Series 3000B
RP/IS-A-3000B
3000B
Double Check Detector
Assembly
Sizes: 2" (65mm)
• Installation
• Service
• Repair Kits
• Maintenance
Installation Note: The flange gasket bolts for
the gate valves should be retightened during
installation as the bolts may have loosened
due to storage and shipping.
For other repair kits and service parts, send for
Ames Repair Parts Price List, PL-A-RP-BPD.
For technical assistance, contact your local
Ames representative.
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: 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.
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.
SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT
Its important that this assembly 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 preventers,
should be flow tested and inspected
internally in accordance with NFPA 13 and
NFPA 25.
www.amesfirewater.com
A Division of Watts Water Technologies, Inc.
Basic Installation Instructions
Indoors Installation
Ames Model 3000B may be installed in either a vertical or
horizontal position. Pipe lines should be thoroughly flushed to
remove foreign material before installing the unit. A strainer
should be installed as shown, ahead of backflow preventer to
prevent disc from unnecessary fouling. Install valve in the line
with arrow on valve body pointing in the direction of flow.
Main
For indoor installations, it is important that the valve be easily
accessible to facilitate testing and servicing. Do not install in a
concealed location.
CAUTION: Do not install with strainer when backflow
preventer is used on seldom used water lines which are called
upon during emergencies, such as fire sprinkler lines, etc.
It is important that Model 3000B be tested periodically in
compliance with local codes, but at least once a year or more
often depending upon system conditions.
Note Fire Protection System Installations: The National Fire
Protection Agency (NFPA) Guidelines require a confirming flow test
to be conducted whenever a “main line” valve such as the shutoff
valves or a backflow assembly have been operated. Certified testers
of backflow assemblies must conduct this test. The trim valves of
the detector meter bypass line, on assemblies so equipped, should
be shut off during the confirming flow test. When the test is
completed the trim valves must be retuned to a fully open position.
Meter
Strainer
Vertical Flow Up
12" minimum
refer to local codes
Outside Installation — Above Ground
In areas where freezing conditions do not occur, Model 3000B
can be installed outside of a building. The most satisfactory
installation is above ground and should be installed in this
manner whenever possible.
In an area where freezing conditions can occur, Model 3000B
should be installed above ground in an insulated enclosure.
Annual inspection of all water system safety and control valves is
required and necessary. Redular inspection, testing and cleaning
assures maximum life and proper product function.
Min. 12"
2
Maintenance Instructions
Servicing the First and Second Check Valves
1. Remove cover bolts and cover.
2. Remove the retainer from the body bore. The check valve modules can now be
removed from the valve by hand or with a screwdriver.
3. The check seats are attached to the cage with a bayonet type locking arrangement. Holding the cage in one hand, push the seat inward and rotate counterclockwise against the cage. The seat, spring cage, spring and disc assembly are
now individual components.
4. The disc assembly may now be cleaned and reassemble or depending on its condition, may be discarded and replaced with a new assembly from the repair kit. Orings should be cleaned or replaced as necessary.
5. Reassemble the check valve modules. Check modules are installed in the valve
body with the seats facing the valve inlet. The modules must be securely in place
before the retainer can be replaced.
NOTE: No special tools required to service Model 3000B.
Check Assemblies
Cover
Cover
O-ring
Second Check
Service Parts Kit
Seat
Seat
O-ring
Assy.
Spring
Cage/
Seat
Disc
Replacement Parts
When ordering, specify Ordering Code, Kit Number and Valve Size.
First Check Kit
Ordering Code Kit No. Size
7016200 ARK 3000B CK1 2 50
Kit includes: Seat, Seat O-ring, Disc assembly, Spring, Spring
retainer, Check Cage and Cover O-ring.
Second Check Kit
7016201 ARK 3000B CK2 2 50
Kit includes: Seat, Seat O-ring, Disc assembly, Spring, Spring
retainer, Check cage and Cover O-ring.
in. mm
First Check
Retainer
Service Parts Kit
Body
Cover Kit
Ordering Code Kit No. Size
in. mm
7016203 ARK 3000B C 2 50
Kit includes: Cover, Cover O-ring.
Seat Kit
7016204 ARK 3000B S1 2 50
7016205 ARK 3000B S2 2 50
Kit includes: Seat, Seat O-ring.
First and Second Check Rubber Parts
7016202 ARK 3000B RT 2 50
Kit includes: Two seat discs, Two seat O-rings, Two Cover O-rings.
“Use only original equipment manufactured parts to protect the
validated warranty.”
3
Testing — Double Check Valve Assembly
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 differ-
ential 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.
Ball Type Test Valves
(A)
(B)
Needle
Valve
High Hose
(Yellow)
Low Hose
(White or Red)
(C)
Vent Hose
(Blue)
Step 4: Close shutoff #1, 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.
Note: 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
hose at test cock #4 to remove air. Retighten 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.
Note: Product information is subject to change without notice and
supersedes all previous publications.
1
⁄2 turn, loosen
Test Cock
No. 1
Test Cock
No. 2
Test Cock
No. 3
Test Cock
No. 4
www.amesfirewater.com
A Division of Watts Water Technologies, Inc.
RP/IS-A-3000B 0904 EDP# 1915337 ©Ames Fire & Waterworks, 2009
USA: Backflow- 1427 N. Market Blvd • Suite #9 • Sacramento, CA 95834 • T: 916-928-0123 • F: 916-928-9333
Control Valves- 18550 Hansen Road • Houston, TX 77075 • T: 713-943-0688 • F: 713-944-9445
Canada: 5435 North Service Rd. • Burlington, ONT. L7L 5H7• T: 905-332-4090 • F: 905-332-7068
Loading...