DIN Basket Strainer PN16 PN25 Fabricated Body - DN50 to DN900, Flanged FF RF BW
Tengs Valve is a China DIN Basket Strainer and Bucket Strainer supplier, offering Simplex Basket Strainers in DIN PN16 and PN25 (PN10 and PN40 available) with fabricated (welded) body construction. Nominal diameters range from DN50 to DN900, with bolted cover design and available with flanged FF / RF or Butt Weld (BW) ends to DIN EN 1092-1 / EN 12627. Body materials include carbon steel, alloy steel and 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 fabricated body offers large diameter production with shorter lead time, ideal for European district heating, water distribution and general industrial service in water, gas, oil and steam.
Specifications For Basket Strainer DIN PN16 And PN25
• Strainer Type: Simplex Basket Strainer, Bucket Strainer
• Body Structure: Fabricated (Welding) Body
• Sizes: DN50 to DN900
• Pressure Rating: PN10, PN16, PN25, PN40
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: Carbon steel, alloy steel, stainless steel
• 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), RTJ (Ring Joint)
• Cover Type: Bolted Cover (B.C.)
• Design and Manufacture: DIN 3230, EN 12266-1
• Inspection and Test: DIN 3230, API 598
• Flange Dimension: DIN EN 1092-1 (PN10, PN16, PN25, PN40)
• BW End Dimension: EN 12627
• Face to Face: DIN 3202, EN 558
✓ DIN PN16 / PN25 fabricated body basket strainer provides European standard filtration for district heating, water distribution and general industrial service
DIN Basket 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 (PN10, 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 Basket Strainer Pressure Rating: PN10 vs PN16 vs PN25 vs PN40
| Pressure Rating | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| PN10 | 10 | 145 | Low-pressure water, HVAC, district heating return lines |
| PN16 | 16 | 232 | District heating, water distribution, general industrial service |
| PN25 | 25 | 362 | Medium-pressure steam, process water, chemical service |
| PN40 | 40 | 580 | High-pressure steam, boiler feedwater, high-pressure process |
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; PN10 is used for low-pressure water and HVAC service.
DIN Fabricated Body Basket Strainer Material Selection (EN Standard)
| Body Material | EN Material Number | ASTM Equivalent | Typical Application |
|---|---|---|---|
| P235GH / P265GH | 1.0345 / 1.0425 | A106 Gr.B, A234-WPB | District heating, water, steam, general European standard service |
| 16Mo3 | 1.5415 | A204 Gr.A/B | Alloy steel for elevated temperature steam and boiler service |
| X5CrNi18-10 (304) | 1.4301 | SS304, A312 TP304 | Water treatment, food and beverage, general chemical |
| X2CrNi19-11 (304L) | 1.4306 | SS304L, A312 TP304L | Welded construction, food and pharmaceutical service |
| X5CrNiMo17-12-2 (316) | 1.4401 | SS316, A312 TP316 | Chemical, marine, chloride-containing media |
| X2CrNiMo17-12-2 (316L) | 1.4404 | SS316L, A312 TP316L | Pharmaceutical, high-purity chemical, welded service |
Reference: EN 10028, EN 10216, EN 10217, ASTM A106, A234, A312. DIN fabricated basket strainer uses European EN standard steel plate and pipe materials. 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.
DIN Fabricated Body vs Cast Body Basket Strainer
| Item | Fabricated Body (This Page) | Cast Body |
|---|---|---|
| Body Construction | Welded steel plate and pipe, multi-piece | One-piece sand casting |
| Size Range | DN50 to DN900 | DN50 to DN600 |
| Body Material | P235GH, P265GH, 16Mo3, 304, 304L, 316, 316L | GS-C25, EN-GP-240-GH, EN-GX5CrNi18-10, EN-GX5CrNiMo19-11-2 |
| Wall Thickness | Customizable, lighter weight in large sizes | Uniform, thicker walls |
| Lead Time | Shorter for large sizes and custom dimensions | Standard patterns, stable lead time |
| Typical Application | District heating main lines, large diameter pipeline, custom projects | General industrial service, water, oil, gas, chemical |
Reference: DIN 3230, EN 12266-1. This page covers the fabricated body version of DIN PN16 / PN25 basket strainer. Fabricated body allows larger sizes (up to DN900) and custom dimensions with shorter lead time than cast body.
DIN Basket Strainer PN16 - PN25 Fabricated Body Main Parts and Material List
| No. | Part Name | Carbon / Alloy Steel | Stainless Steel (EN) | Duplex / Super Duplex |
|---|---|---|---|---|
| 01 | Body | 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) | X2CrNiMoN22-5-3 (1.4462), X2CrNiMoN25-7-4 (1.4410) |
| 02 | Basket / Screen | 304SS, 316SS | 304SS, 316SS, 304LSS, 316LSS | Duplex 2205, Super Duplex 2507 |
| 03 | Wire Mesh | 304SS, 316SS | 304SS, 316SS, 304LSS, 316LSS | Duplex 2205, Super Duplex 2507 |
| 04 | Gasket | Graphite, Graphite + Stainless Steel (304SS / 316SS), PTFE, EPDM | ||
| 05 | Cover | P265GH (1.0425) | X5CrNi18-10 (1.4301), X2CrNiMo17-12-2 (1.4404) | X2CrNiMoN22-5-3 (1.4462) |
| 06 | Bolt | 21CrMoV5-7 (1.7709) | X5CrNi18-10 (1.4301), X5CrNiMo17-12-2 (1.4401) | A4-70 / A4-80 |
| 07 | Nut | 21CrMoV5-7 (1.7709) | X5CrNi18-10 (1.4301), X5CrNiMo17-12-2 (1.4401) | A4-70 / A4-80 |
| 08 | Drain Plug | P265GH (1.0425), 21CrMoV5-7 (1.7709) | X5CrNi18-10 (1.4301), X2CrNiMo17-12-2 (1.4404) | X2CrNiMoN22-5-3 (1.4462) |
Reference: DIN 3230, EN 12266-1, EN 10028, EN 10216, EN 10217. DIN fabricated basket 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 DIN Fabricated Basket Strainer PN16 - PN25
Reference: DIN EN 1092-1, DIN 3202, EN 558. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
DIN Basket Strainer PN16 - PN25 Fabricated Body Applications
• District heating and cooling: supply and return lines in European district energy networks requiring DIN EN 1092-1 flanged connection and large diameter fabricated body.
