Cast Steel Swing Check Valve DIN PN16 – PN250 - DIN 3356, Flanged, BW Ends
Tengs Valve supplies high-quality Cast Steel Swing Check Valves (Non-Return Valves) for DIN PN16 – PN250, manufactured to DIN 3356 standards with face-to-face DIN 3202, flange ends DIN 2501, and inspection & test DIN 3230. These swing check valves feature bolted bonnet or pressure sealing bonnet, swing type disc design with flanged (RF, MFM) or butt weld (BW) ends. Available sizes DN50 to DN500, with pressure ratings PN16, PN25, PN40, PN64 (PN63), PN100, PN160, PN250. Materials include carbon steel (GS-C25, WCB, LCB), stainless steel (1.4308, 1.4408, CF8, CF8M, CF3, CF3M), alloy steel (WC6, WC9, C5, C12), and duplex stainless steel (4A, 5A). Ideal for oil & gas, chemical, power generation, and water treatment pipeline systems. Industrial cast steel swing check valve Chinese supplier and manufacturer.
Specifications for Swing Check Valve DIN PN16 – PN250 (Flanged, BW Ends)
• Design & Manufacture: DIN 3356
• Face to Face: DIN 3202
• Flange Ends: DIN 2501
• Inspection and Test: DIN 3230
• Construction: Bolted Bonnet, Pressure Sealing Bonnet, Swing Type Disc
• Size Range: DN50 – DN500
• Pressure Ratings: PN16, PN25, PN40, PN64 (PN63), PN100, PN160, PN250
• End Connections: Flanged (RF, MFM), Butt Weld (BW)
• Body Materials: GS-C25, 1.4308, 1.4408, WCB, LCB, CF8, CF8M, CF3, CF3M, 4A, 5A, WC6, WC9, C5, C12 or Equivalent
• Trim Materials: Various trim materials available to suit service conditions
• Sour Service: NACE MR 0175 on Request
Swing Check Valve DIN PN16 – PN250 Main Parts and Materials
| Part Name | Material | ||
|---|---|---|---|
| Carbon Steel (GS-C25 / WCB) | Stainless Steel (1.4408 / CF8M) | Alloy Steel (WC6 / WC9) | |
| Body | GS-C25 / A216 WCB | 1.4408 / A351 CF8M | A217 WC6 / WC9 |
| Bonnet / Cover | GS-C25 / A216 WCB | 1.4408 / A351 CF8M | A217 WC6 / WC9 |
| Disc | WCB + 13Cr / STL | CF8M / 1.4408 | WC6 / WC9 + 13Cr / STL |
| Seat | 13Cr / STL | SS304 / SS316 | 13Cr / STL |
| Hinge Pin | A182 F6a | A182 F304 / F316 | A182 F6a / F11 |
| Bolts/Nuts | A193 B7 / A194 2H | A193 B8 / A194 8, B8M / 8M | A193 B7 / A194 2H |
| Gasket | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
Reference: DIN 3356, DIN 3202, DIN 2501, DIN 3230. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Reference: DIN 3356, DIN 3202. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Industrial Check Valve Dimension Details
Typical Applications of DIN PN16 – PN250 Swing Check Valve
• Oil & gas transmission pipelines: crude oil, natural gas, and refined product lines.
• Refinery and petrochemical plants: process lines requiring reliable non-return protection.
• Power generation: steam, feedwater, and cooling water systems.
• Water treatment and pump discharge: preventing backflow and protecting pumps.
• European standard pipelines: DN flanged systems requiring DIN-compliant valves.
• Sour service: available with NACE MR 0175 compliance on request.
FAQ - Cast Steel Swing Check Valve DIN PN16 – PN250
Q1: What is a DIN swing check valve?
A: A DIN swing check valve is a non-return valve manufactured to DIN 3356 standard, with face-to-face dimensions according to DIN 3202, flange ends according to DIN 2501, and inspection & test according to DIN 3230. It uses a swing type disc to prevent backflow in pipeline systems.
Q2: What pressure ratings are available?
A: DIN swing check valves are available in PN16, PN25, PN40, PN64 (PN63), PN100, PN160, and PN250, covering low to high pressure applications in European standard pipeline systems.
Q3: What materials are available?
A: Common body materials include GS-C25, 1.4308, 1.4408, WCB, LCB, CF8, CF8M, CF3, CF3M, 4A, 5A, WC6, WC9, C5, and C12. Various trim materials are available to suit different service conditions.
Q4: What end connections are available?
A: DIN swing check valves are available with flanged ends (RF, MFM) according to DIN 2501, and butt weld (BW) ends. Flanged ends are the most common for European pipeline systems.
Q5: What is the difference between bolted bonnet and pressure sealing bonnet?
A: Bolted bonnet is suitable for general service and is easy to maintain. Pressure sealing bonnet uses internal pressure to tighten the seal, making it more suitable for high pressure and high temperature applications. Both options are available for DIN swing check valves.
Q6: Is NACE MR 0175 available?
A: Yes. NACE MR 0175 compliance is available on request for sour service applications. Please specify this requirement when requesting a quotation.
Get a Fast Quote for DIN PN16 – PN250 Swing Check Valve
Send us your size (DN50 – DN500), pressure rating (PN16 – PN250), material, end connection, 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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