I&M No.7544-Sec. 2
Page 6 of 8 (Section 2 of 2)
50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com
piston end guide
resilient main disc
( resilient side to face out )
shaft nut
body
piston end body
body gasket ( 2 )
body u-cup
( mouth or open
end to face main
valve body )
guide u-cup
( mouth or open
end to face piston
end body )
Indicates that these
parts are included
in Rebuild Kit
screw (4)
resilient main disc
( resilient side to face out )
gasket
body
4-40 machine screw
serves as a tool to
remove insert from
valve body. Remove
screw from insert
before reassembling.
lower insert gasket
(see Note)
pilot orifice
Do Not Damage
CAUTION
Note:
Upper and middle insert gaskets snap in grooves
of insert. Lower insert gasket fits between the
recess in the lower corner of the insert and
the lower corner of the pilot insert bore. Middle
and lower insert gaskets are the same size,
however, the lower gasket is made of a softer
material.
bonnet gasket
disc holder spring
disc holder sub-assembly
upper insert
insert
lower insert gasket
(see Note )
middle insert gasket
gasket
Insert brass rod into cross hole
in main shaft to keep shaft from
turning when removing or replacing
shaft nut. Do not damage shaft
or burr edges of hole.
Figure 3. Series 8344, 1/4
or 3/8
NPT valve with 1/4
orifice.
seat
seat
main valve
main
shaft
guide gasket
( seats on piston
end guide )
shaft gasket
piston
seat
( large )
( small )
gasket
guide gasket
( seats in counterbore of
main valve body )
solenoid base
sub-assembly
core guide
core assembly
with core spring
