SPECIFICATION SUBMITTAL SHEET Model 350

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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. 350 DC. 175 PSIG 180 F. 2. ZURN. WILKINS. XL.

Model 350

®

a

®

Double Check Valve Assembly

company

SPECIFICATION SUBMITTAL SHEET APPLICATION Designed for installation on water lines to protect against both backsiphonage and backpressure of polluted water into the water supply. Assembly shall provide protection where a potential health hazard does not exists.

STANDARDS COMPLIANCE (Horizontal & Vertical)  ASSE® Listed 1015  IAPMO® Listed  CSA® Certified B64.5  Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California  UL® Classified (less shut-off valves only)  C-UL® Classified (less shut-off valves only)

FEATURES Sizes:  3/4"  1"  1-1/4"  1-1/2"  2" Maximum working water pressure 175 PSI Maximum working water temperature 180°F Hydrostatic test pressure 350 PSI End connections Threaded ANSI B1.20.1 OPTIONS (Suffixes can be combined)  - with full port QT ball valves (standard)  L - less ball valves, male pipe thread  XL - with low lead ball valves (See 350XL)  S - with bronze "Y" type strainer  SH - with stainless steel handles  FT - with integral male 45° flare SAE test fitting  BOF - with Blow-Out / Flush fitting ACCESSORIES  Repair kit  Thermal expansion tank (Model XT)  QT-SET Quick Test Fitting Set  Test Cock Lock (Model TCL24)  Winterizing Blow-Out/Flush fitting (RK34-350BOF, RK1-350BOF or RK114-350-375BOF)

MATERIALS Main valve body Housing Fasteners Elastomers Internals Springs Ball Valves Struts

Cast Bronze, ASTM B 584 (3/4-1") Reinforced Nylon Stainless Steel, 300 Series Silicone (FDA Approved) Buna Nitrile (FDA Approved) Delrin, NSF Listed Stainless Steel, 300 series Cast Bronze, ASTM B 584 Forged Brass ASTM B 124

OPTIONAL STRAINER (MODEL S) H

E

E

F

A

F

175 PSIG 180 F

N R NS ZU LKI L I W X

C

B

350 DC

2

D

D

A

(3/4" - 1")

(1-1/4" - 2")

G

G

C

DIMENSIONS & WEIGHTS (do not include pkg.) MODEL 350 SIZE in. 3/4 1 1-1/4 1-1/2 2

A

mm in. mm 20 11 279 25 12 1/4 311 32 14 7/8 378 40 15 1/4 387 50 16 406

B LESS BALL VALVES in. mm 6 5/8 168 7 178 14 3/8 367 14 3/8 367 14 3/8 367

DIMENSIONS (approximate) C in. 1 7/8 2 1/16 3 3/8 3 3/8 3 3/8

D mm 48 52 86 86 86

in. 3 3/4 4 1/8 6 3/4 6 3/4 6 3/4

E mm 95 105 171 171 171

(Patent No. 7,434,593, 7,784,483 & 7,905,250) Page 1 of 2

in. 3 3 1/4 3 3/4 3 3/4 3 3/4

WEIGHT F

mm 76 83 95 95 95

in. 1 1/4 1 3/4 2 1/4 2 1/4 2 1/4

G mm in. mm 32 15 1/8 384 45 17 431 57 20 1/2 521 57 22 559 57 24 609

LESS WITH BALL BALL VALVES VALVES

H in. 11 7/16 12 5/16 18 1/2 20 1/4 20 3/4

mm 291 313 470 514 527

lbs. 2.3 3.0 17.2 17 18

DOCUMENT #: BF-350SM

kg 1.0 1.4 7.8 7.7 8.2

lbs. 4.3 6.0 19 20 22

kg 2.0 2.7 8.6 9.1 10

REVISION: 4/12

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

1.26

2.52

3.79

5.05

3/4" (20mm)

103

1" (25mm)

10

69

5

34

0

0 0

20

40

60

FLOW RATES (GPM)

PRESSURE LOSS (kpa)

PRESSURE LOSS (PSIG)

0.00 15

80

0.0

3.2

15

6.3 1-1/4" (32mm)

10

FLOW RATES (l/s)

9.5

12.6

15.8 103 2" (50mm)

1-1/2" (40mm)

5

69 34

0

0 0

50

100 FLOW RATES (GPM) 150

200

PRESSURE LOSS (kpa)

PRESSURE LOSS (PSIG)

MODEL 350, 350XL 1-1/4", 1-1/2" & 2" (STANDARD & METRIC)

250

⃟ Rated Flow (Established by approval agencies)

TYPICAL INSTALLATION Local codes shall govern installation requirements. To be installed in accordance with the manufacturers’ instructions and the latest edition of the Uniform Plumbing Code. 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. If installed below grade, be certain adequate drainage is provided to prevent the device from being submerged.

Capacity thru Schedule 40 Pipe Pipe size

5 ft/sec

1/2"

5

3/4"

8

7.5 ft/sec

10 ft/sec

15 ft/sec

7

9

14

12

17

25

1"

13

20

27

40

1 1/4"

23

35

47

70

1 1/2"

32

48

63

95

2"

52

78

105

167

PROTECTIVE ENCLOSURE

DIRECTION OF FLOW

/ WILKINS

350 DC

ZURN

S

N

KI

IL

2

WILKINS 350 DC

W

175 PSIG 180° F

OPTIONAL STRAINER (MODEL S)

12" MIN. 30" MAX.

DIRECTION OF FLOW

INDOOR INSTALLATION

OUTDOOR INSTALLATION

SPECIFICATIONS The Double Check Valve Backflow Preventer shall be ASSE® Listed 1015, rated to 180°F and supplied with full port ball valves. The main body shall be Bronze for sizes 3/4" & 1", and Nylon for sizes 1-1/4" to 2". The housing shall be reinforced Nylon and the seat disc elastomers shall be silicone (FDA Approved). The first and second checks shall be accessible for maintenance without removing the device from the line. The Double Check Valve Backflow Preventer 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

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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

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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

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 (

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