T Type Strainer DIN PN16 PN25 PN40 - Straight and Angle Type, DN15 to DN500
Tengs Valve supplies high-quality T Type Strainers (T Strainers) to DIN / EN standard in pressure ratings PN16, PN25 and PN40, available in both Straight and Angle Type configurations. Manufactured with bolted cover and flanged RF or Butt Weld (BW) ends to DIN EN 1092-1 / EN 12627. Nominal diameters range from DN15 to DN500. Body materials include carbon steel (WPB, WCB, A106), low-temperature carbon steel (LCB), stainless steel (CF8, CF8M, CF3, CF3M, SS304, SS304L, SS316, SS316L) and duplex stainless steel, supplied to European EN material standard. Screens are supplied in 304SS, 316SS, 304LSS and 316LSS with mesh sizes from 20 to 400 mesh. The T type strainer provides straight-through flow with excellent flow characteristics, ideal for European district heating, water distribution, HVAC, medium-pressure steam and general industrial filtration.
Specifications For T Type Strainer PN16, PN25, PN40
• Strainer Type: T Type Strainer (T Strainer)
• Available Types: Straight Type, Angle Type
• Nominal Diameter: DN15 to DN500
• Nominal Pressure: PN16, PN25, PN40
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: WPB, WCB, A106, LCB, CF8, CF8M, CF3, CF3M, SS304, SS304L, SS316, SS316L
• Screen: Stainless Steel (304SS, 316SS, 304LSS, 316LSS)
• Mesh Size: 20, 40, 60, 80, 100, 200, 400 mesh etc.
• End Connection: Butt Weld (BW), Flanged RF (Raised Face)
• Cover Type: Bolted Cover
• Design and Manufacture: DIN 3230, EN 12266-1
• Inspection and Test: DIN 3230, API 598
• Flange Dimension: DIN EN 1092-1 (PN16, PN25, PN40)
• BW End Dimension: EN 12627
• Face to Face: DIN 3202, EN 558
• Others: On request
✓ DIN PN16 / PN25 / PN40 T type strainer provides European standard straight-through filtration for district heating, water distribution and general industrial service
T Type Strainer Standards
1. Design and Manufacture: DIN 3230, EN 12266-1
2. Inspection and Test: DIN 3230, API 598
3. End Flange Dimension: DIN EN 1092-1 (PN16, PN25, PN40)
4. BW End Dimension: EN 12627
5. Face to Face: DIN 3202, EN 558
6. Pressure-Temperature Ratings: DIN EN 1092-1
DIN T Type Strainer Pressure Rating Comparison: PN16 vs PN25 vs PN40
| Pressure Rating | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| PN16 | 16 | 232 | District heating, water distribution, HVAC, general industrial service |
| PN25 | 25 | 362 | Medium-pressure steam, process water, chemical service |
| PN40 | 40 | 580 | High-pressure steam, boiler feedwater, high-pressure process piping |
Reference: DIN EN 1092-1. PN16 is the most common rating for European district heating and water distribution; PN25 and PN40 are selected for higher pressure and temperature requirements.
DIN T Type Strainer Body Material Selection (EN Standard)
| Body Material | EN Material Number | ASTM Equivalent | Typical Application |
|---|---|---|---|
| P235GH | 1.0345 | A106 Gr.B, A234-WPB | District heating, water, steam, general European standard service |
| P265GH | 1.0425 | A106 Gr.B, A234-WPB | Higher strength carbon steel for steam and process piping |
| 16Mo3 | 1.5415 | A204 Gr.A/B | Alloy steel for elevated temperature steam and boiler service |
| X5CrNi18-10 (SS304) | 1.4301 | A351-CF8, SS304 | Water treatment, food and beverage, general chemical |
| X2CrNi19-11 (SS304L) | 1.4306 | A351-CF3, SS304L | Welded construction, food and pharmaceutical service |
| X5CrNiMo17-12-2 (SS316) | 1.4401 | A351-CF8M, SS316 | Chemical, marine, chloride-containing media |
| X2CrNiMo17-12-2 (SS316L) | 1.4404 | A351-CF3M, SS316L | Pharmaceutical, high-purity chemical, welded service |
| X2CrNiMoN22-5-3 (2205) | 1.4462 | A890-4A, Duplex 2205 | Seawater, desalination, offshore service |
Reference: EN 10028, EN 10216, EN 10217, ASTM A106, A234, A351, A890. DIN T type strainer is supplied to European EN material standard. P235GH and P265GH are the standard carbon steel choices for PN16 / PN25 service; 16Mo3 is selected for elevated temperature service; 304 / 304L / 316 / 316L are selected for corrosive service.
T Type Strainer Working Principle: Straight Type and Angle Type
| Type | Flow Direction | Screen Orientation | Key Characteristic |
|---|---|---|---|
| Straight Type | Straight through flow | Vertical (downward) or horizontal side branch | Lowest pressure drop, ideal for high-flow pipeline |
| Angle Type | Right angle (90°) flow | Horizontal side branch | Replaces standard elbow, saves space in compact layout |
Reference: DIN 3230, EN 12266-1. Straight type T strainer is installed horizontally with the branch section hanging downward for liquid service; angle type is installed at 90° pipeline corners and can replace a standard elbow. For gas and steam service, the branch section points sideways to prevent condensate pooling.
