Servicing first and second check valves, 3" 007dcda – Watts 007M1DCDA User Manual
Page 3
Servicing First and
Second Check Valves
2" – 3" 007DCDA
Replacement Parts
2", 2
1
⁄
2
", 3" 007DCDA
When ordering, specify Ordering Code, Kit number and Valve Size.
1. Remove cover bolts and cover.
2. Remove the retainer from the body bore. The check valve
modules can now be removed from the valve by hand or
with a screwdriver.
3. The check seats are attached to the cage with a bayonet
type locking arrangement. Holding the cage in one hand,
push the seat inward and rotate counterclockwise against
the cage. The seat, spring cage, spring and disc assembly
are now individual components.
4. The disc assembly may now be cleaned and reassemble or
depending on its condition, may be discarded and replaced
with a new assembly from the repair kit. O-rings should be
cleaned or replaced as necessary. For more information,
refer to repair parts price list PL-RP-BPD.
5. Reassemble the Check valve modules. Check modules are
installed in the valve body with the seats facing the valve
inlet. The modules must be securely in place before the
retainer can be replace.
NOTE: No special tools required to service Series 007DCDA.
Cover O-ring
Retainer
Body
EDP NO
KIT NO.
SIZE
First Check Kit
0887980
RK 007DCDA CK1
2"
0887965
RK 007DCDA CK1
2
1
⁄
2
", 3"
Kit consists of: Seat, Seat O-ring, Disc assembly, Spring, Spring retainer,
Check Cage and Cover O-ring.
Second Check Kit
0887981
RK 007DCDA CK2
2"
0887966
RK 007DCDA CK2
2
1
⁄
2
", 3"
Kit consists of: Seat, Seat O-ring, Disc assembly, spring, Spring retainer,
Check cage and Cover O-ring.
First and Second Check Rubber Parts
0887982
RK 007DCDA RT
2"
0887967
RK 007DCDA RT
2
1
⁄
2
", 3"
Kit consists of: Two seat discs, Two seat O-rings, Two Cover O-rings.
Cover Kit
0887983
RK 007DCDA C
2"
0887980
RK 007DCDA C
2
1
⁄
2
", 3"
Kit consists of: Cover, Cover O-ring.
Seat Kit
0887984
RK 007DCDA S1
2"
0887985
RK 007DCDA S2
2"
0887968
RK 007DCDA S1
2
1
⁄
2
", 3"
0887969
RK 007DCDA S2
2
1
⁄
2
", 3"
Kit consists of: Seat, Seat O-ring.
Use only original equipment manufactured parts to protect
the validated warranty.
Seat
Seat
O-ring
Disc.
Assy.
Spring
Retainer
Cage/
Seat
First Check
Service Parts Kit
Second Check
Service Parts Kit
Cover
Check Assemblies