DEMCO DM Series Low Pressure Gate Valves rated for 2000, 3000 & 5000 PSI WP. Available in 2 in. Full Port and 2-1/2 in. Reduced Port with Threaded, Grooved, Weld, and Flanged end connections. Multiple material, seal, and coating options.
DEMCO DM Series Gate Valves 2000, 3000 & 5000 PSI WP – 2 in. Full Port & 2-1/2 in. Reduced Port
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Available on backorder
Available on backorder
Description
DEMCO DM Series Low Pressure Gate Valves – 2000, 3000 & 5000 PSI WP
The DEMCO DM Series Low Pressure Gate Valves offer versatile, cost-effective flow control solutions for general service conditions in the oilfield industry. Available in three pressure ratings — 2000 PSI, 3000 PSI, and 5000 PSI — and two valve sizes — 2 in. (50 mm) Full Port and 2-1/2 in. (65 mm) Reduced Port — these gate valves provide reliable performance for a wide range of upstream, midstream, and downstream applications.
Unlike the high-pressure 7500 PSI DM Series, these low-pressure models feature four end connection options: Threaded, Grooved, Weld, and Flanged (RTJ), giving maximum flexibility for different piping systems. The valves are available with multiple body configurations, material options, and coating choices to suit various service environments from standard hydrocarbon to sour gas applications.
Key Features & Benefits
- Multiple Pressure Ratings: 2000 PSI, 3000 PSI, and 5000 PSI WP to match different application requirements
- Dual Valve Sizes: 2 in. (50 mm) Full Port and 2-1/2 in. (65 mm) Reduced Port options
- Four End Connections: Threaded, Grooved, Weld, and Flanged (RTJ) for maximum installation flexibility
- Multiple Body Configurations: Threaded (4), Weld (5), Grooved (6 – 2000 PSI only), and Flanged (7)
- Stainless Steel Trim Options: 303 SS and 316 SS stem and gate materials
- Flexible Sealing: Buna-N, Viton, and Hypalon elastomer options for different media compatibility
- Protective Coatings: DEMCO 10, DEMCO 11, and DEMCO 12 coating options for corrosion resistance
- Repair Kit Availability: Major Repair Kit (J025091-10221) for one year’s service
Dimensional Data & Weights
2 in. (50 mm) Full Port & 2-1/2 in. x 2 in. (65 mm x 50 mm) Reduced Port
| Dimension | 2000 WP – 4000 Test | 3000 WP – 6000 Test | 5000 WP – 7500 Test |
|---|---|---|---|
| A – Threaded, Weld & Grooved | 9.00″ (229 mm) | 9.00″ (229 mm) | 9.00″ (229 mm) |
| A – Flanged – RTJ | 11.62″ (295 mm) | 11.62″ (295 mm) | 12.12″ (308 mm) |
| Flange OD | 6.50″ (165 mm) | 8.50″ (216 mm) | 8.50″ (216 mm) |
| Flange Bolts (Qty – Size) | 8 – 5/8″ | 8 – 7/8″ | 8 – 7/8″ |
| Ring Number (RTJ) | R-23 | R-24 | R-24 |
| Overall Height (Open) | 13.00″ (330 mm) | 13.00″ (330 mm) | 13.00″ (330 mm) |
| Overall Width | 14.00″ (356 mm) DIA | 14.00″ (356 mm) DIA | 14.00″ (356 mm) DIA |
| Valve Seat ID (Full Port) | 2.00″ (51 mm) | 2.00″ (51 mm) | 2.00″ (51 mm) |
| Bonnet Height | 2.62″ (67 mm) | 2.62″ (67 mm) | 2.62″ (67 mm) |
Weight Specifications
| Connection Type | 2000 PSI | 3000 PSI | 5000 PSI |
|---|---|---|---|
| Threaded, Weld, Grooved | 56 lb (25 kg) | 58 lb (26 kg) | 58 lb (26 kg) |
| Flanged | 70 lb (32 kg) | 100 lb (45 kg) | 110 lb (50 kg) |
Standard Weld End Suffixes by Pipe Size
| Pipe Size | 2000 psi | 3000 psi | 5000 psi |
|---|---|---|---|
