Model 350 SPECIFICATION SUBMITTAL SHEET

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DOM - with Clow gate valves, 51% Buy American Act Compliant. ACCESSORIES. ❑ Repair kit (rubber only). ❑ Thermal expansion tank (Model XT). ❑ OS & Y ...

Model 350

®

a

®

Double Check Valve Assembly

company

SPECIFICATION SUBMITTAL SHEET APPLICATION Designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. The Model 350 shall provide protection where a potential health hazard does not exist. Ideal for use where lead-free* valves are required.

FEATURES Sizes:  2 1/2"  3"  4"  6"  8" 10"  12" Maximum working water pressure 175 PSI Maximum working water temperature 140°F Hydrostatic test pressure 350 PSI End connections (Grooved for steel pipe) AWWA C606 (Flanged) ANSI B16.1 Class 125 OPTIONS

STANDARDS COMPLIANCE : (Sizes 2 1/2"-10" Horiz. & Vert.) (Size 12" horizontal)

        

(Suffixes can be combined)  -  FS -  FSC -  G -  GF -  FG -  L -  OSY -  PI -  DOM -

with NRS shut-off valves (standard) with cast iron wye type strainer (flanged only 2-1/2"-10") with epoxy coated wye type strainer (flanged only 2-1/2"-10") with groove end gate valves (2-1/2" - 10") with grooved inlet gate connection and flanged outlet gate connection (2-1/2" - 10") with flanged inlet gate connection and grooved outlet gate connection (2-1/2" - 10") less shut-off valves (flanged body connections) with OS & Y gate valves Post Indicator gate Valve (3"-12") with Clow gate valves, 51% Buy American Act Compliant



   

ASSE® Listed 1015 CSA® Certified IAPMO® Listed IAPMO® Listed - California Lead Plumbing Law* AWWA Compliant C510, and C550 UL® Classified C-UL® Classified FM® Approved (2 1/2" - 10") Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California NYC MEA 50-01-M (2 1/2" - 3") NYC MEA 297-98-M (4" - 6") NYC MEA 316-01-M (8" - 10") NSF® Listed-Standard 61, Annex G*

*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT) MATERIALS Main valve body Access covers Coatings Internals Fasteners Seal ring O-ring Springs

ACCESSORIES  Repair kit (rubber only)  Thermal expansion tank (Model XT)  OS & Y Gate valve tamper switch (OSY-40)  Test Cock Lock (Model TCL24)

Ductile Iron ASTM A 536 Grade 4 Ductile Iron ASTM A 536 Grade 4 FDA Approved fusion epoxy finish Stainless steel, 300 Series NORYL™, NSF Listed Stainless Steel, 300 Series EPDM (FDA approved) Buna Nitrile (FDA approved) Stainless Steel, 300 Series

E

E

Attention: Model 350 (flange body) and 350A (grooved body) have different lay lengths.

F

A

F

B

C

D

A

G

B

D

C

MODEL 350 OSYG SHOWN ABOVE

DIMENSIONS & WEIGHTS (do not include pkg.) DIMENSION (approximate)

SIZE



B LESS GATE VALVES

A

in.

mm

in.

in.

in.

mm

in.

mm

in.

mm

791

15 7/8

403 3 3/4

95

7 1/4 184 16 3/8

416

13 7/8

352

11 3/8 289 3 1/2

mm

lbs.

kg

lbs.

kg

lbs.

kg

89

41 1/4 1048

53

24.1

155

70.4

163

74

3

80

32

816

15 7/8

403 3 3/4

95

7 1/4 184 18 7/8

479

15 5/8

397

4

100 37 5/8

956

19 1/2

495 4 1/2 114

8

203 22 3/4

578

18 1/4

464

12 3/8 314 3 1/2

89

42 3/4 1086

53

24.1

177

80.4

183

83

14 3/4 375

6

152 52 3/4 1340

91

41.3

271

123

281

127.6

6

150 44 3/4 1137 23 1/2

597

6

152

10

254 30 1/8

765

23 3/4

603

8

200 60 3/4 1543 37 3/4

959

10

254

11

279 37 3/4

959

29 1/4

743

22 1/2 572 8 1/2 216

7

178 62 3/4 1594 165

74.9

449

203.8

465

211

2159 358 162.5

810

367.7

834

378.6

10

250 63 3/4 1619 37 3/4

959

10

254

11

279 45 3/4 1162 35 3/8

899

26 1/2 673 8 1/2 216 93 1/4 2369 388 176.2 1148 521.2 1206 547.5

12

300 66 1/4 1683

965

10

254

12

305 53 1/8 1349 40 5/8 1032

30

762

9

mm

229

in.

WITH OS&Y GATE VALVES

31

483

in.

G

WEIGHT WITH NRS GATE VALVES

65

19

mm

F

WITHOUT GATES VALVES

mm

Page 1 of 2

mm

E NRS GATE

in.

(Patent No. 5,913,331

in.

