M STS-2 API 6A Manual Slab-Style Gate Valve | SLB


API 6A manual slab-style gate valve

Gate Valves installed in the field.

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.


  • 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
M STS-2 API 6A Manual Slab-Style Gate Valve
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