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API Valve

Bi-directional slab gate, metal-to-metal sealing technology and stem backseating capability. Ideally suited for drilling manifolds, Christmas trees and severe service. Simple in-line field replacement of internal components.
  • Weir Oil & Gas Services offers a full range of valves for drilling and production operations
  • Gate valves are designed and manufactured in accordance with API 6A latest edition PSL 1-4
  • Robust, simple and reliable gate and seat design promotes ease of service with in-line maintenance
  • Positive metal-to-metal sealing (gate-to-seat and seat-to-body)
  • Stem packing is chemically inert, using spring energizing rings which require no adjustment or plastic injection
  • Stem packing can be replaced whilst the valve is under pressure
  • Available in API Material Classes AA through HH
  • Material for H2S and CO2 service is in accordance with NACE MR-01-175 latest edition
  • Performance tested to PR2, temperature ratings K through X up to 350°F

Key features/benefits 

  • Pressures up to 15,000 PSI for various sizes
  • Metal-to-metal seals – seals are stable, thermally insensitive and environmentally resistant; utilised in the gate/seat, body/bonnet and stem/bonnet backseat
  • Selective backseat – provides unparalleled safety during venting, lubrication and stem packing replacement; allows stem packing replacement without removing valve from service
  • Slab gate – assures smooth operation during extreme thermal cycles
  • Floating seats – allows bi-directional use
  • Threaded packing gland – transfers stem packing loads to the bonnet, protecting the bearing assemblies
  • No body penetration
  • Non-rising stem
  • Stem shear pin
  • In-line repairability