DEMCO DT Series 3″ Full Port Gate Valves for general service. ASME Class 600, 900 & 1500. Threaded, Flanged RF/RTJ, and API LP end connections. Aluminum Bronze body, Stainless Steel internals.
DEMCO DT Series Gate Valves 3 in. (80 mm) Full Port ASME Class 600 900 1500
Description
DEMCO DT Series 3″ Full Port Gate Valves – General Service
The DEMCO DT Series Gate Valves are designed for general service conditions in oilfield and industrial applications. These 3-inch (80 mm) full port gate valves feature robust construction with ASME Class 600, 900, and 1500 pressure ratings, ensuring reliable flow control across a wide range of operating pressures.
Key Features & Benefits
- Full Port Design: 3.00″ (76 mm) bore for maximum flow capacity with minimal pressure drop
- Triple Pressure Ratings: ASME Class 600, 900, and 1500 for versatile application
- Multiple End Connections: Threaded, Flanged RF, Flanged RTJ, and API LP (Class 900 only)
- Premium Materials: Aluminum Bronze ASTM B148 Alloy 955 body, 316 SS stem, CF8M stainless steel gate
- Flexible Sealing Options: Buna-N, Viton, and P-10/Hytrel seat assemblies available
- Proven DEMCO Quality: Trusted gate valve design for general service conditions
Technical Specifications
| Specification | Details |
|---|---|
| Valve Size | 3 in. (80 mm) Full Port |
| ASME Class | 600, 900, 1500 |
| End Connections | Threaded, Flanged RF, Flanged RTJ, API LP (900 only) |
| Body Material | Aluminum Bronze ASTM B148 Alloy 955 |
| Stem Material | 316 Stainless Steel |
| Gate Material | Stainless Steel CF8M |
| Seat Options | Buna-N, Viton, P-10/Hytrel with TEFLON |
| Weight (Threaded) | 75 lb (34 kg) – Class 900 |
| Weight (Flanged) | 100-185 lb (45-84 kg) |
Dimensional Data (inches/mm)
| Dimension | Class 600 | Class 900 | Class 1500 |
|---|---|---|---|
| A – Threaded | – | 9.69 (246) | – |
| A – Flanged RF | 14.00 (356) | 15.00 (381) | 18.50 (470) |
| A – Flanged RTJ | 14.12 (359) | 15.12 (384) | 18.62 (373) |
| B (Open) | 18.00 (457) | 18.00 (457) | 18.82 (478) |
| C (Seat Bore) | 3.12 (79) | 3.12 (79) | 3.12 (79) |
| D | 14.75 (375) | 14.75 (375) | 18.00 (457) |
| E | 6.81 (173) | 7.15 (182) | 7.13 (181) |
| F – Flange OD | 8.25 (210) | 9.50 (241) | 10.50 (257) |
Working Pressure (psi)
| End Connection | Material | Class 600 | Class 900 | Class 1500 |
|---|---|---|---|---|
| Threaded | Bronze | – | 2220 | 3705 |
| Threaded | Stainless Steel | – | 3705 | 3705 |
| Flanged | Bronze | 1480 | 2220 | 3705 |
| Flanged | Stainless Steel | 1440 | 2160 | 3600 |
Assembly Part Number Guide
Configure your valve using the 7-digit part number system: J0XXXXX
| Digit | Feature | Options |
|---|---|---|
| 1-2 | End Connection | 2=600 RTJ, 3=600 RF, 4=900 RTJ, 5=900 RF, 6=1500 RTJ, 7=1500 RF, 0=API LP (900 Only) |
| 3 | Body Config | 4=Threaded, 7=Flanged |
| 4 | Stem Material | 8=Stainless Steel |
| 5 | Gate Material | 8=Stainless Steel |
| 6 | Seat Ring Material | 8=Stainless Steel |
| 7 | Seat Insert/Seal | 1=Buna-N, 2=Viton, 4=P-10/Hytrel TEFLON, 6=P-10/Buna-N |
Applications
- General oilfield service and flowline applications
- Water and wastewater treatment systems
- Industrial process piping
- Marine and offshore installations
- Petrochemical and chemical processing
Why Choose DEMCO DT Series Gate Valves?
DEMCO DT Series gate valves are engineered for dependable performance in general service conditions. With a comprehensive range of pressure classes, end connections, and sealing options, these valves provide flexible solutions for diverse industrial applications. The full port design ensures maximum flow efficiency, while the robust Aluminum Bronze construction delivers long-lasting durability.
CONTACT US: SALES@CPOSL.COM, WHATSAPP: 86-18621723891
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