Cast Steel Parallel Double Disc Gate Valve for Industrial Isolation
Parallel double-disc gate valve with cast steel body for reliable on-off isolation in pipeline, power and process applications.
| Size Range | 2″–60″ (DN50–DN1500) |
|---|---|
| Pressure Rating | Class 150–4500 (PN16–PN760) |
| Body Material | Carbon steel, low-temperature steel, alloy steel, stainless steel, duplex steel, nickel-based alloy, titanium alloy, etc. |
| Connection Type | RF, BW, RTJ, etc. |
| Disc Design | Parallel double disc |
| Operation | Manual, gear drive, pneumatic, electric, hydraulic actuation, etc. |
Frequently Asked Questions
It is used for on-off isolation in pipeline, power and process systems when the selected size, pressure class, materials and trim suit the service conditions.
Two parallel closure discs seat against the body seats to provide bidirectional isolation. Final sealing performance depends on the approved design, seat construction and operating conditions.
No. Gate valves are normally selected for fully open or fully closed isolation. Throttling duty requires separate engineering review.
Provide size, pressure class, end connection, body and trim materials, medium, temperature, actuation, testing and documentation requirements.
Selection must be checked against the applicable ASME pressure-temperature rating, project specification and approved valve datasheet.
Product Overview
This cast steel parallel double disc gate valve is intended for dependable pipeline isolation where a full-open or full-closed flow path is required. The two-disc arrangement provides parallel seating while the rising-stem configuration gives visible position indication.
Body material, seats, trim, end connections and actuation are configured to the operating pressure, temperature, medium and project specification. WC6, carbon steel, stainless steel and other cast grades are reviewed against the actual duty rather than treated as interchangeable options.
Final selection should be based on the approved datasheet, applicable design and testing standards, pressure-temperature rating and purchaser documentation requirements.
- Parallel Double Disc: Two parallel closure discs for isolation service
- Cast Steel Body: Material grade selected for pressure, temperature and medium
- Project Connections: RF, RTJ or butt-weld ends may be configured
- Inspection Support: Pressure testing and project documentation available
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