Main Parts and Material List For DIN T Type Strainer PN16 - PN40
| No. | Part Name | Carbon Steel | Low-Temp Steel | Stainless Steel |
|---|---|---|---|---|
| 01 | Body / Tee | A234-WPB, A106, A216-WCB | A352-LCB | A351-CF8, CF3, CF8M, CF3M; SS304, SS304L, SS316, SS316L |
| 02 | Flange | A105 | A350-LF2 | A182-F304 / F304L / F316 / F316L |
| 03 | Cover | A105 | A350-LF2 | A182-F304 / F304L / F316 / F316L |
| 04 | Bolt | A193 B7 | A320 L7 | A193 B8 / B8M |
| 05 | Nut | A194 2H | A194 4 | A194 8 / 8M |
| 06 | Gasket | Graphite + 304SS / 316SS / 304LSS / 316LSS | ||
| 07 | Screen | 304SS / 316SS / 304LSS / 316LSS | ||
| 08 | Drain Plug | A105 | A350-LF2 | A182-F304 / F304L / F316 / F316L |
Reference: DIN 3230, EN 12266-1, EN 10216, EN 10217, ASTM A106, A234, A351, A182, A193, A194, A320. DIN T type strainer is supplied to European EN material standard. Material certificate to EN 10204 3.1 is available on request. Contact us for confirmed material certificate.
Dimensions For T Type Strainer PN16 - PN40
Reference: DIN EN 1092-1, DIN 3202, EN 558. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
DIN T Type Strainer PN16 - PN40 Applications
• District heating and cooling: supply and return lines in European district energy networks requiring DIN EN 1092-1 flanged connection.
• Water distribution: municipal water networks, pumping stations and building services in European standard piping systems.
• HVAC and building services: chilled water, hot water and low-pressure steam distribution with RF or BW ends.
• Medium-pressure steam (PN25 / PN40): steam mains, boiler feedwater and condensate lines in power plants and industrial plants.
• Chemical and process industry: corrosive media filtration with EN 1.4301 / 1.4404 / 1.4462 body for European process plants.
• Marine and desalination: seawater and desalination service with duplex 2205 body and 316LSS screen.
FAQ - DIN T Type Strainer PN16 / PN25 / PN40
Q1: What is a DIN T Type Strainer?
A: A DIN T Type Strainer (T Strainer) is a fabricated pipeline strainer with a compact T-shaped shell, designed to DIN / EN standard with pressure ratings PN16, PN25 and PN40. It removes foreign particles and impurities from liquid and gases using a perforated screen or wire mesh basket, protecting downstream pumps, valves, meters and other equipment. It is available in Straight Type and Angle Type, with nominal diameter DN15 to DN500, and is the standard choice for European district heating, water distribution and general industrial service.
Q2: What is the difference between PN16, PN25 and PN40?
A: PN16, PN25 and PN40 are European standard pressure ratings with design pressures of 16 bar (232 psi), 25 bar (362 psi) and 40 bar (580 psi) respectively, in accordance with DIN EN 1092-1. PN16 is the most common rating for European district heating and water distribution; PN25 is used for medium-pressure steam and process water; PN40 is selected for high-pressure steam, boiler feedwater and high-pressure process piping. Flange dimensions and bolt pattern differ for each PN rating, and must be specified when ordering.
Q3: What body materials are available for DIN T type strainer?
A: Body materials include carbon steel (A234-WPB, A106, A216-WCB), low-temperature carbon steel (A352-LCB), stainless steel (A351-CF8, CF8M, CF3, CF3M and SS304, SS304L, SS316, SS316L) and duplex stainless steel. In European standard, the equivalent EN material numbers are P235GH (1.0345), P265GH (1.0425), 16Mo3 (1.5415), X5CrNi18-10 (1.4301), X2CrNi19-11 (1.4306), X5CrNiMo17-12-2 (1.4401), X2CrNiMo17-12-2 (1.4404) and X2CrNiMoN22-5-3 (1.4462). Material certificate to EN 10204 3.1 is available on request.
Q4: What end connections are available for DIN T type strainer?
A: DIN T type strainer is available with Flanged RF (Raised Face) to DIN EN 1092-1 for PN16, PN25 and PN40, and Butt Weld (BW) to EN 12627. Face-to-face dimension follows DIN 3202 and EN 558. Cover type is bolted cover (blind flange) with drain plug for maintenance. RTJ end is not typically used in DIN standard; it is more common in ASME standard high-pressure service.
Q5: What is the nominal diameter range available?
A: DIN T type strainers are available from DN15 to DN500. The DIN standard uses nominal diameter (DN) instead of inch size, which corresponds to the European piping system. For example, DN50 corresponds to approximately 2 inch, DN100 to 4 inch, and DN200 to 8 inch. For sizes above DN500, a special fabricated design may be evaluated; please contact us with your specific requirement.
Q6: How do I maintain a DIN T type strainer?
A: Maintenance is simple: isolate the strainer, depressurize, open the drain plug to drain the strainer, remove the blind flange cover bolts, take out the screen, clean or replace it, install a new gasket, and reassemble. The T type strainer body has a bolted cover (blind flange) on the branch chamber for easy access. Because the branch chamber is isolated from the main flow path, opening it does not cause a massive spill of process fluid. For large diameter T type strainer (above DN300), a davit arm design is recommended for heavy cover lifting without crane. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar.
Request a Quote for DIN T Type Strainer PN16 - PN40
Send us your DN size (DN15 to DN500), pressure rating (PN16 / PN25 / PN40), type (Straight / Angle), body material (WPB / WCB / A106 / LCB / CF8 / CF8M / CF3 / CF3M / SS304 / SS304L / SS316 / SS316L / Duplex), end connection (Flanged RF or BW), screen material (304SS / 316SS / 304LSS / 316LSS), 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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