User Guide

ManualsBrandsWatts ManualsBackflow PreventersTK-9A Backflow Prevention Test Kit

IS-TK-9A

Watts TK-9A

Backflow Preventer Test Kit

The Watts No. TK-9 Model “A” Backflow Preventer Test Kit is a

compact portable testing device made for testing all Reduced

Pressure Zone Backflow Prevention Assemblies and Double

Check Valve Assemblies. The TK-9A is easily connected to any

RPZ device enabling accurate testing of zone differential

pressure, relief valve opening differential, fouled check valves

or similar problems that visual inspections cannot locate. The

unit is supplied with a rugged carrying case for easy handling

and accessibility.

Specifications

• Maximum working pressure – 175 psi (12.1 bar).

• Maximum working temperature – 210°F (99°C).

• Gauge - 4

⁄2" diameter face dual scale 0 – 15 psid and

0-1 kg/cm2, ±2% accuracy full scale.

• Test Valves – (2) ball valves and (1) needle valve.

• Hoses – (3) 3’ with female threaded swivel couplings.

• Adaptors – (3)

⁄4" threaded coupling adaptors

(3)

⁄2" x

⁄4" bushings

(3)

⁄4" x

⁄4" bushings

• 1 – 16" securing strap.

• 1 – Moisture resistant instruction guide.

• Case – light weight, shock resistant molded plastic with

foam inserts.

For digital printout model test kit, request F-TK-DL.

Summary of content (4 pages)

PAGE 1
IS-TK-9A Watts TK-9A Backflow Preventer Test Kit The Watts No. TK-9 Model “A” Backflow Preventer Test Kit is a compact portable testing device made for testing all Reduced Pressure Zone Backflow Prevention Assemblies and Double Check Valve Assemblies. The TK-9A is easily connected to any RPZ device enabling accurate testing of zone differential pressure, relief valve opening differential, fouled check valves or similar problems that visual inspections cannot locate.
PAGE 2
No. TK-9 Model “A” Test Kit Reduced Pressure Zone Backflow Preventers must be inspected and tested periodically, in accordance with local codes, to ensure proper operation of check valves within the unit. A differential pressure gauge is recommended for Test No. 1 rather than a manometer for the following reasons: It utilizes minimum time to perform the test. It eliminates the necessity of closing the inlet ball valve which could release pipe scale and foreign matter into the backflow preventer.
PAGE 3
Series 909 Reduced Pressure Zone Backflow Preventer 11⁄4" to 2" Test Cock No. 2 Test Cock No. 3 Test Cock No. 4 Test Cock No. 1 Check Valve No. 1 Shutoff No. 1 Shutoff No. 2 Check Valve No. 2 909QT shown Pressure Differential Relief Valve Series 909 Reduced Pressure Zone Backflow Preventer 21⁄2" to 10" Gate Valve Shutoff No. 1 Test cock No. 3 Test cock No. 4 Gate Valve Shutoff No. 2 Air Vent Test cock No. 1 Test cock No.
PAGE 4
Ball Type Test Valves Test Procedure (A) Double Check Valve Assembly Test Check Valve No. 1 (C) (B) Needle Valve Step 1: Insure 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.