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• Installation  • Service
• Repair Kits  • Maintenance

LIMITED WARRANTY: Watts Regulator Company warrants each prod-
uct against defects in material and workmanship for a period of one year
from the date of original shipment. In the event of such defects within
the warranty period, the Company will, at its option, replace or recondi-
tion the product without charge. This shall constitute the exclusive
remedy for breach of warranty, and the Company shall not be respon-
sible for any incidental or consequential damages, includ

Series
995/995RPDA

Reduced Pressure Zone Backflow Preventer/
Reduced Pressure Detector Assemblies

Sizes: 3" - 6"

For field testing procedure, send for IS-TK-DL,
IS-TK-9A, IS-TK-99E and IS-TK-99D.

For troubleshooting guide, send for S-TSG.

For other repair kits and service parts, send for
PL-RP-BPD.

For technical assistance, contact your local Watts
representative on back page.

N995/Z995, N995RPDA, Z995RPDA are identical in
construction to the 995/995RPDA Series, except
include short radius elbows between the backflow
preventer flange and the gate valve flange.

RP/IS-995/995RPDA

IMPORTANT: Inquire with governing authorities for
local installation requirements.

NOTE:  For Australia and New Zealand, line strainers
should be installed between the upstream shutoff
valve and the inlet of the backflow preventer.

CALIFORNIA PROPOSITION 65 WARNING

WARNING:  This product contains chemicals
known to the State of California to cause cancer
and birth defects or other reproductive harm.
(Installer:  California law requires that this
warning be given to the consumer.)

Summary of Contents for 995 Series

Page 1: ...IS TK 99E and IS TK 99D For troubleshooting guide send for S TSG For other repair kits and service parts send for PL RP BPD For technical assistance contact your local Watts representative on back pag...

Page 2: ...nd cause water blockage during an emergency 5 Normal discharge and nuisance spitting are accommodated by the use of a Watts air gap fitting and a fabricated indirect waste line Floor drains of the sam...

Page 3: ...pen upstream slowly fill the valve and bleed the air through Test cock 2 3 and 4 When valve is filled open the downstream shutoff slowly and fill the water supply sys tem This is necessary to avoid wa...

Page 4: ...o secure cam bar Slowly pull the assembly out ward to open check allowing exposure of the seat and clapper contact area for cleaning The assembly may be locked open by aligning the holes in the cam ba...

Page 5: ...removable 1 3 Clapper Retaining Plate Screws removable 4 4 Clapper Retainer Plate removable 1 5 Clapper Disc removable 1 6 Pivot Arm Pin removable 2 c clips 1 7 2nd Cam Check O ring removable 1 Parts...

Page 6: ...t the elastomer in the sealing disc assembly 4 Servicing the Relief Valve COMPLETE DISASSEMBLY OF THE RELIEF VALVE 1 Remove the sealing disc as above 2 Remove the dust cover 10 from the cover weldment...

Page 7: ...ush Start Test 7 Open VA then slowly open VB no more than 1 4 turn When relief valve drips push the hold button for 2 seconds Record reading must be 2 PSID or more Push Stop Test 8 Close VA and VB Tes...

Page 8: ...Kits include RV Diaphragm RV Disc Lower O ring Upper O ring First Check Rubber Parts Kit 888923 RK 995 995 RPDA RC1 3 4 3 4 995 995 RPDA 888924 RK 995 995 RPDA RC1 6 6 995 995 RPDA Kits include First...

Page 9: ...blem D B Assembly discharges from Pressure relief valve does not close See problem D differential relief valve during a flow condition C Differential pressure relief valve Differential pressure across...

Page 10: ...nd for F TK DL No TK 7 Backflow Preventer Test Kit Tests the individual check modules of the Watts No 7 Residential Dual Check Also used to test No 709 and 007 For additional information send for IS T...

Page 11: ...11 NOTES...

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