Cast Steel A216-WCB 300Lb Y Strainer - 2 inch to 24 inch, DN50 to DN600, Flanged RF
Tengs Valve supplies high-quality Cast Steel A216-WCB 300Lb Y Strainers for ANSI Class 300 (CL300) service, manufactured with bolted cover design and available with flanged RF ends to ASME B16.5. Sizes range from 2 inch to 24 inch (DN50 to DN600). Body is cast carbon steel A216-WCB, with A105 forged steel cover. Screens are supplied in stainless steel 316, 316L and DSS, as perforated plate (1mm to 5mm hole) or wire mesh (SS304, SS316, 10-100 mesh). Drain connection can be plug, flange or valve. Also available to PN50 / 5.0MPa equivalent rating on request. Ideal for water, gas, oil and steam service in refinery, power plant and general industrial piping systems.
Cast Steel A216-WCB 300Lb Y Type Strainer Specification
• Strainer Type: Y Type, Y Pattern
• Sizes: 2 inch to 24 inch (DN50 to DN600)
• Pressure Rating: ANSI 300Lb / CL300 (PN50 / 5.0MPa equivalent available)
• Body Material: Cast Steel A216-WCB, A105 forged cover
• Strainer Screen: Stainless Steel 316, 316L, DSS etc.
• Perforated Hole Size: 1mm, 2mm, 3mm, 4mm, 5mm etc.
• Wire Mesh: Stainless Steel SS304, SS316
• Mesh Size: 10, 20, 40, 60, 80, 100 mesh etc.
• End Connection: Flanged RF (Raised Face)
• Cover Type: Bolted Cover, Flanged with Blind Flange
• Drain Connection: Plug, Flange, or Valve
• Design and Manufacture: ASME B16.34
• Inspection and Test: API 598
• Flange Dimension: ASME B16.5
• BW End Dimension: ASME B16.25
• Face to Face: ASME B16.10
✓ A216-WCB cast steel Y strainer provides cost-effective Class 300 filtration for refinery, power plant and general industrial piping
A216-WCB Y Strainer Pressure Rating Comparison: CL300 vs PN50 vs CL600
| Pressure Rating | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| ANSI CL300 | 51 | 740 | General hydrocarbon, process piping, medium-pressure service |
| PN50 / 5.0MPa | 50 | 725 | Equivalent metric rating for Chinese and European projects |
| ANSI CL600 | 102 | 1,480 | High-pressure process, refinery, power plant |
Reference: ASME B16.34, GB/T 12224. ANSI CL300 and PN50 / 5.0MPa are widely regarded as equivalent ratings for cast steel Y strainers in international projects.
A216-WCB Cast Steel Material Equivalent and Selection
| ASTM Grade | EN / DIN Equivalent | GB Equivalent | Key Characteristic | Typical Application |
|---|---|---|---|---|
| A216-WCB | 1.0619 / GS-C25 | ZG230-450 | Cast carbon steel, cost-effective Class 300 | Water, steam, oil, gas, refinery, power plant |
| A216-WCC | 1.0619 (higher C/Mn) | ZG270-500 | Higher strength cast carbon steel | High-pressure steam, larger diameter Class 600 service |
| A352-LCB | 1.6220 | ZG16Mn | Low-temperature carbon steel to -46°C | Cold climate, LNG, low-temperature service |
| A105 (forged) | 1.0460 / P250GH | 20# forged | Forged carbon steel for cover and small components | Cover, drain plug, small valve and strainer parts |
Reference: ASTM A216, ASTM A352, ASTM A105, EN 10213, GB/T 12229. A216-WCB is the standard cast carbon steel grade for Class 300 service; A105 is the forged counterpart used for cover and small components. Material certificate to EN 10204 3.1 is available on request.
A216-WCB Y Strainer Screen Selection: Perforated Plate vs Wire Mesh
| Screen Type | Opening Size | Material | Typical Application |
|---|---|---|---|
| Perforated Plate | 1mm, 2mm, 3mm, 4mm, 5mm | SS316, SS316L, DSS | Coarse filtration, high dirt load, large debris removal in refinery and steam lines |
| Wire Mesh | 10, 20, 40, 60, 80, 100 mesh | SS304, SS316 | Fine filtration, pump and steam trap protection, instrument lines |
| Combined Screen | Perforated plate + wire mesh | SS304, SS316, SS316L | High dirt load with fine filtration requirement, common in refinery and power plant |
Reference: ASME B16.34, API 598. Perforated plate is standard for large diameter and high dirt load service; wire mesh is used where finer filtration is required. Combined screens are commonly specified for refinery and power plant main lines.
