Val-Matic 3 Way Plug Valve - Manual (Page 8)

SIZE TORQUE (FT-LBS)
3/8"-16 20 - 30
7/16"-14 30 - 50
1/2"-13 45 - 75
5/8"-11 100 - 150
3/4"-10 150 - 250
7/8"-9 200 - 350
1"-8 300 - 500
1 1/8"-7 450 - 700
1 1/4"-7 650 - 1000
REASSEMBLY
All parts must be cleaned and gasket surfaces
should be cleaned with a stiff wire brush in the
direction of the serrations or machine marks. Worn
parts, gaskets and seals should be replaced during
reassembly. Bolts should be lubricated and torqued
per Table 3 during reassembly.
TABLE 3. LUBRICATED BOLT TORQUES
1. Press new bearings (6) into cover and body with
round, flat bar 1/4" below inside surfaces of
body (1) and cover (2). Apply a 1/16” bead of
3M DP-190 2-Part Epoxy in the 1/4” recess
above the sleeve bearings and press in Grit
Seals (21) and allow to set for 1 hour.
5. Install cover seal (8) over cover lip.
6. Apply thin film of FDA silicone grease such as
Dow Corning #7 to plug rubber surface. With
the valve in the upright position, lower the plug
into one of the body seats and guide the bottom
shaft into the bottom grit seal and bearing in the
body. Do not force plug down into body seat.
7. Install cover (2) over plug shaft and into recess
in body (the plug may need to be lifted so that
the cover can be centered. Align match marks
between body and cover (2). Torque cover bolts
(15) per Table 6.
8. Lubricate ID and OD of packing set with FDA
grease and install in packing bore one ring at a
time taking care to keep lips pointing down
toward plug. Reinstall follower, gland bolts, and
2 shims per bolt.
9. Install nuts (12) and first support plate over
studs (13). Install Thrust bearing halves (22)
into recess in support plate. Install second
support plate and nuts.
2. Insert key (24) into shaft and place actuator over
valve. Reinstall actuator mounting bolts and
torque per Table 6. Install cover on actuator.
3. Apply power to actuator and cycle valve. Apply
pressure to valve and check for cover and shaft
leakage. Tighten bolts as necessary. Adjust
packing if necessary.
4. If valve does not shut off tight, rotate the plug to
the right and left to find the center of the seat. If
the leak persists adjust the thrust bearing to
lower the plug. Adjust the leveling nuts 1/2 turn
at a time.
PARTS AND SERVICE
Parts and service are available from your local
representative or the factory. Make note of the valve
Size, Series No, and Serial No. located on the valve
nameplate and contact:
Val-Matic Valve and Mfg. Corp.
905 Riverside Drive
Elmhurst, IL 60126
PH: 630/941-7600
FAX: 630/941-8042
A sales representative will quote prices for parts or
arrange for service as needed.