DM GATE VALVE
(Interchangeable with Demco Model DM Gate Valve)
The DM Gate Valve, are solid gate, rising stem, gate valves with resilient seals. They are purpose made for mud, cement, fracturing and water service and are easy to operate and simple to maintain.
The DM Gate Valve, with superior design features precision workmanship and a proven principle are engineered to meet the harsh drilling requirements in today’s oilfield.
SPECIFICATION
● Designed specifically for Abrasive and Erosive use
● All Valves Have Stainless Steel Stems
● API 6A PSL 1, 2 and 3 available
● Gates can be supplied in Nickel-Plated Carbon Steel, Monel, Aluminum Bronze or Stainless Steel
● Stainless or Carbon Steel Inserts with Nitrile or HNBR Elastomer
● Factory Pressure Tested in Accordance with API.6A
● Can be supplied with Flanged End Connections, Hammer Union Ends, Threaded Connections or Butt Weld Ends
● Sour Service Models to NACE MR-01-75
● Available with Pressure Ratings up to 5,000 psi in 2", 3", 4", 5" x 4" and 6" x 4" Valve Sizes
● Full Material Traceability Guaranteed
● Supplied with Full Certification at no extra charge
APPLICATIONS
● Oil and Gas lines
● Wellheads
● Manifolds and Pipelines
● Crude Oil and Sour Gas
● Well Treating Chemicals
● Drilling Chemicals
● Water Flood Lines
● Abrasive Drilling Mud
| 2” FULL PORT 3000psi & 5000 psi WP |
 |
 |
 |
| 2”×5000 (3000) psi Butt Weld Ends |
2”×5000 (3000) psi Threaded Ends |
2”×5000 (3000) psi Flanged Ends |
 |
 |
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
1 |
Steel+NBR |
|
*3 |
Gate |
1 |
410 |
|
*4 |
Stem |
1 |
410 |
|
*5 |
Bonnet Seal |
1 |
NBR |
|
6 |
Down Stop Ring |
1 |
420 |
|
7 |
Bonnet |
1 |
4130 |
|
8 |
Body Stud Nut |
4 |
5140 |
|
9 |
Body Stud |
4 |
4140 |
|
*10 |
Stem Seal Assy. |
1 |
Assy. |
|
11 |
Stem Bushing |
1 |
Bronze |
|
*12 |
Sec. Seal |
1 |
NBR |
|
13 |
Retainer |
1 |
420 |
|
*14 |
Bearing |
2 |
Teflon |
|
*15 |
Stem Screw |
1 |
Steel |
|
16 |
Screw Housing |
1 |
Steel |
|
17 |
Bonnet Stud Nut |
2 |
5140 |
|
18 |
Bonnet Stud |
2 |
4140 |
|
*19 |
Stem Screw Seal |
1 |
NBR |
|
*20 |
Key |
1 |
Steel |
|
21 |
Hub Assy. |
1 |
Steel |
|
22 |
Tube |
1 |
Clear Acrylite |
|
23 |
Stem Cap |
1 |
Steel |
|
24 |
Lube Fitting |
1 |
Assy. |
|
|
*Major Repair------─ One Each For One Year’s Service
Assembly Drawing For DM GATE VALVE 2”×5000psi Butt Weld Ends (PDF)
Assembly Drawing For DM GATE VALVE 2”×5000psi Threaded Ends (PDF)
Assembly Drawing For DM GATE VALVE 2”×5000psi Flanged Ends (PDF)
| 3” FULL PORT 3000psi & 5000 psi WP |
 |
 |
 |
| 3”×5000 (3000) psi Butt Weld Ends |
3”×5000 (3000) psi Threaded Ends |
3”×5000 (3000) psi Flanged Ends |
 |
 |
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
1 |
Steel+NBR |
|
*3 |
Gate |
1 |
410 |
|
*4 |
Stem |
1 |
410 |
|
*5 |
Bonnet Seal |
1 |
NBR |
|
6 |
Bonnet |
1 |
4130 |
|
7 |
Body Stud Nut |
4 |
5140 |
|
8 |
Body Stud |
4 |
