Article How It Works: Gate Valves
Stop, allow, or throttle the flow of process fluid with very low friction loss.
M STS-2
API 6A manual slab-style gate valve
The Cameron M STS-2 gate valve delivers outstanding sealing performance across a wide range of conditions. This gate valve is available in sizes from 2 1/16 through 4 1/16 in, with pressure ratings from 2,000 to 5,000 psi, and with either flanged or threaded connections. The M STS-2 gate valve is available in trims for most types of oilfield service, including sour gas.
Advantages
- Fullbore, through-conduit API gate valve
- Slab gate design
- Bidirectional design
- Metal-to-metal sealing at the gate-to-seat and seat-to-body seals
- Stem packing that can be reenergized with valve under pressure
- Seat skirts that reduce loss of valve body lubricant
- Field-replaceable seats, gates, stem, and other working parts
- Thrust bearings that are isolated from well fluid
- Cast valve body
- API Spec 6A PR-2 qualification
| Nominal Bore Size, in |
Working Pressure, psi |
||
| 2,000 | 3,000 | 5,000 | |
| 2 1/16 | x | x | x |
| 2 9/16 | x | x | x |
| 3 1/8 | x | x | x |
| 4 1/16 | x | x | x |
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