Main Materials For A216-WCB Y Strainer
| No. | Part Name | Material |
|---|---|---|
| 01 | Body | A216-WCB |
| 02 | Screen | 304SS, 316SS, 316LSS, DSS |
| 03 | Gasket | Graphite + Stainless Steel (304SS, 316SS) |
| 04 | Cover | A105 / WCB |
| 05 | Bolt | A193 B7 (M) |
| 06 | Nut | A194 2H (M) |
| 07 | Drain Plug | Carbon Steel (A105) |
Reference: ASME B16.34, API 598. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
Cast Steel Y Strainer Standards
1. Design and Manufacture: ASME B16.34
2. Inspection and Test: API 598
3. End Connection:
• Flange Dimension to ASME B16.5
• BW End Dimension to ASME B16.25
4. Face to Face: ASME B16.10
5. Pressure-Temperature Ratings: ASME B16.34
Cast Steel A216-WCB 300Lb Y Strainer Applications
• Oil and gas process piping: refinery process lines, pump discharge and compressor protection in Class 300 service.
• Power plant steam and feedwater: medium-pressure steam mains, feedwater and condensate lines requiring ASME B16.34 design.
• Water treatment and distribution: municipal water networks, pump suction protection and irrigation systems in carbon steel body.
• HVAC and district heating: chilled water, hot water and steam distribution in commercial and industrial buildings.
• Chemical and process industry: reagent feed lines and general chemical filtration with SS316 or SS316L screen in A216-WCB body.
• General industrial piping: medium-pressure oil, gas and steam pipelines requiring a cost-effective Class 300 cast steel Y strainer.
FAQ - Cast Steel A216-WCB 300Lb Y Strainer
Q1: What is A216-WCB cast steel?
A: A216-WCB is an ASTM standard cast carbon steel grade defined in ASTM A216. WCB stands for Weldable Cast B-grade carbon steel, with a minimum tensile strength of 70 ksi (485 MPa) and a minimum yield strength of 36 ksi (250 MPa). It is the most widely used cast carbon steel for Class 150 to Class 600 flanged valves and strainers in ASME standard piping. It is equivalent to EN 1.0619 / GS-C25 in European standard and GB ZG230-450 in Chinese standard. A216-WCB is suitable for service from -29°C to 425°C.
Q2: What is the difference between perforated plate and wire mesh screens for A216-WCB Y strainers?
A: Perforated plate screens are made from a steel plate with punched holes of 1mm to 5mm, providing high mechanical strength and high dirt holding capacity. They are used for coarse filtration and large debris removal in refinery, steam and large diameter pipelines. Wire mesh screens are woven from SS304 or SS316 wire with 10 to 100 mesh openings, providing finer filtration for pump and steam trap protection. Combined screens (perforated plate + wire mesh) are often specified for refinery and power plant main lines where both high dirt load and fine filtration are required.
Q3: Is PN50 / 5.0MPa equivalent to ANSI 300Lb for this Y strainer?
A: PN50 / 5.0MPa and ANSI 300Lb are widely regarded as equivalent pressure ratings in international projects, with design pressures of 50 bar and 51 bar respectively at ambient temperature. Both are suitable for medium-pressure industrial service. For Chinese and European projects, PN50 / 5.0MPa is often specified; for ASME standard projects, ANSI 300Lb is used. Flange dimensions and bolt pattern differ between the two standards: PN50 follows DIN EN 1092-1, and ANSI 300Lb follows ASME B16.5. Please specify the standard when requesting a quotation.
Q4: Why is the cover A105 while the body is A216-WCB?
A: A216-WCB is a cast carbon steel grade suitable for the main pressure-containing body, while A105 is a forged carbon steel grade with better mechanical properties and tighter tolerances, ideal for smaller components such as the cover and drain plug. Using A105 for the cover provides better sealing surface finish and higher strength in a smaller cross-section. This combination (cast body A216-WCB + forged cover A105) is standard practice in the valve and strainer industry.
Q5: What is the size range and end connection available?
A: Cast steel A216-WCB 300Lb Y strainers are available from 2 inch to 24 inch (DN50 to DN600). End connection is Flanged RF (Raised Face) to ASME B16.5, with Butt Weld (BW) to ASME B16.25 available on request. Face-to-face dimension follows ASME B16.10. For sizes above 24 inch, a special fabricated design may be evaluated; please contact us with your specific requirement.
Q6: How do I maintain a Cast Steel A216-WCB 300Lb Y strainer?
A: A216-WCB Y strainer maintenance is simple: isolate the strainer, depressurize, remove the cover bolts (bolted cover design), take out the screen, clean or replace it, install a new gasket, 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.
Request a Quote for Cast Steel A216-WCB 300Lb Y Strainer
Send us your size (inch or DN), pressure rating (CL300 or PN50 / 5.0MPa), body material (A216-WCB), end connection (RF / BW), screen type (perforated plate or wire mesh), mesh size, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
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