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Crown Swing Check Valves
• simple, dependable design
• full bore for passage of pigs
• butt weld, raised face and RTJ ends
• wide range of options and accessories

Crown Wafer Nozzle Check Valves
Subsea Check Valves
Actuated Check Valves
Crown Pigging Tees
Crown-Europa Nozzle Check Valves
Crown Piston Check Valves
•non-slam
•axial flow
•low pressure drop
•space-saving design
•available for vertical flow-up or down service
•economical
•space-saving design
•suitable for vertical flow-up service
•clapper opens in downstream piping
•lock open levers
•worm gear operators
•handwheel extensions
•pneumatic, hydraulic and electric actuators
•available in alloy steel for flanged, weld end & threaded end connections for sizes 2”, 3” & 4”
•ductile iron tees in threaded end connections available in sizes 2” & 3”
•working pressure is up to 2000 psi in either right angle or inline designs
•flange connections are stocked in Schedule 40 but are also available in Schedule 80

•non-slam
•axial flow
•low maintenance costs
•provides energy savings due to low pressure drops
•sizes up to 60” available
•ROV interfaces
•lock open levers
•worm gear operators
•various gland designs
•axial flow
•raised face and RTJ ends
•simple, dependable design
•available for vertical flow-up or down service
Crown Wafer Check Valves
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