M Pow-R-Seal

API 6A expanding gate valve

a set of three DEMCO gate valves in the field

The Cameron Model M Pow-R-Seal gate valve features an expanding, wedge-type gate; a non-rising stem; and metal-to-metal seal technology throughout. It provides safe, dependable service in applications from 2000 to 5000 psi, and is available in sizes between 2-1/16” and 4-1/16”, with either flanged, threaded or clamp-hub end connections. The Model M Pow-R-Seal valve has a cast valve body, and is trimmed for several types of oilfield services, including sour gas.

Features and Benefits:

  • Bi-directional design with a preferred direction of installation indicated, which provides reduced operating torque
  • Metal-to-metal seal (gate-to-seat and seat-to-body)
  • Expanding gate design creates a positive mechanical seal across the seats with or without line pressure
  • Full-bore, through-conduit gate-to-seat seal increases valve life by virtually eliminating turbulence and pressure drop
  • Seat skirts reduce loss of body lubricants
  • Thrust bearings are isolated from well fluid
  • Stem packing can be re-energized with valve under pressure
  • Seats, gates, stems and other working parts are field replaceable
  • Cast body 
  • Metal-to-metal bonnet seal
Diagram of WKM Model M Pow-R-Seal gate valve