172-65120MA-13 (CK-Series) 24 Aug 2020
9
Disassembly/Reassembly
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.)
Disassembly/Reassembly of Check Valve
CK3M/CK3T/CK3R/CK3T
−M
Body
Coil Spring
Valve Disc
Union Gasket
Inlet Union
Spring Holder
CK3MG
Body
Coil Spring
Valve Disc
Union Gasket
Inlet Union
Part
During Disassembly
During Reassembly
Inlet Union
Remove with a wrench
Coat threads with anti-seize and tighten to the
proper torque
Union
Gasket
Remove the union gasket
Replace with a new gasket if warped or
damaged; make sure the gasket does not get
pinched when tightening the inlet union
Valve Disc
Remove the valve disc
Insert, making sure the polished surface is
facing the inlet union
Coil Spring
Remove the coil spring
CK3M/CK3T/CK3R/CK3T-M: Insert into
housing
CK3MG: Place the coil spring on the disc stem
Spring
Holder
(not CK3MG)
This part is inserted tightly in
the body, and is not meant to
be removed
—
CKF3M/CKF3R/CKF3MG/CKF3RG
Assembly/disassembly are not possible for these models as special equipment is
required. Accordingly, replacement parts are not available for these models.
