© Copyright 03/31/2021 MOGAS Industries, Inc.
www.mogas.com
29
PREPARE FOR SEAT LEAK TEST
Use stem
07
to open ball
01
(counter-clockwise)
slightly. This will allow water to fill valve body cavity
from top and drain at bottom during seat leak testing.
15
TIGHTEN BODY NUTS
Secure valve during torquing.
Use a proper squence to tighten the body nuts
15
using a wrench.
When all body nuts are snug, use a torque tool and
continue the tightening sqeuence. Torque should
be applied to the specified values in three equal
steps utilizing a ‘star’ pattern, followed by one last
check applying the specified torque to each fastener
sequentially in a clockwise pattern.
16
CAUTION!
Torque the valve body bolting per the specifications
included with the
test certificate
for each
individual valve serial number.
!
15
FINGER-TIGHTEN GLAND NUTS
Install gland nuts
15
onto gland studs
14
. Only finger
tighten the nuts.
14
CAUTION!
The gland flange
must
be pushed in evenly to
prevent “cocking” or side loading, as this could
cause damage to the packing and prevent the
valve from operating properly.
Watch the gland flange to ensure that it remains
perpendicular
to the stem, and the gap around
the stem remains
concentric
during the tightening
process.
15
Re-Assembly
