T Type Strainer DN1200 48 inch 150LB - Flanged Fabricated Straight Type, A234 WPB
Tengs Valve supplies high-quality Large Diameter WPB Fabricated Industrial T Type Strainers in DN1200 (48 inch) with ANSI Class 150LB / PN16 pressure rating. The body is welded / fabricated carbon steel A106 + A105 / A516 in Straight Type, with Raised Face (RF) flanged ends to ASME B16.5 (under 24 inch) or ASME B16.47 A/B (above 24 inch) / EN 1092-1. The perforated screen is 304SS or 316SS with standard 3mm (1/8 inch) perforated hole. Cover type is bolted cover (BC) with drain plug. The large diameter T type strainer provides straight-through flow with low pressure drop, ideal for large diameter main pipeline, water transmission, power plant cooling water, oil and gas main lines and high-flow industrial service. Larger sizes are available on request.
Specifications For DN1200 (48 inch) T Type Strainer 150LB
• Strainer: Large Diameter WPB Fabricated Industrial T Type Strainer
• Sizes: DN1200 (48 inch) or larger sizes available on request
• Pressure Rating: 150LB / PN16
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: Carbon Steel A106 + A105 / A516
• Screen: Stainless Steel (304SS, 316SS)
• Perforated Hole Size: 3mm (1/8 inch) standard
• End Connection: Flanged RF (Raised Face)
• Body Type: Straight, Welded / Fabricated
• Cover Type: Bolted Cover (B.C.)
• Drain Connection: Drain Plug
• Design and Manufacture: ASME B16.34
• Inspection and Test: API 598
• Flange End Dimension: ASME B16.5, ASME B16.47 A/B, EN 1092-1
• BW End Dimension: ASME B16.25
• Face to Face: ASME B16.10
✓ DN1200 (48 inch) fabricated T type strainer provides the largest straight-through filtration for main pipeline, water transmission and power plant cooling water service
T Type Strainer Standards
1. Design and Manufacture: ASME B16.34
2. Inspection and Test: API 598
3. Flange End Dimension: ASME B16.5 (under 24 inch), ASME B16.47 A/B (above 24 inch), EN 1092-1
4. BW End Dimension: ASME B16.25
5. Face to Face / End to End: ASME B16.10
6. Pressure-Temperature Ratings: ASME B16.34
T Type Strainer Pressure Rating Comparison: Class 150 vs 300 vs 600
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| ANSI Class 150 | 19.6 | 285 | DN1200 main pipeline, water transmission, power plant cooling water, large diameter low-pressure service |
| ANSI Class 300 | 51 | 740 | Medium-pressure process piping, general hydrocarbon |
| ANSI Class 600 | 102 | 1,480 | High-pressure process, refinery, power plant |
Reference: ASME B16.34. Class 150 is the standard rating for DN1200 (48 inch) large diameter low-pressure pipeline. For sizes above 24 inch, large diameter flange to ASME B16.47 A/B is used. Class 300 and 600 are available for higher pressure requirements.
DN1200 Large Diameter Flange Standard Comparison
| Standard | Flange Type | Size Range | Typical Application |
|---|---|---|---|
| ASME B16.5 | Standard flange | Up to 24 inch | Standard pipeline service |
| ASME B16.47 A | Large diameter flange (MSS SP-44) | 26 inch to 60 inch | DN1200 (48 inch) main pipeline, water and oil transmission |
| ASME B16.47 B | Large diameter flange (API 605) | 26 inch to 60 inch | Oil and gas large diameter pipeline |
| EN 1092-1 | European standard flange | DN15 to DN4000 | European standard piping system |
Reference: ASME B16.5, ASME B16.47 A/B, EN 1092-1. For DN1200 (48 inch) large diameter T type strainer, ASME B16.47 A or B large diameter flange is used. B16.47 A (MSS SP-44) is more common for main water and oil transmission pipeline; B16.47 B (API 605) is used for oil and gas pipeline. Please specify the flange standard when requesting a quotation.
T Type Strainer Welded Body Drawing
Main Parts and Material List For DN1200 T Type Strainer
| No. | Part Name | Material |
|---|---|---|
| 1 | Screen | SS316 |
| 2 | Drain Plug | ASTM A105 |
| 3 | Gasket | Graphite + SS304 |
| 4 | Cover Nut | ASTM A194 2H |
| 5 | Cover Bolt | ASTM A193 B7 |
| 6 | Cover | ASTM A105 |
| 7 | Body | A106 + A105 / A516 |
Reference: ASME B16.34, API 598, ASTM A106, A105, A516, A193, A194. For DN1200 (48 inch) large diameter T type strainer, the body is fabricated from A106 seamless pipe with A105 forged components or A516 pressure vessel steel plate; screen is SS316 with 3mm (1/8 inch) perforated hole. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
DN1200 (48 inch) T Type Strainer Dimension Drawing
Main Dimensions For 48 inch 150LB T Type Strainer
| Size | L (mm) | A (mm) | G (mm) | f (mm) | K (mm) | D (mm) | C (mm) | n-Φ (mm) |
|---|---|---|---|---|---|---|---|---|
| 48 inch (DN1200) | 1950 | 1200 | 1290 | 1.6 | 1335 | 1392 | 65 | 44-32.5 |
Reference: ASME B16.5, ASME B16.47 A/B, ASME B16.10. Dimensions in mm. L = face-to-face length; A = branch chamber height; G = cover flange OD; f = raised face height; K = bolt circle diameter; D = flange OD; C = cover flange thickness; n-Φ = number of bolt holes and bolt hole diameter. Larger sizes are available on request. Contact us for confirmed drawing.
