DIN PN25 Cast Steel Gate Valve - DIN 3352, DN50 to DN1000
We supply DIN PN25 Cast Steel Gate Valve as a professional manufacturer and supplier, engineered for higher pressure service than standard PN16 designs. Manufactured in accordance with DIN 3352, with face-to-face dimensions according to DIN 3202-F5 and flange ends according to DIN 2501. This cast steel gate valve features rising stem OS&Y, bolted bonnet construction, and solid or flexible wedge design with hardfaced sealing surfaces for extended service life. Available in sizes DN50 to DN1000 (2″ to 40″) with pressure rating PN25 (25Bar / 2.5MPa). End connections include flanged (RF) and butt weld (BW). Materials include GS-C25, 1.4408, 1.4308, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or equivalent. Actuation options include manual handwheel, gear operated, and bare stem for electric actuator. Ideal for high-pressure steam systems, boiler feedwater, chemical, petrochemical, and power generation applications requiring DIN standard compliance.
Specifications for DIN PN25 Cast Steel Gate Valve
• Design & Manufacture: DIN 3352
• Face to Face: DIN 3202-F5
• Flange Ends: DIN 2501
• Inspection and Test: DIN 3230
• Construction: OS&Y, Bolted Bonnet, Solid or Flexible Wedge Design, Hardfaced Sealing Surfaces
• Size Range: DN50 to DN1000 (2″ to 40″)
• Pressure Rating: PN25 (25Bar / 2.5MPa)
• End Connections: Flanged (RF), Butt Weld (BW)
• Body Materials: GS-C25, 1.4408, 1.4308, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or Equivalent
• Trim Materials: Various trim materials are available to suit different service conditions
• Actuator Type: Manual Handwheel, Electric Actuator, Bare Stem
✓ Designed for higher pressure service — hardfaced sealing, thicker wall sections, and DIN standard compliance
Gate Valve DIN PN25 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 | GS-C25 / A216 WCB | 1.4408 / A351 CF8M | A217 WC6 / WC9 |
| Wedge / Disc | WCB + 13Cr / STL | CF8M / 1.4408 | WC6 / WC9 + 13Cr / STL |
| Seat | 13Cr / STL | SS304 / SS316 | 13Cr / STL |
| Stem | A182 F6a / F304 / F316 | A182 F304 / F316 | A182 F6a / F304 / F316 |
| Bolts / Nuts | A193 B7 / A194 2H | A193 B8 / A194 8, B8M / 8M | A193 B7 / A194 2H |
| Gasket | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
| Packing | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
Reference: DIN 3352, DIN 3202-F5, DIN 2501, DIN 3230. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
DIN PN25 Cast Steel Gate Valve Dimensions (DIN3202-F5)
| DN (mm) | NPS (inch) | L (RF/BW) mm |
|---|---|---|
| 50 | 2 | 250 |
| 65 | 2 1/2 | 270 |
| 80 | 3 | 280 |
| 100 | 4 | 300 |
| 125 | 5 | 325 |
| 150 | 6 | 350 |
| 200 | 8 | 400 |
| 250 | 10 | 450 |
| 300 | 12 | 500 |
| 350 | 14 | 550 |
| 400 | 16 | 600 |
| 450 | 18 | 650 |
| 500 | 20 | 700 |
| 600 | 24 | 800 |
| 700 | 28 | 900 |
| 800 | 32 | 1000 |
| 900 | 36 | 1100 |
| 1000 | 40 | 1200 |
Reference: DIN 3202-F5, DIN 2501. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Reference Drawing: DIN PN25 Cast Steel Gate Valve Dimensions (DIN3202-F5).
Industrial Gate Valve Dimension Details
Typical Applications of DIN PN25 Cast Steel Gate Valve
• High-pressure steam systems: boiler steam, district heating, and power plant auxiliary steam lines.
• Boiler feedwater: medium-pressure feedwater lines in power generation and industrial boilers.
• Chemical and petrochemical: process lines with PN25 pressure rating and DIN-standard flanged connections.
• Power generation: cooling water, service water, and high-pressure auxiliary systems in European-standard power plants.
• District heating and HVAC: medium-pressure heating and ventilation pipelines.
• European and international projects: pipelines requiring DIN 3352 / DIN 3202-F5 / DIN 2501 compliance at PN25 pressure rating.
FAQ - DIN PN25 Cast Steel Gate Valve
Q1: What is a DIN PN25 cast steel gate valve?
A: A DIN PN25 cast steel gate valve is a linear motion valve designed for on-off service in medium-pressure pipelines. It is manufactured to DIN 3352 with face-to-face dimensions per DIN 3202-F5, flange ends per DIN 2501, and inspection & test per DIN 3230. PN25 means the valve is rated for 25 bar (2.5 MPa) nominal pressure.
Q2: What is the difference between DIN PN16 and DIN PN25 gate valves?
A: DIN PN25 gate valves have thicker wall sections, heavier flanges, and higher pressure/temperature ratings than PN16. They are suitable for high-pressure steam, boiler feedwater, and other medium-pressure services. PN16 is preferred for general low-pressure industrial applications such as water treatment and HVAC.
Q3: What is the size range of DIN PN25 gate valves?
A: This DIN PN25 cast steel gate valve is available in sizes DN50 to DN1000 (2″ to 40″), covering a wide range of medium-pressure industrial pipeline applications. Other sizes are available on request.
Q4: What materials are available for DIN PN25 gate valves?
A: Common body materials include GS-C25, 1.4408, 1.4308, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, and C12. Various trim materials such as 13Cr, STL, SS304, SS316, and F6a are available to suit different service conditions.
Q5: What end connections and actuation options are available?
A: End connections include flanged (RF) per DIN 2501 and butt weld (BW). Actuation options include manual handwheel, gear operated, and bare stem for electric actuator. Other options are available on request.
Q6: What is the difference between OS&Y and NRS gate valves?
A: OS&Y (Outside Screw and Yoke) has a rising stem that visually indicates valve position, with stem threads outside the media — suitable for corrosive and high temperature service. NRS (Non-Rising Stem) has a non-rising stem, requiring less vertical space — commonly used in buried or space-limited installations.
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Send us your size (DN50 – DN1000), pressure rating, material, end connection, actuation type, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
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