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Series
995/995RPDA
Reduced Pressure Zone Backflow Preventer/
Reduced Pressure Detector Assemblies
Sizes: 3" - 6"
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.)
• Installation • Service
• Repair Kits • Maintenance
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.
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.
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
RP/IS-995/995RPDA
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Related Manuals for Watts 995 Series
Summary of Contents for Watts 995 Series
- Page 1 WARNING: This product contains chemicals known to the State of California to cause cancer LIMITED WARRANTY: Watts Regulator Company warrants each prod- and birth defects or other reproductive harm. uct against defects in material and workmanship for a period of one year (Installer: California law requires that this from the date of original shipment.
- Page 2 5. Normal discharge and nuisance spitting are accommodated by essary to avoid water hammer or shock damage. the use of a Watts air gap fitting and a fabricated indirect waste line. Floor drains of the same size MUST be provided in case of excessive discharge.
- Page 3 B. The 995 should always be installed in an accessible location to fa- F. The installation of a Watts air gap with the drain line terminating above a cilitate testing and servicing. Check the state and local codes to in-...
- Page 4 Servicing First and Second Checks Watts Series 995/995RPDA Screwdriver or Prybar Figure 2 Figure 1 Screwdriver or Prybar Body Cover Bolts Check Check 3", 4" & 6" RP 1st Check Assmbly Check Disassembly Please use caution when disassembling check. The check is a spring-loaded mechanical device.
-
Page 5: Part Description
Servicing First and Second Checks Parts Table (figure 8) Item Part Description Qty. 1st Cam-Check O-ring (removable) Clapper Assembly (removable) Clapper Retaining Plate Screws (removable) Clapper Retainer Plate (removable) Clapper Disc (removable) Pivot Arm Pin (removable) 2 c-clips 2nd Cam-Check O-ring (removable) Figure 8 Note: Align holes and insert pin or small screwdriver to... - Page 6 Servicing the Relief Valve Figure 9 Parts Table (figure 9) Item Part Description Qty. Cover Diaphragm/Gasket Shaft Sealing Disc Guide, Lower O-ring Support Disc Disc, Diaphragm Stop Guide, Upper Cover, Dust O-ring, Upper Spring RELIEF VALVE SERVICE INSTRUCTIONS COMPLETE DISASSEMBLY OF THE RELIEF VALVE 1.
- Page 7 The following Test Procedure is one of several that is recognized throughout the United States for testing Backflow Preventers. The following procedure is not a specific recommendation. The Watts series of test kits are capable of performing any of the recognized Backflow test procedures.
- Page 8 995/995RPDA Repair Kits First Check Kit EDP No. Kit No. Size For use w/Model #'s 888915 RK 995/995 RPDA CK1 3" - 4" 3" - 4" 995/995 RPDA 888916 RK 995/995 RPDA CK1 6" 6" 995/995 RPDA Kits include: Complete #1 Check Assembly and Check O-ring. Second Check Kit 888917 RK 995/995 RPDA CK2...
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Page 9: Troubleshooting Guide
Trouble Shooting Guide Problem Cause Solution A. Assembly discharges from Fouled first check Disassemble and clean No. 1 differential relief valve during check valve no flow condition. Fluctuating inlet pressure Control supply line water pressure. Install a spring-loaded soft seated check valve upstream of the back- flow prevention assembly. - Page 10 No. TK-9A Backflow Preventer Test Kit Test Kit for Backflow Prevention Products Backflow Preventer Test Kit The Watts TK-99E has been designed for Especially made for testing all reduced TK-DL has Digital Print-Out and Computer simplified operator operation and rugged pressure zone backflow preventers.
- Page 11 NOTES...