Install Instructions
1.  Remove the retainer from the body bore. The check valve 
mod ules can now be removed from the valve by hand or 
with  a  screw driv er.  NOTE: The seats and springs of the first 
and second check modules are not in ter change able. The 
heavier spring and smaller di am e ter seat belong with the first 
check module.
2.  The check seats are attached to the cage with a bay o net 
type lock ing ar range ment. Hold ing the cage in one hand, 
push the seat in ward and ro tate clockwise against the cage. 
The seat, spring cage, spring and disc assembly are now 
in di vid u al  com po nents.
  NOTE: 
3
⁄4" M2 modules snap apart.
3.  The disc assembly may now be cleaned and re-as sem-
bled or, de pend ing on its condition, may be dis card ed and 
replaced with a new assembly from the re pair kit. O-rings 
should be cleaned or replaced as nec es sary and light ly 
greased with the FDA approved grease. Refer to parts price 
list, PL-RP-BPD for more information.
4.  Re-assemble the check valve modules. Check mod ules are 
in stalled in the valve body with the seat fac ing the valve inlet. 
The modules must be se cure ly in place be fore the re tain er 
can be re placed. On the 
3
⁄4" size re tain er may have to be tilt-
ed slightly into place. Re place relief valve as sem bly.
Watts re serves the right to change or modify prod uct de sign, con struc-
tion,  spec i fi ca tions,  or  ma te ri als  with out  prior  notice  and  without  in cur-
ring any obligation to make such chang es and mod i fi ca tions on Watts 
prod ucts previously or subsequently sold.
For additional information, contact your local technical sales 
representative, see back page.
Cover O-ring
Retainer
Second Check Assembly
First Check Assembly
Relief 
Valve 
Module
 CHECK ASSEMBLY 
3
⁄4" M3
O-ring 
Seal
Spring
Disc
Seat
Check 
Cage
 CHECK ASSEMBLY 
1
⁄4" – 
3
⁄4"
Injection Molded 
Acetal Resin
O-ring Seal
Stainless Steel 
Spring
Silicone Seal
1st Check 
Module
 CHECK ASSEMBLY 1" - 2" (25 – 50mm)
Seat
Seat O-ring
Disc Assembly
Spring
Check Cage
Check Valve Kits
1
⁄4" – 2" (8 – 50mm)
When ordering, specify Ordering Code, Kit number and Valve Size.
  ORDERING CODE  KIT NO.    SIZE
        in.  mm
Check Rubber Parts
  0887293  RK 009 RC3 
1
⁄4, 
3
⁄8, 
1
⁄2  8, 10, 15
  0887003  RK 009M2 RC3 
3
⁄4 20 
  0888522  RK 009M3 RC3 
3
⁄4 20
  0887507  RK SS009 RC1 
1
⁄2 15 
  0887517  RK SS009M2 RC1 
3
⁄4 20 
  0888595  RK SS009M3 RC1 
1
⁄4 – 
3
⁄4 8-20 
  0887017  RK 009 RC1 
3
⁄4 – 1  20-25 
  0887527  RK SS009 RC1  1  25 
  0887791  RK 009M2 RC1  1  25 
  0887508  RK SS009 RC2 
1
⁄2 15 
  0887518  RK SS009M2 RC2 
3
⁄4 20 
  0888596  RK SS009M3 RC2 
1
⁄4 – 
3
⁄4 8-20
  0887180  RK 009 RC2 
3
⁄4 – 1  20-25
  0887528  RK SS009 RC2  1  25
  0887792  RK 009M2 RC2  1  25
Kit consists of: Disc, Cover O-ring and Seat O-ring.
Retainers
 1047053  99AB47   
1
⁄4, 
3
⁄8, 
1
⁄2  8, 10, 15
  1047394  99BA47 M2-M3 
3
⁄4  20
 1047001  99FA47    1
1
⁄4 – 2  32-50
  1047001  99FA47  M1, 2" M2  1
1
⁄4 – 2  32-50
 1047401  99EA47  M2  1
1
⁄4 – 1
1
⁄2 32-40
LEAD FREE
*
  ORDERING CODE  KIT NO.    SIZE
        in.  mm
First Check Kits
  0887291  RK 009 CK1 
1
⁄4, 
3
⁄8, 
1
⁄2  8, 10, 15
  0887505  RK SS009 CK1 
1
⁄2 15 
  0887000  RK 009M2 CK1 
3
⁄4 20
  0887515  RK SS009M3 CK1 
1
⁄4 – 
3
⁄4 8-20 
  0888520  RK 009M3 CK1 
3
⁄4 20 
  0887005  RK 009 CK1 
3
⁄4 – 1  20-25
  0887009  RK 009 CK1SS 
3
⁄4 – 1  20-25 
  0887525  RK SS009 CK1  1  25 
  0887789  RK 009M2 CK1  1  25
Kit consists of: Check assembly and Cover O-ring.
Second Check Kits
  0887292  RK 009 CK2 
1
⁄4, 
3
⁄8, 
1
⁄2  8, 10, 15
  0887506  RK SS009 CK2 
1
⁄2 15
  0887001  RK 009M2 CK2 
3
⁄4 20
  0887516  RK SS009M3 CK2 
1
⁄4 – 
3
⁄4  8, 10, 15
  0888521  RK 009M3 CK2 
3
⁄4 15
  0887007  RK 009 CK2 
3
⁄4 – 1  15-25
  0887011  RK 009 CK2SS 
3
⁄4 – 1  15-25
  0887526  RK SS009 CK2  1  25
  0887790  RK 009M2 CK2  1  25
Kit consists of: Check assembly and Cover O-ring.
LEAD FREE
*
LEAD FREE
*
1
⁄4" – 1" (8 – 25mm)
6
* The wetted surface of this product contacted by consumable 
water contains less than 0.25% of lead by weight.
Servicing First & Second Check Valves
Series 009 and LF009
1
⁄4" – 1" (8 – 25mm)










