DIN PN40 Cast Steel Gate Valve - Double Flanged Rising Stem Gate Valve
We supply DIN PN40 Cast Steel Gate Valve with double flanged connections and rising stem design for reliable shut-off in high-pressure pipeline systems. Manufactured in accordance with DIN 3352, this cast steel gate valve features OS&Y rising stem, bolted bonnet construction, flanged (RF) end connections, and flexible wedge design. Available in sizes DN50 to DN600 with pressure rating PN40 (4.0MPa). Materials include carbon steel, stainless steel, and alloy steel to suit various service conditions. Ideal for high-pressure water, chemical, petrochemical, and industrial pipeline applications requiring DIN standard compliance.
PN40 Double Flanged Gate Valve Specifications
• Valve Type: PN40 Gate Valves
• Wedge Type: Flexible Wedge
• Bonnet Type: OS&Y, Bolted Bonnet
• Stem Type: Rising Stem (RS)
• End Connections: Flanged (RF)
• Body Materials: Cast Steel: GS-C25, 1.4308, 1.4408, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or Equivalent
• Trim Materials: 410, 304, 316, Hard Faced, Full Hard Faced
• Size Range: DN50 to DN600 (2″ to 24″)
• Pressure Rating: PN40 (4.0MPa)
• Actuator Type: Manual Handwheel
✓ PN40 rated at 4.0MPa — suitable for high-pressure steam, water, and chemical service
DIN Gate Valve Standards
| Design Standard | Face to Face | Flange Ends | Test & Inspection |
|---|---|---|---|
| DIN 3352 | DIN 3202 | DIN 2543-2545 | DIN 3230 |
Reference: DIN 3352, DIN 3202, DIN 2543-2545, DIN 3230. Other standards available on request.
DIN Standard Cast Steel Gate Valve Parts and Material List for DIN PN40
| No. | Part Name | Material | ||||
|---|---|---|---|---|---|---|
| CS / Trim 1 | CS / Trim 8 | CS / Trim 5 | SS (1.4308) | SS (1.4408) | ||
| 1 | Body | DIN 17245 GS-C25+13Cr | DIN 17245 GS-C25+STL | DIN 17245 GS-C25+STL | DIN 17445 1.4308 | DIN 17445 1.4408 |
| 2 | Wedge | DIN 17245 GS-C25+13Cr | DIN 17245 GS-C25+13Cr | DIN 17245 GS-C25+STL | DIN 17445 1.4308 | DIN 17445 1.4408 |
| 3 | Stem | ASTM A182 F6a | ASTM A182 F304 | ASTM A182 F316 | ||
| 4 | Nut | A194 2H | A194 8 | A194 8 | ||
| 5 | Bolt | A193 B7 | A193 B8 | A193 B8 | ||
| 6 | Gasket | SS Spiral Wound with Graphite, or SS Spiral Wound with PTFE, or Reinforced PTFE | ||||
| 7 | Bonnet | DIN 17245 GS-C25+13Cr | DIN 17245 GS-C25+13Cr | DIN 17245 GS-C25+13Cr | DIN 17445 1.4308 | DIN 17445 1.4408 |
| 8 | Packing | Braided Graphite or Reformed Graphite Ring or PTFE | ||||
| 9 | Gland | ASTM A182 F6a | ASTM A182 F304 | ASTM A182 F316 | ||
| 10 | Gland Flange | DIN 17245 GS-C25 | DIN 17445 1.4308 | DIN 17445 1.4408 | ||
| 11 | Stem Nut | Copper Alloy or A439 D2 | ||||
| 12 | Hand Wheel | Ductile Iron or Carbon Steel | ||||
Reference: DIN 3352, DIN 3202, DIN 3230. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Main Dimensions for DIN Gate Valve PN40
PN40 Double Flanged Gate Valve Dimensions (DIN3202-F7)
| PN4.0MPa DIN3202-F7 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size (mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| L-RF | 250 | 290 | 310 | 350 | 400 | 450 | 550 | 650 | 750 | 850 | 950 | 1050 | 1150 | 1350 |
| W | 200 | 280 | 300 | 350 | 350 | 400 | 450 | 500 | 500 | 600 | 650 | 700 | 700 | 800 |
Reference: DIN 3202-F7, DIN 2543-2545. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Typical Applications of DIN PN40 Cast Steel Gate Valve
• High-pressure steam systems: boiler steam isolation and auxiliary steam lines in power plants.
• Boiler feedwater: medium-high pressure feedwater lines in power generation and industrial boilers.
• Chemical and petrochemical: process lines requiring high-pressure isolation with DIN-standard flanged connections.
• Thermal oil systems: absolute sealing under extreme thermal gradients in industrial heating circuits.
• Industrial water networks: high-pressure distribution system shut-off and pump discharge lines.
• European and international projects: pipelines requiring DIN 3352 / DIN 3202-F7 / DIN 2543-2545 compliance at PN40 pressure rating.
FAQ - DIN PN40 Cast Steel Gate Valve
Q1: What is a DIN PN40 cast steel gate valve?
A: A DIN PN40 cast steel gate valve is a linear motion valve designed for on-off isolation service in high-pressure pipelines. It is manufactured to DIN 3352 with face-to-face dimensions per DIN 3202-F7 and flange ends per DIN 2543-2545. PN40 means the valve is rated for 40 bar (4.0 MPa) nominal pressure at the reference temperature.
Q2: What is the difference between PN25 and PN40 gate valves?
A: DIN PN40 gate valves have thicker wall sections, heavier flanges, and higher pressure/temperature ratings than PN25. They are suitable for high-pressure steam, boiler feedwater, and thermal oil services where PN25 would be insufficient. PN40 (4.0MPa) provides a higher safety margin for critical high-pressure applications.
Q3: What materials are available for DIN PN40 gate valves?
A: Common body materials include GS-C25, 1.4308, 1.4408, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, and C12. Various trim materials such as 410, 304, 316, hard faced, and full hard faced are available to suit different service conditions.
Q4: What is the difference between DIN PN40 and ANSI Class 300?
A: DIN PN40 (4.0MPa) and ANSI Class 300 are both medium-high pressure ratings, but they differ in standards. DIN uses European standards (DIN 3352 / DIN 3202-F7 / DIN 2543-2545) with metric DN sizes, while ANSI uses American standards with inch NPS sizes. Flange dimensions, face-to-face lengths, and materials (GS-C25 vs WCB) are different. Choose DIN for European projects and ANSI for American projects.
Q5: What end connections and actuation options are available?
A: End connections include double flanged (RF) per DIN 2543-2545. Actuation options include manual handwheel, gear operated, and bare stem for electric actuator. Other options are available on request.
Q6: Why should a gate valve not be used for throttling?
A: Gate valves are designed exclusively for fully open or fully closed (isolation) service. Throttling can cause severe damage to the wedge and seating surfaces due to vibration, erosion, and wire drawing. Use a globe valve or dedicated throttling valve for flow regulation applications.
Get a Fast Quote for DIN PN40 Cast Steel Gate Valve
Send us your size (DN50 – DN600), pressure rating, material, end connection, actuation type, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
Website: Request a Quote Online
Email Us Now
Industrial Gate Valve Dimension Details
Related Valve Pages
• Industrial Gate Valve - Cast Steel Gate Valve Main Page
• Globe Valve - Cast Steel Globe Valve Series
• Industrial Check Valve - Cast Steel Check Valve Main Page
• Ball Valve - Ball Valve Series Overview
• Butterfly Valve - Butterfly Valve Series Overview
