 to DN600)
• Pressure Rating: ANSI 900LBS / Class 900
• Suitable Medium: Water, gas, oil, steam, etc.
• Body Materials: WCB, LCB, LCC, CF8, CF8M, CF3, CF3M, A995-4A, 5A, etc.
• Screen Materials: Stainless Steel (304SS, 316SS, 2205, 2507)
• Mesh Sizes: 10, 20, 40, 60, 100, 200, 400 mesh, etc.
• End Connections: Butt Weld (BW), Flanged (RF), Ring Joint (RTJ)
• Cover Type: Bolted Cover (B.C.)
• Design Standard: API 598, ASME B16.34, ASME B16.5, ASME B16.20
• Temperature Range: -29°C to 425°C (-20°F to 800°F)
✓ Class 900 Y strainer provides very high-pressure filtration for wellhead, gas injection and hydroprocessing service
Y Type Strainer Pressure Class Comparison: Class 600 vs 900 vs 1500
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| Class 600 | 102 | 1,480 | High-pressure process, refinery, power plant |
| Class 900 | 153 | 2,220 | Wellhead, gas injection, hydroprocessing, high-pressure steam |
| Class 1500 | 260 | 3,750 | Wellhead, gas injection, very high-pressure process |
Reference: ASME B16.34. Class 900 is the standard choice for wellhead and gas injection service. Class 600 is more economical for high-pressure process piping; Class 1500 is selected for the highest pressure requirements.
Class 900 Y Type Strainer Common Material Selection
| Body Material | Standard | Key Characteristic | Typical Application |
|---|---|---|---|
| A216-WCB | ASTM A216 | High-strength carbon steel for Class 900 | Wellhead, gas injection, high-pressure steam and oil |
| A352-LCB / LCC | ASTM A352 | Low-temperature carbon steel | Cold climate and low-temperature service down to -46°C |
| A351-CF8M (SS316) | ASTM A351 | Mo-bearing, very high-pressure corrosion resistance | Sour gas, hydroprocessing, chemical high-pressure service |
| A351-CF3M | ASTM A351 | Low-carbon, weld-friendly | Welded very high-pressure construction, corrosive service |
| A995 4A / 5A | ASTM A995 | Duplex stainless, high-chloride and sour resistance | Seawater injection, wellhead, offshore, sour high-pressure service |
Reference: For Class 900 very high-pressure service, WCB is standard for non-corrosive steam, oil and gas. CF8M and A995 duplex 4A/5A are selected for sour and corrosive high-pressure media. Screen materials 2205 and 2507 duplex are available for high-chloride wellhead and injection service.
Y Type Strainer 900LBS Mesh Selection Reference
| Mesh Size | Aperture (mm) | Application Medium |
|---|---|---|
| 50 mesh | 0.30 | Very high-pressure steam, wellhead gas service |
| 80 mesh | 0.18 | Gas injection, hydroprocessing filtration |
| 120 mesh | 0.125 | Sour gas and high-pressure chemical filtration |
| 150 mesh | 0.10 | Precision filtration, very high-pressure instrument protection |
| 200 mesh | 0.074 | Ultra-fine filtration, wellhead and injection precision service |
Reference: Class 900 very high-pressure Y strainers are typically supplied with 50–120 mesh SS or duplex screens. Finer mesh 150–200 mesh is available for precision wellhead service; coarser mesh 10–40 mesh is available for large debris removal on request.
Y Type Strainer 900LBS Main Parts and Material List
| No. | Part Name | Material |
|---|---|---|
| 01 | Body | A216-WCB, A352-LCB/LCC, A351-CF8, A351-CF3, A351-CF8M, A351-CF3M, A995 4A/5A |
| 02 | Screen | 304SS, 316SS, 2205, 2507 |
| 03 | Gasket | Graphite + Stainless Steel (304SS, 316SS); RTJ ring joint gasket optional |
| 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: API 598, ASME B16.34, ASME B16.20. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Dimensions for 900LBS Y Type Strainer
Reference: ASME B16.5, ASME B16.10, ASME B16.20. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Y Type Strainer 900LBS Applications
• Oil and gas wellhead: wellhead flow lines, choke and kill manifolds, and high-pressure gas injection systems.
