Watts 007DCDA User Manual download pdf

For Non-Health Hazard Fire Applications

ES-007DCDA

/2" (65mm)

007DCDA

Now Available

WattsBox Insulated Enclosures.

For more information, refer to literature ES-WB.

Test Cock

Retainer

2nd Check

Module

1st Check

Module

Test Cock

Series 007DCDA

Double Check Detector Assemblies

Sizes: 2

⁄2" – 3" (65 – 80mm)

Series 007DCDA Double Check Detector Assemblies are designed

exclusively for use in accordance with water utility authority on non-

health hazard containment requirements. It is mandatory to prevent

the reverse flow of fire protection system substances, i.e., glycerin

wetting agents, stagnant water and water of non-potable quality

from being pumped or siphoned into the potable water line.

Benefits: Detects leaks…with emphasis on the cost of unaccount-

able water; incorporates a meter which allows the water utility to:

•detectundergroundleaksthathistoricallycreategreatannual

cost due to waste.

•provideadetectionpointforunauthorizeduse.Itcanhelplocate

illegal taps.

Modular check design concept facilitates maintenance and assem-

bly access. All sizes are standardly equipped with resilient seated

OSY shutoff valves and

⁄8" x

⁄4" (16 x 19mm) meter.

Features

•Fusedepoxycoatedcastironunibody2

⁄2" – 3" (65 – 80mm)

•Replaceableseats

•Maximumflowatlowpressuredrop

•Compactforeaseofinstallation

•Designsimplicityforeasymaintenance

•Nospecialtoolsrequiredforservicing

•Bronzebodyballvalvetestcocks

•Modularspringloadedchecks

•Furnishedwithbronze

⁄8" x

⁄4" (16 x 19mm) meter

Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,

please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-

out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Specifications

A Double Check Detector Assembly shall be installed on fire protec-

tion systems when connected to a potable water supply. Degree of

hazard present is determined by the local authority having jurisdic-

tion. The backflow preventer shall be a complete assembly includ-

ing UL listed resilient seated OSY shutoff valves and four test cocks.

The test cocks located on the backflow preventer shall be mounted

at the top of the valve to reduce clearance problems and to assist

in the evacuation of air from the assembly. The assembly shall

consist of two independently operating modular poppet-type check

valves. The check valves shall utilize captured springs and shall

have replaceable seats. The checks shall be double-guided, both

along the outside edge of the check module and through the center

stem assembly. The seats shall be replaceable without the use of

special tools. Seat retention shall be done by the use of an inter-

locking bayonet-style cage and the use of threaded seats or seat

screws is prohibited. Access to the internal check assemblies shall

be via a single top entry cover. The cover shall be securely held in

placebystainlesssteelbolts.WhereapplicabletheunitshallbeFM

approvedwithFMapprovedOSYresilientseatedshutoffvalves.

The assembly shall include an auxiliary bypass line consisting of an

approved backflow preventer and water meter.

The assembly shall be listed or approved under the requirements of

ASSEStd.1048,AWWAStd.C510-92andCSAB64.5.Approved

bytheFoundationforCross-ConnectionControlandHydraulic

ResearchattheUniversityofSouthernCalifornia.Theassembly

shallbeaWattsRegulatorCompanySeries007DCDA.

JobName

–––––––––––––––––––––––––––––––––––––––––––

Contractor

––––––––––––––––––––––––––––––––––––––––––––

Job Location

–––––––––––––––––––––––––––––––––––––––––

Approval

–––––––––––––––––––––––––––––––––––––––––––––

Engineer

–––––––––––––––––––––––––––––––––––––––––––––

 Contractor’sP.O.No.

––––––––––––––––––––––––––––––––––

Approval

–––––––––––––––––––––––––––––––––––––––––––––

 Representative

––––––––––––––––––––––––––––––––––––––––

NOTICE

Inquire with governing authorities for local installation requirements

1 2

Summary of Contents

Page 1 - Series 007DCDA

For Non-Health Hazard Fire ApplicationsES-007DCDA21/2" (65mm)007DCDANow AvailableWattsBox Insulated Enclosures.For more information, refer to lit

Page 2 - IAPMO PS 31

AEPPressure DropFlow 21⁄2" (65mm)***Pressure DropFlow 3" (80mm)***AvailableSuffix:CFM–cubicfeetperminutemeterGPM – gallons per minute

Watts 007DCDA User Manual

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