TITLE:
NO.:
KEROTEST MODEL-1
REV.: 10
GATE VALVE
DATE: 7/12/07
OPERATIONS MANUAL
PAGE: 20 OF 35
This report is the property of Kerotest Manufacturing Corp. 5500 Second Avenue, Pittsburgh, PA 15207 and may not be
copied by any means without the expressed written consent of Kerotest. It is intended for the sole purpose of helping
Kerotest customers evaluate Kerotest products and may not be released to any third party or otherwise used in any
manner injurious to the interests of Kerotest
.
PRIMARY REPACKING PROCEDURE – LATEST DESIGN
WITH STEM WEATHER SEAL (AFTER 1987)
CONDITION 1 – VALVE UNDER PRESSURE
Note:
A slight leak in the backseat seal can cause difficulty in replacing the v-rings; a
straightened paper clip or smooth wire can be used on the side of the v-rings to allow
pressure to vent until the adapter can be quickly inserted and the gland bolted down.
10.
Place upper thrust washer (7) on stem (11) if removed. Install weather seal o-ring (5) in
stem groove. Position gasket (6) and gland, with weather seal lead-in chamfer side
down, on cover, being careful not to cut o-ring. Insert cap screws (3) fully and tighten to
torque shown in Table I. Place operating square (2) on stem and then secure with nut
(1).
Valve is ready for service.
