•  The needle and core are made of hard alloy, with performances of wearing resistance, washing resistance and corrosion resistance.

•  The external sleeve choke valve has advantages of low switch torque, throttling and shutting fluid.

•  Working Pressure: 2000PSI～20000PSI

•  Nominal Bore: 1.13/16"～7.1/16" (46mm～180mm)

•  Working Medium: oil、natural gas、mud and gas containing H2S、CO2

•  Working Temperature: -46°C～121°C（Class LU）

•  Material Class: AA、BB、CC、DD、EE、FF、HH

•  Specification level: PSL1-4

•  Performance Requirement: PR1-2