Watts 008QT User Manual download pdf

Job Name _________________________________________ Contractor _______________________________________________

Job Location _______________________________________ Approval_________________________________________________

Engineer __________________________________________ Contractor P.O. No. ________________________________________

Approval __________________________________________ Representative ____________________________________________

Series 008QT

High Hazard Backflow

Preventer

Anti-Siphon, Spill-Resistant

Designed for indoor point of use applications to prevent back-sipho-

nage of contaminated water back into the potable water supply.

Separation of the water supply from the air inlet is accomplished by

means of a diaphragm seal. This feature protects against any spill-

age during start-up or operation.

SIZES

⁄8",

⁄2",

⁄4" and 1" (10, 15, 20, 25mm)

FEATURES

● Standardly supplied with Tee handles

● Available less Tee handle with stem wrench

flats. For use where space is limited

● Available in left-handed or right-handed outlet

● Patented design

● Spill-resistant design for indoor use

● Affordable design

● Modular cartridge for ease of service

● Vent uses an o-ring for reliable operation

● Bronze body for durability

● Compact space saving design

● ASSE 1056

● IAPMO Classified

INSTALLATION

The SVB is designed to be installed at the point of use. When factory

installed deck/machine mounted on machines or equipment, the

critical level of the SVB shall be not less than 1" (25mm) above the

flood rim. If field applied for general plumbing applications, the criti-

cal level of the SVB shall be a minimum of 6" above the flood rim.

SPECIFICATIONS

A spill-resistant vacuum breaker (SVB) shall be installed, in accor-

dance with the manufacturer's instructions, as noted on the plans.

The valve shall consist of a one piece modular check and float as-

sembly made of engineered thermoplastic and housed in a bronze

body. Springs shall be stainless steel. The valve shall be constructed

with a molded diaphragm separating the air inlet from the potable

water supply to prevent spillage. The valve shall be a Watts SVB Se-

ries 008QT.

ES-008QT

ASSE 1056

IAPMO Classfied

008QT-L (Left-Handed) 008QT (Right-Handed)

Hood Screws

(2 Req'd)

Hood

Bonnet

Vent

Spring

Hood Screw

O-ring

Vent O-ring

Hood

Bonnet

Vent

Spring

Test Cock

Retainer

Check

Assembly

Body

Shutoff

Valve Assy.

(2 Req'd)

Air Bleed Screw

Bleed O-ring

(not shown)

Test Cock

Retainer

Check

Assembly

Body

Vent

O-ring

Size:

⁄8",

⁄2"

(10, 15mm)

Size:

⁄4", 1"

(20, 25mm)

Patent # 5125429

FOR INDOOR USE!

Size

⁄4", 1"

(20, 25mm) shown

Watts product specifications in U.S. customary units and metric are

approximate and are provided for reference only. For precise measure-

ments, please contact Watts Technical Service. Watts reserves the

right to change or modify product design, construction, specifications,

or materials without prior notice and without incurring any obligation

to make such changes and modifications on Watts products previ-

ously or subsequently sold.

1 2

Series 008QT 1
1" min 2

Summary of Contents

Page 1 - Series 008QT

Job Name _________________________________________ Contractor _______________________________________________Job Location ____________________________

Page 2 - 1" min

DIMENSIONS - WEIGHT END CONNECTIONSFemale NPT - Ball Valve shut-offs.Hose and Custom ConnectionsTYPICAL INSTALLATIONPRESSURE - TEMPERATUREWorking Temp