172-65528A-01 (VS3-E/VS3-P/VS3-EP) 8 Jul 2015
14
Disassembly/Reassembly
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury
or damage to property and equipment.
WARNING
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble.
(Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.)
Detaching / Reattaching the Body and the Cover
Part
During Disassembly
During Reassembly
Fig. A
Clamp Bolts /
Nuts
Body Clamp
Loosen clamp nuts with a
tool such as an adjustable
wrench, then remove the
body clamp
Tighten clamp nut to the
proper torque
Grooves
Body / Cover
Remove, being careful not
to scratch the surface
With gasket in place, align
grooves and gently place
the body on the cover (Fig.
A)
Cover Gasket
-
Replace with a new gasket
if damaged
Detaching / Reassembly of Components Inside the Body / Cover
Part
During Disassembly
During Reassembly
Fig. B
Float
Remove being careful not to
scratch the polished
surfaces of the float, the
body and the cover
Insert into body/cover, being
careful not to scratch its
polished surface, take care
not to scratch or damage
the seating surface of the
valve seat (Fig. B)
Valve Seat
Body
Table of Tightening Torques
Part Name
Torque
N
·
m (lbf
·
ft)
Distance Across Flats
mm (in)
Clamp Bolts / Nuts
10 (7)
13 (
1
/
2
)
(1 N
⋅
m
≈
10 kg
⋅
cm)