4140 |
|
*9 |
Stem Seal Assy. |
1 |
Assy. |
|
10 |
Stem Bushing |
1 |
Bronze |
|
*11 |
Sec. Seal |
1 |
NBR |
|
12 |
Retainer |
1 |
420 |
|
13 |
Screw Housing |
1 |
Steel |
|
14 |
Bonnet Stud Nut |
2 |
5140 |
|
15 |
Bonnet Stud |
2 |
4140 |
|
*16 |
Stem Screw |
1 |
Steel |
|
*17 |
Stem Screw Seal |
1 |
NBR |
|
18 |
Hub Assy. |
1 |
Steel |
|
19 |
Lock Handle |
1 |
Steel |
|
20 |
Pin-Lock Handle |
1 |
Steel |
|
21 |
Lube Fitting |
1 |
Assy. |
|
|
*Major Repair------─ One Each For One Year’s Service
Assembly Drawing For DM GATE VALVE 3”×5000psi Butt Weld Ends (PDF)
Assembly Drawing For DM GATE VALVE 3”×5000psi Threaded Ends (PDF)
Assembly Drawing For DM GATE VALVE 3”×5000psi Flanged Ends (PDF)
Assembly Drawing For DM GATE VALVE 3”×3000psi Flanged Ends (PDF)
| 4” FULL PORT 5000 psi WP |
 |
 |
 |
| 4”×5000psi Butt Weld Ends |
4”×5000psi Threaded Ends |
4”×5000psi Flanged Ends |
 |
 |
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
1 |
Steel+NBR |
|
*3 |
Gate |
1 |
410 |
|
*4 |
Stem |
1 |
410 |
|
*5 |
Bonnet Seal |
1 |
NBR |
|
6 |
Bonnet |
1 |
4130 |
|
7 |
Body Stud Nut |
4 |
5140 |
|
8 |
Body Stud |
4 |
4140 |
|
*9 |
Stem Seal Assy. |
1 |
Assy. |
|
10 |
Stem Bushing |
1 |
Bronze |
|
*11 |
Sec. Seal |
1 |
NBR |
|
12 |
Retainer |
1 |
420 |
|
13 |
Screw Housing |
1 |
Steel |
|
14 |
Bonnet Stud Nut |
2 |
5140 |
|
15 |
Bonnet Stud |
2 |
4140 |
|
*16 |
Stem Screw |
1 |
Steel |
|
*17 |
Stem Screw Seal |
1 |
NBR |
|
18 |
Hub Assy. |
1 |
Steel |
|
19 |
Lock Handle |
1 |
Steel |
|
20 |
Pin-Lock Handle |
1 |
Steel |
|
21 |
Lube Fitting |
1 |
Assy. |
|
|
*Major Repair------─ One Each For One Year’s Service
Assembly Drawing For DM GATE VALVE 4”×5000psi Butt Weld Ends (PDF)
Assembly Drawing For DM GATE VALVE 4”×5000psi Threaded Ends (PDF)
Assembly Drawing For DM GATE VALVE 4”×5000psi Flanged Ends (PDF)
| 4” FULL PORT 3000psi WP |
 |
 |
 |
| 4”×3000psi Butt Weld Ends |
4”×3000psi Threaded Ends |
4”×3000psi Flanged Ends |
|
|
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
1 |
Steel+NBR |
|
*3 |
Gate |
1 |
410 |
|
*4 |
Stem |
1 |
410 |
|
*5 |
Bonnet Seal |
1 |
NBR |
|
6 |
Bonnet |
1 |
4130 |
|
7 |
Body Stud Nut |
4 |
5140 |
|
8 |
Body Stud |
4 |
4140 |
|
*9 |
Stem Seal Assy. |
1 |
Assy. |
|
10 |
Stem Bushing |
1 |
Bronze |
|
*11 |
Sec. Seal |
1 |
NBR |
|
12 |
Retainer |
1 |
420 |
|
13 |
Screw Housing |
1 |
Steel |
|
14 |
Bonnet Stud Nut |
2 |
5140 |
|
15 |
Bonnet Stud |
2 |
4140 |
|
*16 |
Stem Screw |
1 |
Steel |
|
*17 |
Stem Screw Seal |
1 |
NBR |
|
18 |
Hub Assy. |
1 |
Steel |
|
19 |
Lock Handle |
1 |
Steel |
|
20 |
Pin-Lock Handle |
1 |
Steel |
|
21 |
Lube Fitting |
1 |
Assy. |
|
|
| *Major Repair------One Each For One Year’s Service |
Assembly Drawing For DM GATE VALVE 4”×3000psi Butt Weld Ends (PDF)
Assembly Drawing For DM GATE VALVE 4”×3000psi Threaded Ends (PDF)
Assembly Drawing For DM GATE VALVE 4”×3000psi Flanged Ends (PDF) |