D

E OS&Y CLOSED

2 1/2

38

mm

C

E OS&Y OPEN

85 n/a

n/a

447 202.8 1493 677.2 1607

DOCUMENT #: BF-350

729

REVISION: 11/12

WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766 In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292 Product Support Help Line: 877-BACKFLOW (877-222-5356) • Website: http://www.zurn.com

FLOW CHARACTERISTICS MODEL 350 2 1/2", 3" & 4" (STANDARD & METRIC) FLOW RATES (l/s)

6.3

12.6

18.9

25.2

31.5

37.8

44.1

50.4

15

104

2-1/2" (65mm)

10

69

3" (80mm) 4" (100mm)

5

35

0

0 0

100

200

300

400

500

FLOW RATES (GPM)

600

700

PRESSURE LOSS (kpa)

PRESSURE LOSS (PSIG)

0

800

MODEL 350 6" & 8" (STANDARD & METRIC) FLOW RATES (l/s)

25.2

50.4

75.6

100.8

126.0

151.2

15

104

10

6" (150mm)

69

8" (200mm)

5

35

0

0 0

400

800

1200

1600

FLOW RATES (GPM)

2000

PRESSURE LOSS (kpa)

PRESSURE LOSS (PSIG)

0.0

2400

MODEL 350 10" & 12" (STANDARD & METRIC) FLOW RATES (l/s)

63.0

126.0

189.0

252.0 104

10" (250mm)

10

69

12" (300mm)

5

35

0

0 0

1000

2000



FLOW RATES (GPM)

PROTECTIVE ENCLOSURE

12" MIN. 30" MAX.

DIRECTION OF FLOW

OUTDOOR INSTALLATION

Capacity thru Schedule 40 Pipe (GPM) 5 ft/sec

4000

Rated Flow (Established by approval agencies)

TYPICAL INSTALLATION Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted at a minimum of 12" (305mm) and a maximum of 30" (762mm) above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.

Pipe size

3000

7.5 ft/sec

10 ft/sec

15 ft/sec

2 1/2"

75

112

149

224

3"

115

173

230

346

4"

198

298

397

595

6"

450

675

900

1351

8"

780

1169

1559

2339

10"

1229

1843

2458

3687

12"

1763

2644

3525

5288

SUPPORT

DIRECTION OF FLOW

PRESSURELOSS (PSIG)

15

PRESSURE LOSS (kpa)

0.0

12" MIN. 30" MAX.

DIRECTION OF FLOW

INDOOR INSTALLATION (350GF)

VERTICAL INSTALLATION (350G)

SPECIFICATIONS The Double Check Backflow Prevention Assembly shall be ASSE® Listed 1015, and supplied with full port gate valves. The main body and access cover shall be epoxy coated ductile iron (ASTM A 536 Grade 4), the seat ring and check valve shall be NORYL™, the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The checks shall be accessible for maintenance without removing the device from the line. The Double Check Backflow Prevention Assembly shall be a WILKINS Model 350. WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766 IN CANADA: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292 Product Support Help Line: 877-BACKFLOW (877-222-5356) • Website: http://www.zurn.com

Page 2 of 2

Recommend Documents
4/12. SPECIFICATION SUBMITTAL SHEET. (Patent No. 7,434,593, 7,784,483 & 7,905,250). Page 1 of 2. Model 350. Double Check Valve Assembly. WILKINS a Zurn ... Reinforced Nylon. Fasteners. Stainless Steel, 300 Series. Elastomers. Silicone (FDA Approved).

In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292. Product Support Help Line: 877-BACKFLOW (877-222-5356) • Website: http://www.zurn.com. B. G. A. E. F. C. D. G. A. H. E. F. C. D.

Model 350. Double Check Valve Assembly. WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805-238-7100 Fax:805-238-5766. In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905

outlet gate connection (2-1/2" - 10"). ❑. FG - with flanged inlet gate connection and grooved outlet gate connection (2-1/2" - 10"). ❑. L - less shut-off valves (flanged body connections). ❑ OSY - with OS & Y gate valves. ❑. PI - Post Indicat

(Suffixes can be combined). ❑. - with NRS shut-off valves (standard). ❑. FS - with cast iron wye type strainer. (flanged only 2-1/2"-10"). ❑ FSC - with epoxy coated ...

where a potential health hazard does not exist. Ideal for use where lead-free* valves are required. STANDARDS COMPLIANCE : (Sizes 2 1/2"-10" Horiz. & Vert.).

In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905-405-8272 Fax:905-405-1292. Product Support Help Line: 877-BACKFLOW (877-222-5356) • Website: http://www.zurn.com. MODEL. 475DA &. 475DAV. SIZE. DIMENSIONS (

FEATURES. Sizes: ❑1/2". ❑ 3/4". ❑ 1". ❑ 1 1/4". ❑1 1/2". ❑ 2". ❑ 2 1/2" ❑ 3". Maximum working water pressure. 300 psi. Maximum working water temperature. 140° F. Reduced pressure range. 25 psi to 75 psi. Factory preset (field set 2 1

300 PSI WOG. Maximum temperature. 180°F. End connections. Threaded ANSI. B1.20.1. Flare connection (860FT). 45° Flare SAE. APPLICATION. Designed for installation on backflow preventers as a test port for attaching a differential pressure gauge. Opt

BF-AG. 7/12. SPECIFICATION SUBMITTAL SHEET. Model AG. Air Gap Adaptor Fitting. WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA ...