Fabricated Simplex Basket Strainer DN900 PN16 Class 150LB - A234 WPB A106 Carbon Steel
Tengs Valve supplies high-quality Industrial Fabricated Carbon Steel Simplex Basket Strainers in DN900 (36 inch) with welded / fabricated body construction. Available in dual pressure ratings PN16 (DIN) and Class 150LB (ANSI), with bolted cover design and flanged RF or FF ends to ASME B16.5 / B16.47 A / EN 1092-1. Body material is carbon steel A234 WPB / A106, with A105 forged steel cover. Screens are supplied in 304SS, 316SS, 2205 duplex and 2507 super duplex with mesh sizes from 20 to 400 mesh. The fabricated body allows DN900 large diameter production with shorter lead time, ideal for large diameter main pipeline, district heating main lines, water transmission and power plant cooling water systems in water, gas, oil and steam service.
Specifications For DN900 Fabricated Simplex Basket Strainer
• Strainer Type: Welded / Fabricated Simplex Basket Strainer
• Sizes: DN900 (36 inch)
• Pressure Rating: PN16 / ANSI Class 150LB
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: Carbon Steel A234 WPB, A106
• Cover Material: A105 forged carbon steel
• Screen: Stainless Steel (304SS, 316SS, 2205, 2507)
• Mesh Size: 20, 40, 60, 80, 100, 200, 400 mesh etc.
• End Connection: Flanged RF (Raised Face), FF (Flat Face)
• Body Type: Welded / Fabricated
• Cover Type: Bolted Cover (B.C.)
• Design and Manufacture: ASME B16.34
• Inspection and Test: API 598
• End Flange Dimension: ASME B16.5, ASME B16.47 A, EN 1092-1
• BW End Dimension: ASME B16.25
• Face to Face: ASME B16.10
✓ DN900 fabricated simplex basket strainer provides large diameter filtration with dual PN16 / Class 150LB rating for main pipeline protection
Basket Strainer Standards
1. Design and Manufacture: ASME B16.34
2. Inspection and Test: API 598
3. End Flange Dimension: ASME B16.5, ASME B16.47 A, EN 1092-1
4. BW End Dimension: ASME B16.25
5. Face to Face and End to End: ASME B16.10
6. Pressure-Temperature Ratings: ASME B16.34
Fabricated Simplex Basket Strainer Structure Drawing
Main Parts and Material List For Simplex Basket Strainer
| No. | Part Name | A234 WPB (Standard) | A106 + A105 (Alternative) |
|---|---|---|---|
| 01 | Body | A234 WPB | A106 + A105 |
| 02 | Screen | SS304 / SS316 | SS304 / SS316 |
| 03 | Gasket | Graphite or Graphite + Stainless Steel (304, 304L, 316, 316L) | |
| 04 | Cover | A105 | A105 |
| 05 | Cover Bolt | A193 B7 | A193 B7 |
| 06 | Cover Nut | A194 2H | A194 2H |
| 07 | Drain Plug | A193 B7 | A193 B7 |
Reference: ASME B16.34, API 598, ASTM A234, A106, A105, A193, A194. A234 WPB is the standard wrought carbon steel fitting material; A106 + A105 is the seamless pipe and forged cover combination. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
DN900 Basket Strainer Pressure Rating: PN16 vs Class 150LB
| Standard | Pressure Rating | Design Pressure (bar) | Design Pressure (psi) | Flange Standard |
|---|---|---|---|---|
| DIN | PN16 | 16 | 232 | EN 1092-1 |
| ANSI | Class 150LB | 19.6 | 285 | ASME B16.47 A |
Reference: EN 1092-1, ASME B16.34, ASME B16.47 A. PN16 and Class 150LB are the two standard pressure ratings for DN900 fabricated basket strainer. PN16 flange is to EN 1092-1 (European standard); Class 150LB flange above 24 inch is to ASME B16.47 A (large diameter flange). Please specify the standard when requesting a quotation.
DN900 Basket Strainer Screen Selection
| Screen Material | Mesh Range | Key Characteristic | Typical Application |
|---|---|---|---|
| SS304 / SS316 | 20 - 400 mesh | General corrosion resistance, economical | Water transmission, HVAC, general industrial service |
| SS316 | 20 - 400 mesh | Mo-bearing, chloride resistance | Chemical, marine, district heating, chloride service |
| Duplex 2205 | 20 - 400 mesh | High chloride resistance, PREN ≥ 34 | Seawater, desalination, offshore service |
| Super Duplex 2507 | 20 - 400 mesh | Highest chloride and sour resistance, PREN ≥ 40 | Seawater injection, sour gas, subsea service |
Reference: ASTM A240, ASTM A789. For DN900 large diameter basket strainer, SS304 and SS316 are the standard screen materials; duplex 2205 and super duplex 2507 are selected for seawater, desalination and offshore service. Mesh size can be tailor-made to customer requirements.
DN900 Fabricated Simplex Basket Strainer Dimensions
Fabricated Simplex Basket Strainer Face-to-Face Dimension (L)
| NPS | DN | L (mm) |
|---|---|---|
| 2 | 50 | 203 |
| 2 1/2 | 65 | 216 |
| 3 | 80 | 241 |
| 4 | 100 | 292 |
| 6 | 150 | 356 |
| 8 | 200 | 495 |
| 10 | 250 | 622 |
| 12 | 300 | 699 |
| 14 | 350 | 787 |
| 16 | 400 | 864 |
| 18 | 450 | 978 |
| 20 | 500 | 978 |
| 24 | 600 | 1295 |
| 26 | 650 | 1295 |
| 28 | 700 | 1448 |
| 30 | 750 | 1524 |
| 36 | 900 | 1965 |
Reference: ASME B16.10, EN 558. Dimension L is the face-to-face length. The DN900 (36 inch) row is highlighted. Dimensions may vary by pressure rating and standard; contact us for confirmed drawing.
DN900 Fabricated Simplex Basket Strainer Applications
• Large diameter main pipeline: DN900 water transmission, oil and gas main lines requiring large filtration area and high dirt holding capacity.
• District heating main lines: supply and return main lines in European district energy networks with DN900 and PN16 flanged connection.
• Power plant cooling water: circulating water, cooling water intake and condenser protection with DN900 large diameter basket strainer.
• Water treatment and pumping station: large pump suction and discharge protection with DN900 fabricated basket strainer and 304SS / 316SS basket.
• Chemical and petrochemical: large diameter corrosive media filtration with SS304 / SS316 or duplex screen basket.
• Seawater and desalination: seawater intake and desalination main line with duplex 2205 / 2507 basket and A106 + A105 body.
FAQ - DN900 Fabricated Simplex Basket Strainer
Q1: What is a DN900 Fabricated Simplex Basket Strainer?
A: A DN900 Fabricated Simplex Basket Strainer is a single-chamber basket type pipeline filter with a welded (fabricated) carbon steel body, designed for large diameter main pipeline service in DN900 (36 inch) size. It is rated to PN16 (DIN) or Class 150LB (ANSI) and available with flanged RF or FF ends to EN 1092-1 or ASME B16.47 A. The large cylindrical basket provides high dirt holding capacity and large filtration area, protecting downstream pumps, instruments and heat exchangers in water, gas, oil and steam service.
Q2: What is the difference between PN16 and Class 150LB for DN900 basket strainer?
A: PN16 is the European DIN pressure rating with design pressure of 16 bar (232 psi) and flange dimension to EN 1092-1; Class 150LB is the ANSI pressure rating with design pressure of 19.6 bar (285 psi) and flange dimension to ASME B16.47 A for sizes above 24 inch. Both ratings are available for DN900 fabricated basket strainer and are comparable in pressure capability. The choice depends on the project standard: PN16 for European standard piping systems and Class 150LB for ASME standard piping systems. Flange dimensions and bolt patterns differ between the two standards.
Q3: Why is the body material A234 WPB and A106 for DN900 basket strainer?
A: A234 WPB is the ASTM standard wrought carbon steel fitting material, which has excellent weldability and is the standard choice for fabricated strainer body and pipe fittings. A106 is the seamless carbon steel pipe for high-temperature service, used for the cylindrical body section of large diameter basket strainer. Both materials are widely used in large diameter pipeline, district heating and power plant cooling water systems. For large diameter basket strainer above 24 inch, the fabricated body from A234 WPB and A106 offers shorter lead time and lighter weight compared to cast body.
Q4: What end connections are available for DN900 basket strainer?
A: DN900 fabricated basket strainer is available with Flanged RF (Raised Face) or FF (Flat Face) ends. For PN16 standard, the flange is to EN 1092-1 with FF or RF face. For Class 150LB standard, the flange above 24 inch is to ASME B16.47 A with RF face. Butt Weld (BW) ends to ASME B16.25 are also available on request for permanent connection. Face-to-face dimension follows ASME B16.10 or EN 558. Cover type is bolted cover (B.C.) as standard; davit arm design is recommended for DN900 heavy cover lifting without crane.
Q5: What screen and mesh sizes are available for DN900 basket strainer?
A: Screens are supplied in stainless steel 304SS, 316SS as standard, and duplex 2205, super duplex 2507 for seawater and offshore service. Mesh sizes include 20, 40, 60, 80, 100, 200 and 400 mesh, tailor-made to customer requirements. For DN900 large diameter main pipeline, 20 to 40 mesh is common for water transmission and district heating; 60 to 100 mesh is specified for pump protection and fine chemical service. The perforated plate and wire mesh can be combined for high dirt load service. Please specify the mesh size when requesting a quotation.
Q6: How do I maintain a DN900 fabricated basket strainer?
A: Maintenance is simple: isolate the strainer, depressurize, remove the cover bolts (bolted cover design), take out the basket, clean or replace the screen and mesh, install a new gasket, and reassemble. For DN900 heavy cover, a davit arm design is strongly recommended to lift the cover without crane. The bolted cover design allows basket removal without disconnecting the pipeline. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar. For continuous operation without pipeline shutdown, a duplex basket strainer configuration is recommended.
Request a Quote for DN900 Fabricated Simplex Basket Strainer
Send us your DN size (DN900 standard), pressure rating (PN16 or Class 150LB), body material (A234 WPB or A106 + A105), end connection (RF / FF / BW), screen material (304SS / 316SS / 2205 / 2507), mesh size, cover type (Bolted or Davit Arm), 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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