| 2 in. (50 mm) | 0 & 1 | 1 & 5 | 1, 2 & 5 |
| 2-1/2 in. (65 mm) | 0 & 1 | 1 & 5 | 1, 2 & 5 |
Suffix codes: 0 – LP, 1 – Sch 80, 2 – XXH, 5 – Sch 160
Assembly Part Number Configuration
| Code Position | Description | Options |
|---|---|---|
| 1st Digit | End Connection | 0 – Flanged (2000 RTJ) | 1 – 3000 RTJ | 2 – 5000 RTJ | 0 – LP Threaded | 0 – Sch 80 Grooved | 0 – Sch 40 Weld |
| 2nd Digit | Body Configuration | 4 – Threaded | 5 – Weld | 6 – Grooved (2000 only) | 7 – Flanged |
| 3rd Digit | Stem Material | 2 – 303 SS | 8 – 316 SS |
| 4th Digit | Gate Material | 2 – Steel | 8 – 316 SS |
| 5th Digit | Insert Material | 1 – Ductile Iron | 8 – 316 SS |
| 6th Digit | Seat/Seal Elastomer | 1 – Buna-N/Buna-N | 2 – Viton/Viton | 3 – Hypalon/Buna-N |
| 7th Digit | Coating | 0 – Uncoated | 1 – DEMCO 10 | 4 – DEMCO 11 | 5 – DEMCO 12 |
Example: J0XXXXX = Assembly Base Number. Weld end bodies are not coated. Consult factory for additional trim options.
Seal & Elastomer Options
- Buna-N (Nitrile): Standard general-purpose elastomer suitable for most oil and gas applications. Temperature range: -40°F to 250°F (-40°C to 121°C).
- Viton (FKM): High-performance fluoroelastomer for elevated temperatures and aggressive hydrocarbon service. Temperature range: -20°F to 400°F (-29°C to 204°C).
- Hypalon (CSM): Superior chemical and ozone resistance for specialized applications. Temperature range: -40°F to 275°F (-40°C to 135°C).
Body Materials
- Threaded, Weld & Grooved: ASTM A105 Normalized carbon steel
- 2000 PSI Flanged: Fabricated from Weld End Body and Commercial Flanges
- 3000 PSI Flanged: ASTM A216 Grade WCB cast carbon steel
- 5000 PSI Flanged: ASTM A487 Grade 4A or 2B cast steel
Coating Options
- DEMCO 10: Standard protective coating for general service
- DEMCO 11: Enhanced corrosion resistance for harsh environments
- DEMCO 12: Maximum protection for severe service conditions
Typical Applications
- Low to medium pressure flowline systems
- Water injection and disposal well manifolds
- Production gathering and transfer lines
- Refinery and petrochemical process piping
- Pipeline isolation and bypass systems
- General industrial fluid control applications
Why Choose DEMCO DM Series Low Pressure Gate Valves?
DEMCO DM Series low pressure gate valves deliver proven reliability and cost-effective performance for general service conditions. With multiple pressure ratings, end connections, and material configurations, these valves can be tailored to meet the specific requirements of your application. The comprehensive parts list and repair kit availability ensure long-term maintainability and reduced total cost of ownership.
Contact Us
For inquiries, pricing, and technical support, please contact us:
- Email: SALES@CPOSL.COM
- WhatsApp: 86-18621723891
Additional information
| Working Pressure | 2000 PSI WP / 3000 PSI WP / 5000 PSI WP |
|---|---|
| Valve Size | 2 in. (50 mm) Full Port / 2-1/2 in. (65 mm) Reduced Port |
| Port Type | Full Port / Reduced Port |
| End Connection | Threaded / Grooved / Weld / Flanged (RTJ) |
| Body Material | ASTM A105 / ASTM A216 WCB / ASTM A487 Grade 4A |
| Stem Material | 303 SS / 316 SS |
| Seal Options | Buna-N / Viton / Hypalon |
| Coating Options | DEMCO 10 / DEMCO 11 / DEMCO 12 |
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