DEMCO DM Series 3-inch Full Port Gate Valves 7500 PSI WP – API 6A compliant 3 in. (80 mm) full port gate valve with 3.00 in. bore. Available with Weld End or Flanged End (API Ring BX-154) for high-flow oilfield applications.
DEMCO DM Series Gate Valves 7500 PSI WP – 3 in. (80 mm) Full Port
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Available on backorder
Available on backorder
Description
DEMCO DM Series Gate Valves 7500 PSI WP – 3 in. (80 mm) Full Port
DEMCO DM Series 3-inch Full Port Gate Valves are heavy-duty API 6A compliant gate valves engineered for high-flow, high-pressure oilfield applications. With a 7500 PSI working pressure rating and 3-inch (80 mm) full port bore, these valves deliver maximum flow capacity for production manifolds, well testing, and large-diameter flowline systems.
Key Features & Benefits
- Full Port Design: 3.00 in. (76 mm) valve seat ID provides unrestricted flow path with minimal pressure drop
- Large Bore Capacity: 3-inch size handles high-volume fluid transfer for production and testing operations
- API 6A Compliant: Manufactured in accordance with API 6A, 17th Edition, paragraph 4.3.3 standards
- 7500 PSI Working Pressure: High-pressure rating suitable for demanding oilfield environments
- Dual End Connection Options: Weld End or Flanged End (API Ring BX-154, 10,000 RTJ)
- Multiple Material Configurations: 410 SS, 17-4 PH SS stem options; various gate/wear ring combinations
- Advanced Seal Technology: Viton or HNBR elastomer options for different temperature and chemical environments
- Comprehensive Testing: Three PSL groups with hydrostatic shell testing up to 11,250 PSI
Technical Specifications
| Specification | Value |
|---|---|
| Valve Size | 3 in. (80 mm) FP – Full Port |
| Working Pressure | 7500 PSI WP |
| Valve Seat ID | 3.00 in. (76 mm) |
| End Connections | Weld End or Flanged End (API Ring BX-154) |
| Overall Height (Open) | 24.60 in. (625 mm) |
| Overall Width | 23.00 in. (584 mm) DIA |
| Handle Turns (Open to Closed) | 16.01 turns |
| Weight – Weld End | 256 lb. (116 kg) |
| Weight – Flanged End | 323 lb. (147 kg) |
| Body Material | ASTM A487 Grade 4 Class D |
Flanged End Dimensions
| Dimension | Value |
|---|---|
| Dimension A – Weld End | 13.00 in. (330 mm) |
| Dimension A – Flanged End, API Length | 24.38 in. (619 mm) |
| API Ring Number | BX-154 |
| Flange ID | 3.06 in. (78 mm) |
| Flange OD | 10.62 in. (270 mm) |
| Flange Bolts (QTY – Size) | 8 – 1 in. |
Hydrostatic Test Requirements by PSL Group
| Test Type | Group 1 | Group 2 | Group 3 |
|---|---|---|---|
| Shell Test | 11,250 PSI / 3 min | 11,250 PSI / 3 min + extended hold (charted) | Same as Group 2 |
| Seat Test | 7,500 PSI / 3 min each side | 7,500 PSI / 3 min + extended test (charted) | Same as Group 2 |
| Impact Test | N/A | -50°F (-46°C) on body, bonnet, stem, housing, packing retainer & bolting | Same as Group 2 |
| NDE Requirements | N/A | Surface NDE on body, bonnet, stem | Surface + Volumetric NDE on body & bonnet |
| Material Traceability | Body & bonnet | Body, bonnet, stem, gate & bolting | Same as Group 2 |
Assembly Part Number Configuration
| Configuration | Code | Options |
|---|---|---|
| End Connection | 3 / 4 | 3 – Flanged (10,000 RTJ) / 4 – Weld (3.50 in. OD x 2.30 in. ID for 3 in. XXH) |
| Body Configuration | 5 / 7 | 5 – Weld / 7 – Flanged |
| Stem Material | 7 / 8 | 7 – 410 SS / 8 – 17-4 PH SS |
| Gate/Wear Ring Material | 2 / 7 / 8 | 2 – Steel/Steel / 7 – 410 SS/410 SS / 8 – 17-4 PH SS/410 SS |
| Seat Ring Material | 1 | 1 – 410 SS |
| Seat/Seal Elastomer | 2 / 4 | 2 – Viton/Viton / 4 – HNBR/HNBR |
Seal Material Legend
- Bronze Bushing: ASTM B505 Alloy 93200 / SAE 660 – Provides low-friction stem guidance
- Flat Top Follower: Precision machined follower plate for even load distribution
- Fabric Reinforced Seal Ring: High-strength composite seal for reliable stem sealing
- Homogeneous Rubber Seal Ring: Uniform elastomer construction for bonnet sealing
- Flat Bottom Adapter: Precision sealing adapter for seat ring assembly
Applications
- High-volume production flowlines and manifolds
- Well testing and flowback operations
- Fracturing and stimulation manifold systems
- Christmas tree and wellhead installations
- High-pressure cementing and circulation services
- Gas lift and injection systems
- Large-diameter pipeline isolation
Why Choose 3-Inch Full Port Gate Valves?
The 3-inch full port design provides significantly higher flow capacity compared to smaller sizes, making it the ideal choice for production operations where flow efficiency directly impacts output. The DEMCO DM Series combines this large bore advantage with the same rugged API 6A construction and comprehensive testing standards that make DEMCO the industry standard for oilfield gate valves. With dual end connection options and multiple trim configurations, these valves can be tailored to specific operational requirements.
Contact us today for competitive pricing, technical support, and fast delivery of DEMCO DM Series 3-inch 7500 PSI full port gate valves for your oilfield operations.
Additional information
| Working Pressure | 7500 PSI WP |
|---|---|
| Valve Size | 3 in. (80 mm) Full Port |
| Valve Seat ID | 3.00 in. (76 mm) |
| End Connection | Weld End or Flanged End |
| Flange Specification | API Ring BX-154, 10,000 RTJ |
| Standard | API 6A, 17th Edition |
| Body Material | ASTM A487 Grade 4 Class D |
| Weight | 256 lb. (116 kg) Weld End / 323 lb. (147 kg) Flanged End |
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