The JVS Model L - Sliding Sleeve is a down - hole valve to establish communication when
desired, between the tubing and annuals. Selective and / or TOP NOGO locking
devices are available for use with the sleeve. It has seal bores above and
bellow the parts, and TOP NOGO shoulder and locking grooves. The shoulder and
groove are utilized in Top NoGo landing and the groove only in selective locating
and landing. The L Sliding Sleeve locates, seals, and retains flow control accessories that
have either TOP NOGO or Selective locks.
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