The Sankey Trunnion series ball valve can handle a vast variety of fluids, semisolid and almost any corrosive service on chemical, oil, petrochemical, gas, pulp, paper processing and other industries. Our standard valves with CFT seats are suitable for steam up to 18 bars.
Areas of application:
Chemical /Petrochemical/ Energy/ Oil and Gas /Cement
Body joint integrity and fire safety is ensured by dual independent seals
Standard cast body and end cap construction
All designs use 2 antistatic devices
Manual body vent design allows safe relief of pressure prior to servicing
Manual body drain can be used to safely drain or flush the valve prior to being serviced or removed from line
All trunnion ball valves are equipped with ISO 5211 actuator mounting flanges
All SANKEY™ trunnion ball valves are low emission capable due to the O-ring design
All O-rings are of AED (anti-explosive decompression) design
Stem Design Features:
Blow out proof stem.
Stems and trunnions are manufactured separately from the ball and supported by a bearing and thrust washer to ensure low consistent torques.
Triple independent low emission stem seals ensure stem seal integrity.
All valves include emergency secondary stem sealant injection system.
Seat Design Features:
Special wide seat insert design provides an increased life in difficult service conditions.
Seat ring sealing includes separate graphite seals for fire safe design and O-rings for tight sealing.
DBB – Double block and bleed design with self-relieving body cavity per API 6D.