beautypg.com

Testing — double check valve assemblies, Test check valve no. 1, Test check valve no. 2 – Ames Fire & Waterworks C300Na Stainless Steel Double Check Detector Assemblies with Bi-Link Check Valves User Manual

Page 4: Test for leaky no. 2 shutoff

background image

RP/IS-A-C200a/C300a 1330

EDP# 7018380

© 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.

Test Check Valve No. 1

Step 1: Ensure shutoff #1 is open, shutoff #2 is closed.
Step 2: Connect high side hose to test cock #3, low side to test

cock #2 and open both test cock #2 and test cock #3.

Step 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.

Step 4: Connect vent hose loosely to test cock# 1. Open valve A to

vent air from vent hose, Tighten vent hose at test cock #1,

open test cock #1.

Step 5: Close shutoff #1. Slowly loosen hose at test cock #2 until

differential gauge rises to 2psi and retighten hose.

If the differential reading does not decrease, record check

valves as “tight”.

Test Check Valve No. 2

Step 1: Move the high side hose to test cock #4, low side to test

cock #3 and open both test cock #3 and test cock #4.

Remove vent hose from test cock #1, open shutoff #1.

Step 2: Open valve C, then open valve A to bleed air from the high

side. Close valve A, then open valve B to bleed low side.

Close valve B.

Step 3: Connect vent hose loosely to test cock #1. Open valve A to

vent air from the vent hose. Tighten vent hose at test cock

#1, open test cock #1.

Step 4: Close shutoff #1, and then slowly loosen hose at test cock

#3 until differential gauge rises to 2psi and retighten hose. If

the differential reading does not decrease, record check as

tight. Remove all hoses and restore valve to original working

condition.

NOTICE

The assembly will fail both the first and second check valve tests
above, if shutoff #2 leaks excessively. To test for a leaky #2 shutoff,
use the following procedure.

Test for Leaky No. 2 shutoff

Step 1: Connect the high side to test cock #1, low side to test cock

#4. Open test cock #1 and test cock #4. Close shutoffs #1

and #2.

Step 2: Close valve C. Open valve A, then open valve B

1

/

2

turn, loosen hose at test cock #4 to remove air. Re-

tighten hose.

Step 3: If the differential gauge rises above 0, there is excessive

leakage at shutoff #2 and it must be replaced to test the

assembly.

Testing — Double Check Valve Assemblies

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

Ball Type Test Valves

A

C

B

Needle

Valve

High Hose

(Yellow)

Low Hose

(White or Red)

Vent Hose

(Blue)

Test Cock Test Cock Test Cock

Test Cock

No. 1

No. 2

No.3

No.4

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

This manual is related to the following products: