Freeze protection guidelines, Service, replacement parts and maintenance, Disassembly – Ames Fire & Waterworks A200 Bronze Anti-Siphon Pressure Vacuum Breakers User Manual

Page 2: Reassembly, Recommended service, Pressure — temperature

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RP/IS-A-A200 1329

EDP# 1911318

© 2013 Ames Fire & Waterworks

www.amesfirewater.com

A Watts Water Technologies Company

USA: Backflow- Tel: (916) 928-0123 • Fax: (916) 928-9333

Control Valves- Tel: (713) 943-0688 • Fax: (713) 944-9445

Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068

Limited Warranty: Ames Fire & Waterworks (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.

WARNING: This product contains chemicals known to the

State of California to cause cancer and birth defects or

other reproductive harm.

For more information: www.watts.com/prop65

Freeze Protection Guidelines

Purging of a PVB Assembly with Pressurized Air:
1. Close main shutoff valve.
2. Open upstream drain, test cocks and isolation ball valves to de-

pressurize line.

3. Purge with pressurized line
4. Leave test cocks and isolation ball valve handles in 45º angle to

drain ball valves and prevent casting damage

Internal parts can be removed, repaired or inspected without

removing the valve from the piping.

Disassembly

1. Shut off the supply pressure and drain the valve.
2. Remove the two hood screws and the hood.
3. Place a wrench on the parallel flats of bonnet and stem assembly.

Turn counterclockwise and remove.

4. Remove the vent assembly.
5. Press down on the spring retainer and disengage it from the retain-

ing lugs. Then turn 90º and remove.

6. Remove the spring retainer and spring. Note that the large diam-

eter of the spring is down on the guide assembly.

7. Remove the check disc holder and guide assembly.
8. Disassemble the check disc holder assembly.

Reassembly

Reassemble in the reverse order utilizing the new parts from the

repair kit.

NOTICE

Ames assemblies require minimum maintenance. All assemblies must
be retested once maintenance has been performed prior to use.

Service, Replacement Parts and Maintenance

Vent Spring

Test Cock

Outlet Shutoff Valve

Check Disc

Check Disc Holder

Check Spring

Check Spring Retainer

Vent Float

Vent Seat

Hood Screws (2)

Bonnet

Inlet Shutoff valve

Test Cock

Body

Seat O-ring

Seat

Bonnet O-ring

Hood

For repair kits and parts, refer to our Backflow

Prevention Products Repair Kits & Service Parts price list

PL-A-RP-BPD found on

www.amesfirewater.com.

Recommended Service

1. Test periodically as required by local jurisdictional authorities.
2. Open test cocks to drain in cold climates if only operated

seasonally.

3. Replace rubber goods every 5 years.

Pressure — Temperature

Working Temp: 33ºF – 140°F (0.5°C - 60.0°C)
Max. Pressure: 150psi (10.3 bar)
Min. Pressure: 15psi (103 kPa)

WARNING

!

Depressurize valve before servicing

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