Watts 800M4QT Manuel d'utilisateur télécharger pdf

Series 800M4QT

Anti-Siphon Pressure

Vacuum Breakers

Sizes:

⁄2" – 2" (15 – 50mm)

Series 800M4QT is designed to prevent back-siphonage of

contaminated water into a potable water supply. The valve is

ideally suitable for irrigation systems, industrial process water

systems and other continuous pressure piping system applica-

tions where the water enters the equipment at or below its flood

rim. The disc float and check valve are suitable for temperatures

up to 140°F. The resilient sealing float o-ring and seal check

disc are silicone rubber which is resistant to heat, shock and

chemical attack.

Features

•Replaceableplasticseat

•Easymaintenanceofinternalparts

•Acetalbonnetactsas“freezeplug"topreventbodydamage

•O-ringbonnetsealforlesspossibilityoffouling

•Siliconeseatdiscfordurability

•Testcockspositionedforeasytestingandwinterization

•Compactspacesavingdesign

•Standardlyequippedwithteehandlequarterturnballvalve

shutoffs

⁄2"–1"(15–25mm).The1

⁄4"–2"(32–50mm)

feature lever handles

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

•Bronzebodyfordurability

Available Models

Prefix: U – union connections (

⁄4" - 1" only)

Suffix: QC – Quick-Connect Adapters

SH – Stainless Steel Ball Valve Handles

Specifications

Pressure Vacuum Breakers

Ananti-siphonpressurevacuumbreakershallbeinstalled

where indicated on the plans to prevent the back-siphonage

of contaminated water. This assembly is not to be used where

there is a possibility that a back pressure condition may devel-

op. The assembly will incorporate an acetal bonnet with silicone

rubberO-ringsealandsiliconerubberseatdisc.Thevalveshall

havereplaceableseats.Checkassemblyshallbeguidedover

its full stroke by ‘V’ notched guides. The assembly shall meet

therequirementsofANSI/ASSEStandard1020.WattsSeries

800M4QT.

For Health Hazard Applications

ES-800M4QT

JobName

–––––––––––––––––––––––––––––––––––––––––––

 Contractor

––––––––––––––––––––––––––––––––––––––––––––

Job Location

–––––––––––––––––––––––––––––––––––––––––

 Approval

 –––––––––––––––––––––––––––––––––––––––––––––

Engineer

–––––––––––––––––––––––––––––––––––––––––––––

 Contractor’sP.O.No.

––––––––––––––––––––––––––––––––––

Approval

–––––––––––––––––––––––––––––––––––––––––––––

 Representative

––––––––––––––––––––––––––––––––––––––––

800M4QT

⁄2" -

⁄4" (15 – 20mm)

800M4QT

1" - 2" (25 – 50mm)

Now Available

WattsBox Insulated Enclosures.

For more information, refer to literature ES-WB.

Vent Spring

Vent Seal

Vent Float

Check Spring

Retainer

Check Spring

Check

Disc Holder

Check Disc

Hood Screws

Hood

Bonnet

Bonnet O-ring

Seat

Seat O-ring

Body

Test Cock

Inlet Shutoff

Valve

Outlet Shutoff

Valve

Test Cock

800M4QT

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.

1 2 3 4

A B C D E G 2
Capacity 3

Résumé du contenu

Page 1

Series 800M4QTAnti-Siphon Pressure Vacuum BreakersSizes: 1⁄2" – 2" (15 – 50mm)Series 800M4QT is designed to prevent back-siphonage of conta

Page 2 - A B C D E G

MaterialsSprings Stainless SteelBonnet CelconVentDisc SiliconeRubberDiscHolderFloat PolypropyleneCheckValveDisc SiliconeRubberCheckValve

Page 3 - Capacity

1" (25mm) kPa psi 96 14 83 12 69 10 55 8 41 6 28 4 14 2 0 00 10 20 30 40 50 60 gpm0 38 76 114 152 190 228 lpm 5 7.5 10 15 2

Page 4

For additional information, visit our web site at: www.watts.comES-800M4QT1318  ©2013WattsUSA:Tel:(978)688-1811•Fax:(978)794-1848•www.

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Watts 800M4QT Manuel d'utilisateur

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