Watts 007 Series User Manual

3
Series 007 and LF007
1
⁄2" – 2"
NOTICE
Before servicing, ensure supply water is turned off or shutoff
valvesare in the closed position. Open test cocks No. 2, No. 3,
and No. 4 to relieve pressure inside the valve prior to
removing valve cover.
1. Remove the cover, then remove the retainer from the body
valve. The check valve modules can now be removed from the
valve by hand or with a screwdriver.
Cover
Cover
O-ring
Retainer
Body
First Check
Second Check
Seat
Seat
O-ring
Disc
Assembly
Spring
Check
Cage
Cover
Cover
O-ring
Retainer
Body
Second Check
First Check
O-rings
Check
Cage
Spring
DiscSeat
NOTICE
For Series 007 and LF007, sizes
1
⁄2" - 2", the seats and springs of
the first and second check modules are not interchangeable. The
heavier spring and smaller diameter seat belong with the first check
module. Series 007M1 sizes
3
⁄4" - 1" and Series 007M2
3
⁄4" have
interchangeable seats and springs.
2. 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 clockwise against the cage. For
3
⁄4" Series
007M2/LF007M2 and LF007 pull apart seat and cage. The seat,
cage, spring and disc assembly are now individual components.
3. The disc assembly may now be cleaned and reassembled or,
depending on its condition, it may be discarded and replace with
a new assembly from the repair kit. O-rings should be cleaned or
replaced as necessary.
4. Reassemble the check valve module in the reverse order. 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 replaced. On the
3
⁄4" - 1" size, this retainer may
have to be tilted slightly into place. Replace cover, and close
all test cocks before returning the valve to service.
Servicing the First and Second Check Valves

Watts 007 Series Specifications

General

Brand	Watts
Model	007 Series
Category	Control Unit
Language	English