• Water distribution: municipal water networks, pumping stations and large diameter pipeline with PN16 / PN25 fabricated body basket strainer.
• Power plant and boiler service: feedwater, condensate and steam protection lines with P265GH or 16Mo3 elevated temperature carbon steel body.
• Chemical and petrochemical: corrosive media filtration with EN 1.4401 (316) or EN 1.4404 (316L) fabricated stainless steel body and 304LSS / 316LSS basket.
• HVAC and building services: chilled water, hot water and medium-pressure steam distribution in European standard buildings.
• Custom projects: non-standard DN sizes, special flange drilling to DIN EN 1092-1 and custom materials with short lead time.
FAQ - DIN Basket Strainer PN16 / PN25 Fabricated Body
Q1: What is a DIN Basket Strainer PN16 / PN25?
A: A DIN Basket Strainer PN16 / PN25 is a basket type pipeline filter with a fabricated (welded) steel body rated to DIN PN16 (16 bar / 232 psi) or PN25 (25 bar / 362 psi) in accordance with DIN EN 1092-1. It removes small impurities from liquid, gases and pipe systems using a perforated screen or wire mesh basket. The nominal diameter range is DN50 to DN900, with flanged FF / RF or Butt Weld ends. It is the standard choice for European district heating, water distribution and general industrial service, especially in large diameter pipeline where fabricated body offers shorter lead time.
Q2: What is the difference between PN16, PN25, PN10 and PN40?
A: DIN PN ratings are European standard pressure classes with design pressures of 10 bar (145 psi), 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; PN10 is used for low-pressure water and HVAC; PN40 is selected for high-pressure steam and boiler feedwater. Flange dimensions and bolt pattern differ for each PN rating, and must be specified when ordering.
Q3: What body materials are available for DIN fabricated basket strainer?
A: Fabricated body materials include European EN standard carbon steel (P235GH / 1.0345, P265GH / 1.0425), alloy steel (16Mo3 / 1.5415) for elevated temperature service, and stainless steel (X5CrNi18-10 / 1.4301, X2CrNi19-11 / 1.4306, X5CrNiMo17-12-2 / 1.4401, X2CrNiMo17-12-2 / 1.4404). Duplex stainless steel (X2CrNiMoN22-5-3 / 1.4462 and X2CrNiMoN25-7-4 / 1.4410) is available for seawater and offshore service. ASTM equivalents are A106 Gr.B, A234-WPB, SS304, SS304L, SS316, SS316L and duplex 2205 / 2507 respectively. Material certificate to EN 10204 3.1 is available on request.
Q4: What is the difference between FF, RF and BW ends for DIN basket strainer?
A: FF (Flat Face) flanged ends have a flat sealing surface and are common in low-pressure European water and district heating service (PN10 / PN16), typically with a full-face gasket. RF (Raised Face) flanged ends have a raised sealing surface and are used for higher pressure PN25 and PN40 service with a confined gasket. RTJ (Ring Joint) ends are available for high-pressure service with metal ring gasket. BW (Butt Weld) ends provide a permanent welded connection with no potential leak path, preferred for high-integrity and buried pipelines. All flanged ends are to DIN EN 1092-1; BW ends are to EN 12627.
Q5: What screen and mesh sizes are available?
A: Screens are supplied in stainless steel 304SS, 316SS, 304LSS and 316LSS as standard. For corrosive and seawater service, duplex 2205 and super duplex 2507 baskets are available. Mesh sizes include 20, 40, 60, 80, 100, 200 and 400 mesh, tailor-made to customer requirements. For district heating and water service, 20 to 40 mesh is common; for steam and fine chemical service, 60 to 100 mesh is specified. Please specify the mesh size when requesting a quotation.
Q6: How do I maintain a DIN 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. The bolted cover design allows basket removal without disconnecting the pipeline. For large diameter DN500-DN900 fabricated basket strainers, 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. For continuous district heating operation, a duplex basket strainer configuration is recommended.
Request a Quote for DIN Basket Strainer PN16 - PN25 Fabricated Body
Send us your DN size, pressure rating (PN10 / PN16 / PN25 / PN40), body material (P235GH / P265GH / 16Mo3 / 1.4301 / 1.4404 / 1.4462), end connection (FF / RF / RTJ / BW), screen material (304SS / 316SS / 304LSS / 316LSS / 2205 / 2507), 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
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