• Hydroprocessing and refining: hydrocracker, hydrotreater, and high-pressure hydrogen service requiring RTJ or BW leak-tight connections.
• Very high-pressure steam: supercritical boiler and turbine protection lines in power plants.
• Sour gas and chemical service: H2S-containing gas and corrosive high-pressure media filtration with CF8M or A995 duplex body.
• Offshore and subsea: seawater injection and offshore very high-pressure service with A995 4A / 5A body and 2205 / 2507 screen.
• High-pressure gas transmission: natural gas and process gas pipelines requiring RTJ ring joint sealing for zero leakage.
FAQ - Y Type Strainer 900LBS
Q1: What is the pressure rating of Class 900 Y type strainer?
A: Class 900 Y type strainer has a design pressure of 153 bar (2,220 psi) at ambient temperature, in accordance with ASME B16.34. It is the standard choice for wellhead, gas injection, and hydroprocessing service. For higher pressure, Class 1500 and 2500 are also available; for lower pressure, Class 600 is more economical for refinery and process piping.
Q2: Why is RTJ end connection preferred for Class 900 Y strainers?
A: At Class 900 pressure rating, the sealing reliability of the connection becomes critical. RTJ (Ring Joint) ends use a metal ring gasket that is compressed into a groove between the flange faces, providing a leak-tight seal under very high pressure and temperature. RF flanged ends can also be used for general high-pressure service, and BW ends are preferred for buried or permanent pipelines. For wellhead and gas injection, RTJ is the industry standard.
Q3: What screen materials are recommended for Class 900 wellhead service?
A: For wellhead and gas injection service, 2205 and 2507 duplex stainless steel screens are recommended. 2205 offers excellent chloride stress corrosion resistance and is suitable for most wellhead service. 2507 (super duplex) offers higher strength and corrosion resistance for sour gas (H2S-containing) and seawater injection service. SS304 and SS316 screens are available for non-corrosive high-pressure service.
Q4: What body materials are recommended for Class 900 Y strainers?
A: For general high-pressure steam, oil, and gas service, WCB carbon steel is the most economical choice. For low-temperature service down to -46°C, LCB or LCC is recommended. For sour gas and corrosive high-pressure media, CF8M (SS316) is preferred. For seawater injection, wellhead, and offshore service, A995 duplex stainless steel (4A or 5A) offers the best chloride and sour resistance under very high pressure.
Q5: What is the maximum size available for Class 900 Y type strainers?
A: Class 900 Y type strainers are available from 2 inch to 24 inch (DN50 to DN600). The maximum size is smaller than lower pressure classes because Class 900 is used for very high-pressure service where large diameter components become uneconomical. For sizes above 24 inch, a custom fabricated design can be evaluated; please contact us with your specific requirement.
Q6: How do I maintain a Class 900 very high-pressure Y strainer?
A: Class 900 Y strainer maintenance requires special attention: isolate the strainer, depressurize completely, and confirm zero pressure. Remove the cover bolts (bolted cover design) following the correct tightening sequence in reverse. Take out the screen, clean or replace it. Install a new gasket (graphite or RTJ ring) and retorque bolts to the specified torque value in a star pattern. The Y-shaped body allows screen removal without disconnecting the pipeline. For continuous very high-pressure operation, a bypass line or dual-strainer configuration is strongly recommended.
Request a Quote for Y Type Strainer 900LBS
Send us your size, pressure rating, material, end connection (RF / RTJ / BW), 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
Email Us Now
Y Strainer Dimension Details
Related Strainer Pages
• Y Strainer - Y Strainer (Wye Strainer) Main Page
• Industrial Y Type Strainer - Industrial Y Type Strainer Detailed Specification
• Basket Strainer - Industrial Basket Type Strainer Series
• T Strainer - Industrial T Type Strainer Series
• Industrial Check Valve - Cast Steel Check Valve Main Page
