The Lift-Type Check Valve is supplied as a project-selected pressure-control component. Its body, trim, seals, actuation and end connections are reviewed against the operating medium, pressure, temperature, duty cycle and applicable purchase specification.
Technical features
Automatic non-return function
Swing, top-entry, lift, flapper or R-type closure
Serviceable internal trim
Low pressure-drop configurations
Metal or resilient sealing as selected
Horizontal or vertical installation subject to design
Materials and seals selected for standard or sour service
Pressure-shell, seat and functional testing to the approved inspection plan
Typical applications
Wellheads and Christmas trees
Choke, kill and process manifolds
Drilling, completion and well-testing systems
Production, stimulation and pressure-pumping service
TECHNICAL SPECIFICATION
Project-selection basis
Design basis
API 6A / ISO 10423 where applicable and specified; final edition and scope confirmed by the approved purchase specification
Bore / nominal size
Product-specific standard and project sizes
Rated working pressure
Selected for the approved operating envelope; commonly 2,000–20,000 psi depending on design
Temperature class
Selected for minimum and maximum design temperature
Material class
AA–HH or project-specific metallurgy according to service fluid
PSL / PR
PSL 1–4 and PR1 / PR2 where applicable and specified
End connections
Flanged, studded, threaded, hub or other approved connection; API requirements apply only where specified
Operation
Manual, hydraulic or pneumatic according to product type
Documentation
Approved drawings, MTCs, NDE, pressure and functional-test records, and traceability dossier as agreed
Energy Equipment International supplies valves against approved project requirements. Product configuration, dimensions, pressure and temperature ratings, materials, certification, interchangeability and performance are subject to the approved quotation, datasheet, drawings and test documentation.
