Series 709DCDA - Watts Water Technologies

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ES-709DCDA

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Series 709DCDA

Double Check Detector Assemblies Sizes: 3" – 10" (80 – 250mm) Series 709DCDA Double Check Detector Assemblies are designed exclusively for use in accordance with water authority 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 unaccountable water; incorporates a meter which allows the water utility to:

709DCDAOSY

• detect leaks underground that historically create great annual cost due to waste. • provide a detection point for unauthorized use. It can help locate illegal taps.

Check Assembly Module

Test Cock Cover

Modular check design concept facilitates maintenance and assembly access. All sizes are standardly equipped with resilient seated OSY shutoff valves, 5⁄8" x 3⁄4" (16 x 19mm) meter and ball type test cocks.

Features • Body construction fused epoxy coated cast iron • Replaceable bronze seats

Seat

Disc

• Maximum flow at low pressure drop • Compact for economy combined with performance • Design simplicity for easy maintenance • Furnished with 5⁄8" x 3⁄4" (16 x 19mm) bronze meter • No special tools required for servicing

Check Assembly Module Features a modular design concept which facilitates complete maintenance and assembly by retaining the spring load. First and second check valve spring modules are not interchangeable.

Specifications A Double Check Detector Assembly shall be installed on fire protection systems when connected to a potable water supply. Degree of hazard present is determined by the local authority having jurisdiction. The unit shall be a complete assembly including UL listed resilient seated OSY shutoff valves and test cocks. The unit shall be UL/FM approved with UL/FM approved OSY shutoff valves. The auxiliary line shall consist of an approved backflow preventer and water meter. The assembly shall meet the basic requirements of ASSE 1048; AWWA Std. C510 for Double Check Valves. Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California. Assembly shall be a Watts Regulator Company Series 709DCDA.

Now Available

WattsBox Insulated Enclosures. For more information, send for literature ES-WB. IMPORTANT: INQUIRE WITH GOVERNING AUTHORITIES FOR LOCAL INSTALLATION REQUIREMENTS

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

Pressure – Temperature

Materials Body:

Epoxy coated cast iron

Seat:

Bronze

Temperature Range: 33˚F – 110˚F ( 0.5˚ – 43˚C) continuous, 140˚F (60˚C) intermittent

Disc Holder:

Bronze

Maximum Working Pressure: 175psi (12.1bar)

Trim:

Stainless steel

Standards

Check Valve Discs: Rubber Test Cocks:

AWWA Standard C510

Bronze

Approvals

Models Suffix: OSY - UL/FM outside stem and yoke resilient seated gate valves

B.64

1048

LF - 4" – 10" (100 – 250mm) without shutoff valves

Approved by the foundation for Cross-Connection Controland Hydraulic Research at the University of Southern California. Sizes 4" – 10" (100 – 250mm) approved for horizontal and vertical “flow up”. Size 3" (76mm) approved for horizontal only.

Dimensions – Weights

Factory Mutual approved 4" – 10" (100-250mm) vertical “flow up”.

CFM - cubic feet per minute meter GPM - gallons per minute meter

U* C (open)

D E L

R

T

A

SIZE (DN)

DIMENSIONS A

D

C

E

WEIGHT

L

R

T

U*

In.

mm

in.

mm

in.

mm

in.

mm

in.

mm

in.

mm

in.

mm

in.

mm

in.

mm

3 4 6 8 10

80 100 150 200 250

40 52 621⁄2 75 90

1016 1321 1588 1905 2286

187⁄8 223⁄4 301⁄8 373⁄4 453⁄4

479 578 765 959 1162

31⁄2 33⁄4 41⁄2 51⁄2 61⁄2

89 95 114 140 165

12 17 21 26 32

305 432 533 660 813

24 34 411⁄2 52 64

610 864 1054 1321 1626

14 15 16 17 18

356 381 406 432 457

3 6 71⁄2 9 101⁄4

76 152 191 229 260

14 14 16 21 25

356 356 406 533 635

* Service clearance for check assembly from center. †UL/FM approved backflow preventers must include UL/FM approved OSY.

W/OSY† gates lbs. kgs.

190 403 727 1327 2093

86 183 330 602 949

Capacity *Typical maximum system flow rate (7.5 ft./Sec.) **UL rated flow 3" (80mm)

8" (200mm)

**

96 14

kPa psi

**

Pressure Drop

Pressure Drop

kPa psi

69 10 41

6

14

2

0

0 0 0

100 380

200 760 5 1.5

300 1140

400 1520

7.5 2.3

15 4.6

96 14

41

6

14

2

0

0

gpm lpm fps mps

0 0

400 1520

800 3040 5 1.5

Pressure Drop

96 14

6

14

2

0

0 0 0

100 380

200 760 5 1.5

kPa psi

**

300 1140 7.5 2.3

400 1520

500 1900 15 4.6

600 2280

gpm lpm fps mps

6" (150mm)

**

Pressure Drop

96 14

**

69 10 41

6

14

2

0

0 0 0

200 760

400 1520 5 1.5

600 2280

800 3040 7.5 2.3

Flow

**

96 14

2000 7600 15 4.6

4000 gpm 15200 lpm fps mps

1000 3800

1200 4500

1400 5320 15 4.6

gpm lpm fps mps

**

69 10 41

6

14

2

0

0 0 0

400 1520

800 3040

1200 4560 5 1.5

1600 6080

2000 7600 7.5 2.3

Flow

Flow

kPa psi

1600 6080

10" (250mm)

4" (100mm)

69 10 41

1200 456 7.5 2.3

Flow

Pressure Drop

**

**

69 10

Flow

kPa psi

**

2400 9120

2800 10,640

3200 3600 4000 12,160 13,680 15200 15 4.6

gpm lpm fps mps

For additional information, visit our web site at: www.watts.com

A Watts Water Technologies Company

ES-709DCDA

0638

USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca

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