DEMCO DM Series Gate Valves 2000, 3000 & 5000 PSI WP – 2-1/2 in., 3 in. Full Port & 4 in. Reduced Port. Multiple end connections: threaded, grooved, weld, and flanged RTJ. Complete parts and repair kits available.
DEMCO DM Series Gate Valves 2000, 3000 & 5000 PSI WP – 2-1/2 in. (65 mm), 3 in. (80 mm) Full Port & 4 in. (100 mm) Reduced Port
Description
DEMCO DM Series Low Pressure Gate Valves – Complete Range
CAMTOP supplies the complete range of DEMCO DM Series Gate Valves rated at 2000, 3000 & 5000 PSI WP for general service conditions. This comprehensive series covers 2-1/2 in. (65 mm) Full Port, 3 in. (80 mm) Full Port, and 4 in. (100 mm) Reduced Port configurations, with multiple end connection options including threaded, grooved, weld, and flanged ends.
Designed for reliable performance in oilfield flowline applications, these gate valves feature a robust construction with cast steel bodies, stainless steel stems, and multiple trim material options to suit various service conditions. The modular design allows easy field maintenance and parts replacement.
Product Specifications & Dimensions
Dimensional Data & Weights
| Dimension | 2-1/2″ (65mm) FP 2000 WP |
3″ (80mm) FP 2000 WP |
2-1/2″ (65mm) RP 3000 WP |
3″ (80mm) FP 3000 WP |
4″ (100mm) RP 3000 WP |
3″ (80mm) FP 5000 WP |
4″ (100mm) RP 5000 WP |
|---|---|---|---|---|---|---|---|
| A – Threaded, Weld & Grooved | 9.75″ (248) | 9.75″ (248) | 11.00″ (279) | 11.00″ (279) | – | 11.00″ (279) | – |
| A – Flanged RTJ | 16.62″ (422) | 14.12″ (359) | 16.62″ (422) | 14.12″ (359) | – | 15.62″ (397) | – |
| B (Open) | 17.00″ (432) | 18.00″ (457) | 17.00″ (432) | 18.00″ (457) | 18.00″ (457) | 18.00″ (457) | 18.00″ (457) |
| C (Seat Bore) | 2.50″ (64) | 3.00″ (76) | 2.50″ (64) | 3.00″ (76) | 3.00″ (76) | 3.00″ (76) | 3.00″ (76) |
| D | 19.00″ (483) | 19.00″ (483) | 19.00″ (483) | 19.00″ (483) | 19.00″ (483) | 19.00″ (483) | 19.00″ (483) |
| E – Threaded, Weld & Grooved | 3.12″ (79) | 3.50″ (89) | 3.25″ (83) | 3.69″ (94) | 3.69″ (94) | 3.94″ (100) | 3.94″ (100) |
| E – Flanged RTJ | 3.19″ (81) | 3.50″ (89) | 3.19″ (81) | 3.69″ (94) | 3.69″ (94) | 3.94″ (100) | 3.94″ (100) |
| Flange OD | 7.50″ (191) | 8.25″ (210) | 9.62″ (244) | 9.50″ (241) | – | 10.50″ (267) | – |
| Flange Bolts (Qty – Size) | 8 – 3/4″ | 8 – 7/8″ | 8 – 3/4″ | 8 – 7/8″ | – | 8 – 1″ | – |
| Ring Number (RTJ) | R-26 | R-31 | R-27 | R-31 | – | R-35 | – |
| Weight – Threaded, Weld & Grooved (lb/kg) | 74 (34) | 95 (43) | 87 (39) | 113 (51) | 113 (51) | 140 (64) | 140 (64) |
End Connection Options
| Connection Type | Description | Available Sizes |
|---|---|---|
| Threaded | NPT threaded ends for easy installation | 2-1/2″ FP, 3″ FP, 4″ RP (all pressure ratings) |
| Grooved | Grooved ends for quick coupling (2000 PSI only) | 2-1/2″ FP, 3″ FP, 4″ RP |
| Weld End | Butt weld ends for permanent installation | 2-1/2″ FP, 3″ FP, 4″ RP (all pressure ratings) |
| Flanged RTJ | API Ring Type Joint flanged ends | 2-1/2″ FP, 3″ FP (all pressure ratings) |
Standard Weld End Suffixes
| Pipe Size | 2000 PSI | 3000 PSI | 5000 PSI |
|---|---|---|---|
| 2-1/2 in. (65 mm) | 0 & 1 | 1 & 5 | – |
| 3 in. (80 mm) | 0 & 1 | 1 & 5 | 1, 2 & 5 |
| 4 in. (100 mm) | 0 & 1 | 1 & 5 | 1, 2 & 5 |
Assembly Part Number Configuration
DEMCO DM Series valves use a 7-digit part number system (J0XXXXX) to specify exact valve configuration:
| Digit Position | Configuration | Options |
|---|---|---|
| 1st Digit | End Connection | 0 – Flanged / 1 – Threaded / 4 – Grooved (2000 only) / 5 – Weld / 7 – Flanged |
| 2nd Digit | Pressure Rating | 0 – 2000 PSI / 1 – 3000 PSI / 2 – 5000 PSI |
