M-1 Type Gate Valves
SWECO’s M-1 gate valves feature a non-rising stem with an expanding gate design for safe and dependable service in any environment. They are available in flanged ends in standard bore sizes.
Specifications
10,000 psi
|
Flange Size |
A |
B |
C |
D |
| 1 13/16" | 18.25" | 14.50" | 21.00" | 14" |
| 2 1/16" | 20.50" | 15.62" | 23.50" | 19" |
| 2 9/16" | 22.25" | 18.00" | 25.88" | 19" |
Trim Chart
|
Service Condition |
Trim |
Body |
Bonnet |
Gate |
Seat |
Stem |
| General, Non-Corrosive | AA | Alloy | Alloy | Alloy | Alloy | Alloy |
| General, Slightly Corrosive | BB | Alloy | Alloy | 410 SS Hardface | 410 SS Hardface | 17-4 PH |
| General, Moderately Corrosive | CC | 410 SS | 410 SS | 410 SS Hardface | 410 SS Hardface | 17-4 PH |
| Sour, Non-Corrosive | DD | Alloy | Alloy | Alloy | Alloy | 17-4 PH |
| Sour, Slightly Corrosive | EE | Alloy | Alloy | 410 SS Hardface | 410 SS Hardface | 17-4 PH |
| Sour, Moderately Corrosive | FF | 410 SS | 410 SS | 410 SS Hardface | 410 SS Hardface | 17-4 PH |