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Series 909/909RPDA

Reduced Pressure Zone Assemblies
Reduced Pressure Detector Assemblies

Sizes: 2

1

2

" – 10" (65 – 250mm)

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

For technical assistance, contact your local Watts representa-
tive on back page.

RP/IS-909/909RPDA

Watts 909 OSY shown

Designed for inline servicing

IMPORTANT:

Inquire with governing authorities for local installa-

tion requirements.

NOTE:

For 

Australia

and 

New Zealand

, line strainers should be

installed between the upstream shutoff valve and the inlet of the
backflow preventer.
Its important that this device be tested periodically in compliance
with local codes, but at least once per year or more as service
conditions warrant. If installed on a fire sprinkler system, all
mechanical checks, such as alarm checks and backflow preven-
ters, should be flow tested and inspected internally in accor-
dance with NFPA 13 and NFPA 25.

Limited Warranty:

Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage 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 recondition the product without charge.

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES,
EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from
labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control.
This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above
limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to
determine your rights.

SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.

Summary of Contents for 909Series

Page 1: ...TO THE PRODUCT THE COMPANY MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRA...

Page 2: ...t the safe drinking water as per applicable standard Figure 1 Series 909 RELIEF VALVE DISCHARGE RATES ZONE PRESSURE PSIG FLOW RATE GPM Installation Note The flange gasket bolts for the gate valves sho...

Page 3: ...Test cock 2 3 and 4 When valve is filled open the downstream shutoff slowly and fill the water supply system This is necessary to avoid water hammer or shock damage G The installation of a Watts air...

Page 4: ...drips push the hold button for 2 seconds Record reading must be 2 psid or more Push Stop Test 8 Close VA and VB Test No 2 Test No 2 Check Valve 9 Install bypass hose between VA and TC 4 Open VA then...

Page 5: ...3 RK 909 S 8 200 0887734 RK 909 S 10 250 Kits include Seat Seat O ring Cover O ring Retainer wire and lubricant Total Rubber Parts Kits 0887750 RK 909 RT 21 2 3 65 80 0887751 RK 909 RT 4 100 0887752 R...

Page 6: ...Bottom plug o ring and lubricant Relief Valve Total 0887235 RK 909 VT 21 2 3 65 80 0887236 RK 909 VT 4 6 100 150 0887237 RK 909 VT 8 10 200 250 0887238 RK 909M1 VT 4 10 100 250 Kits include Adapter o...

Page 7: ...lve seat or inlet cover check seats Electrically ground the piping system and or electrically isolate the device with plastic pipe immediately upstream and downstream of the device B 6 Valve improperl...

Page 8: ...web site at www watts com RP IS 909 909RPDA 0829 EDP 1915172 2009 Watts USA 815 Chestnut St No Andover MA 01845 6098 www watts com Canada 5435 North Service Rd Burlington ONT L7L 5H7 www wattscanada c...

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