Operating & Service Manual 1 OPS-814 Rev.00
Section 1 Warnings
The VERSA-SLAB
TM
Gate Valve is a bi-direction non-rising stem manual operated valve incorporating a
floating gate and seats design. The gate is connected to the stem through a barrel lift nut in the gate. This
arrangement permits the gate to float freely and enhance a pressure assisted seal when acted on by the
differential pressure across the gate.
The bonnet is bolted to the valve body and pressure integrity is achieved by means of a metal ring gasket.
Pressure energized U-type stem packing are used to isolate high pressure in the valve cavity. The stem has a
selective back seat feature to facilitate replacement of stem packing in the field when the valve cannot be
removed from service.
The gate is actuated by rotation of the stem-opening (counter-clockwise rotation) and closing (clockwise
rotation).
The bonnet is equipped with a ½” NPT grease/injection fitting for lubrication of the valve cavity and the bonnet
cap has a standard grease zerk for lubrication of the stem bearing assembly.
ALL OPERATORS AND MAINTENANCE PERSONNEL SHOULD BE THOROUGHLY TRAINED IN THE SA-
FE OPERATION, MAINTENANCE, AND INSPECTION OF THIS EQUIPMENT.