DN1200 (48 inch) T Type Strainer Applications
• Large diameter main pipeline: DN1200 main water lines, oil and gas transmission and industrial pipeline requiring large filtration area and low pressure drop.
• Water transmission: municipal water networks, pumping stations, water treatment plants and reservoir outlet with 48 inch T type strainer.
• Power plant cooling water: circulating water, cooling water intake and condenser protection with DN1200 large diameter fabricated T type strainer.
• District heating main lines: supply and return main lines in district energy networks with large diameter strainer for debris protection.
• Oil and gas main lines: crude oil and gas transmission with large diameter fabricated T type strainer and 3mm perforated screen.
• Desalination and industrial water: seawater intake and industrial water supply with 48 inch T type strainer for large debris removal.
FAQ - DN1200 (48 inch) 150LB T Type Strainer
Q1: What is a DN1200 (48 inch) T Type Strainer?
A: A DN1200 (48 inch) T Type Strainer is a large diameter fabricated pipeline strainer with a compact T-shaped shell, rated to ANSI Class 150LB / PN16. It is designed for large diameter main pipeline and high-flow service, removing foreign particles and impurities from liquid and gases using a 3mm (1/8 inch) perforated screen or wire mesh basket. The DN1200 T type strainer is the largest standard size in the T type strainer series, providing the largest filtration area and lowest pressure drop for main pipeline protection.
Q2: What flange standard is used for DN1200 (48 inch) T type strainer?
A: For DN1200 (48 inch) large diameter T type strainer, the flange is to ASME B16.47 A or B (large diameter flange standard) instead of ASME B16.5 (which only covers up to 24 inch). ASME B16.47 A (MSS SP-44) is more common for main water and oil transmission pipeline; ASME B16.47 B (API 605) is used for oil and gas pipeline. EN 1092-1 is also available for European standard piping systems. Please specify the flange standard when requesting a quotation.
Q3: What body materials are available for DN1200 T type strainer?
A: The DN1200 T type strainer body is fabricated from carbon steel A106 (seamless pipe) with A105 (forged components), or A516 (pressure vessel steel plate) depending on the design. A516 Gr.70 is used for the cylindrical body section when its higher strength and good toughness are preferred for large diameter pressure vessel fabrication. Cover is A105 forged carbon steel; cover bolts are A193 B7 with A194 2H nuts; gasket is graphite + SS304; screen is SS316 with 3mm (1/8 inch) perforated hole. For corrosive or low-temperature service, stainless steel body (CF8, CF8M, CF3, CF3M) and low-temperature steel (LCB, WPL6) are available on request.
Q4: What is the size range and can larger sizes be supplied?
A: DN1200 (48 inch) is the standard size for this page. Larger sizes (up to DN2000 / 80 inch and beyond) are available on request as special fabricated design. For sizes above DN1200, please contact us with your specific requirement. The fabricated body allows custom dimension production with shorter lead time than cast body. Face-to-face dimension follows ASME B16.10 for BW ends; for flanged ends, DIN 3202 or EN 558 may apply for European standard projects.
Q5: What is the standard screen hole size and mesh?
A: The standard screen for DN1200 T type strainer is SS316 with 3mm (1/8 inch) perforated hole, suitable for large diameter main pipeline and general debris removal. Other perforated hole sizes (1mm, 2mm, 4mm, 5mm, 6mm, 8mm, 10mm) and wire mesh sizes (10, 20, 40, 60, 80, 100, 200 mesh) are available on request. For large diameter pipeline, 3mm to 5mm perforated plate is common; for fine filtration, a combined screen (perforated plate + wire mesh) is recommended.
Q6: How do I maintain a DN1200 T type strainer?
A: Maintenance requires careful handling due to the large size: isolate the strainer, depressurize completely, open the drain plug to drain the strainer, remove the cover bolts, take out the screen, clean or replace it, install a new gasket, and retorque bolts to specified torque value. For DN1200 (48 inch) T type strainer, a davit arm design is strongly recommended for heavy cover lifting without crane. The T type strainer body is fabricated from A106 + A105 / A516 with bolted cover on the branch chamber for easy access. After maintenance, pressure test is required before returning to service.
Request a Quote for DN1200 (48 inch) 150LB T Type Strainer
Send us your size (DN1200 / 48 inch standard, larger sizes available), pressure rating (Class 150LB / PN16), body material (A106 + A105 / A516), flange standard (ASME B16.47 A / B or EN 1092-1), screen material (304SS / 316SS), perforated hole size (3mm standard or other), davit arm requirement, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
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