Test Check Valve No. 1
1. Ensure shutoff No. 1 is open and shutoff No. 2 is closed.
2. Connect the high side hose to test cock No. 3, and the low side to test
cock No. 2, and open both test cock No. 2 and test cock No. 3.
3. Open valve C, then open A to bleed air from the high side. Close valve
A, then open B to bleed low side. Close valve B.
4. Connect the vent hose loosely to test cock No. 1. Open valve A to vent
air from the vent hose. Tighten the vent hose at test cock No. 1, and
open test cock No. 1.
5. Close shutoff No. 1. Slowly loosen the hose at test cock No. 2 until the
differential gauge rises to 2psi then retighten the hose. If the differential
reading does not decrease, record the check valves as "tight."
Test Check Valve No. 2
1. Move the high side hose to test cock No. 4, the low side to test cock
No. 3, and open both test cock No. 3 and test cock No. 4. Remove
the vent hose from test cock No. 1, and open shutoff No. 1.
2. Open valve C, then open valve A to bleed air from the high side. Close
valve A, then open valve B to bleed the low side. Close valve B.
3. Connect the vent hose loosely to test cock No. 1. Open valve A to vent
air from the vent hose. Tighten the vent hose at test cock No. 1, and
open test cock No. 1.
4. Close shutoff No. 1, then slowly loosen the hose at test cock No. 3
until the differential gauge rises to 2psi and retighten the hose. If the dif-
ferential reading does not decrease, record the check as tight. Remove
all the hoses and restore the valve to original working condition.
NOTICE
The assembly will fail both the first and second check valve tests
above, if shutoff No. 2 leaks excessively. To test for a leaky No. 2
shutoff, use the following procedure.
Test for Leaky No. 2 Shutoff
1. Connect the high side to test cock No. 1, and the low side to test cock
No. 4. Open test cock No. 1 and test cock No. 4. Close shutoffs No. 1
and No. 2.
2. Close valve C. Open valve A, next open valve B 1⁄2 turn, then loosen
the hose at test cock No. 4 to remove air. Retighten the hose.
3. If the differential gauge rises above 0 (zero), there is excessive leakage
at shutoff No. 2. The shutoff must be replaced to test the assembly.
Testing Double Check Valve Assembly
Ball Type Test Valves
(A)
(C)
(B)
Needle
Valve
High Hose
(Yellow)
Low Hose
(White or Red)
Vent Hose
(Blue)
Test Cock
No. 1
Test Cock
No. 2
Test Cock
No. 3
Test Cock
No. 4
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.
RP/IS-A-2000SS/3000SS 2218
EDP#7016812
© 2022 Watts
USA: Backflow
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