| 3rd Digit | Pipe Size | 1 – TBG (3″ FP only) / 2 – UPTBG (2-1/2″ FP only) / 0 – Sch 80 (2000 only) / 1 – Sch 80 / 2 – XXH / 5 – Sch 160 |
| 4th Digit | Body Configuration | 4 – Threaded / 5 – Weld / 6 – Grooved (2000 only) / 7 – Flanged |
| 5th Digit | Stem Material | 2 – 303 SS / 8 – 316 SS |
| 6th Digit | Gate Material | 2 – Steel / 8 – 316 SS |
| 7th Digit | Insert Material | 1 – Ductile Iron or Steel / 8 – 316 SS |
Additional Configuration Options:
- Seat/Seal Elastomer: 1 – Buna-N/Buna-N / 2 – Viton/Viton / 3 – Hypalon/Buna-N
- Coating: 0 – Uncoated / 1 – DEMCO 10 / 4 – DEMCO 11 / 5 – DEMCO 12 (Weld end bodies are NOT coated)
Key Parts & Materials
| Key No. | Description | Material |
|---|---|---|
| 1 | Lube Fitting | Steel |
| 2 | Hub Assembly | ASTM A536 Ductile Iron |
| 4 | Lock Handle | AISI C1213 |
| 6 | Stem Screw | AISI C1213 |
| 7 | Stem Screw Seal | Buna-N |
| 8 | Screw Housing | Carbon Steel |
| 9 | Stem | 303 SS or 316 SS |
| 10 | Secondary Seal | Buna-N |
| 11 | Retainer | AISI C1213 |
| 12 | Stem Seal Assembly | Buna-N or Viton |
| 16 | Bonnet | Cast Steel ASTM A487 4A or 2B |
| 18 | Bonnet Seal | Buna-N or Viton |
| 19 | Gate | Steel or 316 SS |
| 20 | Body | ASTM A487 Grade 4 Class A or Grade 2 Class B |
| 21 | Seat Assembly | Ductile Iron or Steel / 316 SS |
Seal Material Options
| Seal Type | Material | Application |
|---|---|---|
| Bronze Bushing | Bronze | Stem guide bearing |
| Flat Top Follower | Buna-N / Viton | Stem seal follower |
| Fabric Reinforced Seal Ring | Fabric-reinforced elastomer | High-pressure stem seal |
| Homogeneous Rubber Seal Ring | Buna-N / Viton / Hypalon | Bonnet and seat seals |
| Flat Bottom Adapter | Buna-N / Viton | Seat seal adapter |
Applications
- Flowline Systems: Production flowlines, gathering lines, and distribution manifolds
- Wellhead Equipment: Christmas tree isolation and choke manifold connections
- Production Facilities: Separator inlets/outlets, treater connections, and tank battery piping
- Water Injection: Water flood distribution systems and injection well manifolds
- Gas Processing: Low-pressure gas gathering and processing plant piping
- General Service: Any application requiring reliable on/off flow control at 2000-5000 PSI
Why Choose CAMTOP DEMCO DM Series Gate Valves?
- Complete Size Range: 2-1/2″, 3″ Full Port and 4″ Reduced Port options
- Multiple Pressure Ratings: 2000, 3000, and 5000 PSI to match your system requirements
- Flexible End Connections: Threaded, grooved, weld, and flanged RTJ options
- Modular Design: Easy field maintenance with interchangeable trim components
- Multiple Material Options: 303 SS or 316 SS stems, steel or 316 SS gates
- Seal Compatibility: Buna-N, Viton, and Hypalon seal options for various fluids
- Coating Options: DEMCO 10, 11, 12 coatings for corrosion resistance (except weld ends)
- Repair Kits Available: Major repair kits for one year’s service
Contact Us
CONTACT US: SALES@CPOSL.COM
WHATSAPP: 86-18621723891
Additional information
| Working Pressure | 2000 PSI, 3000 PSI, 5000 PSI |
|---|---|
| Valve Size | 2-1/2 in. (65 mm) Full Port, 3 in. (80 mm) Full Port, 4 in. (100 mm) Reduced Port |
| End Connection | Threaded, Grooved, Weld End, Flanged RTJ |
| Body Material | ASTM A487 Grade 4 Class A, ASTM A487 Grade 2 Class B |
| Stem Material | 303 SS, 316 SS |
| Seal Material | Buna-N, Viton, Hypalon |
| Coating | Uncoated, DEMCO 10, DEMCO 11, DEMCO 12 |
| Application | Flowline Systems, Wellhead Equipment, Production Facilities, Water Injection, General Service |
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