Plans NUY /,l6 /ZU11 /'1'UE 10:lb AM FAX No, P. 004
C Y OF T'IGARD
----c. Approved [ 1-1-
REPLACE 6" Conditionally Approved [ ]
BACKFLOW DEVICE 1 1 / 6" RaeLetter to: Follow [ ]
Attached
Permit Number: F
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COUPLING
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BACKFLOW REPLACEMENT LTA _ , ..._ _ _ ___._ _ _
15705 72ND P AVE. PORTLAND, OR. FIRE INC.
TITLE BACK E
DATE 11—OS -2011 SCALE 1/4 .. 1' -0" SHEET I OF 1 FIRE PROTECTION CONTRACTORS
CONY 11 — ORWN. CS. BYETE HET , .705 8.w. Md. PORTLAND OR OM9. 15091820 -4098 —
1VUV/ I / / L U I 1 / 1 1 1 U i i ; 01 Hlvi t'AA 1V0, Y. UU4
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WILKINS Model 350ADA
ZtlRN c urlparjy . .
Double Check Detector Assembly-
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•
11 APPLICATION
. F � Designed for installation on potable water lines connections In
- I`' 1 fire sprinkler systems to protect against both backsiphonage and
i • r„ „ ., n.r T .' backpressure of polluted water into the potable water supply.
Model 350ADA shall provide protection where a potential health
' hazard does not exist. Incorporates metered by- pass.to detect
(With OS &Y gates) (with BGVIC valves) leaks and unauthorized water use.
FEATURES STANDARDS COMPLIANCE (HORIZONTAL & VERTICAL)
Sizes: ❑ 2 1/2 "" 0 3"" Q 4" 6" ❑ 8" 010" • ASSE® Listed 1048
Maximum working water pressure 175 PSI • AWWA Compliant C510 (with gates only) -
Maximum working water temperature 140 °F • GSA® Certified (4" - 8 ")
Hydrostatic test pressure 350 PSI • UL® Classified
End connections (Grooved for steel pipe) AWWA C606 • GUh® Classified
(Flanged) ANSI 816.1 • FM® Approved
Class 125
"2 1/2" & 3" sizes use 4" body & reducer couplings • Approved by the Foundation for Cross Connection
OPTIONS Control and Hydraulic Research at the University of
(Suffixes can be combined) Southern California
❑ - with flanged end OS & Y gate valves (standard) • NYC MEA221 -04M,2 (2 1/2' - 8 ")
❑ L - less shut -off valves (grooved body connections) MATERIALS
❑ LM - less water meter Main valve body Ductile Iron ASTM A 536 Grade 4
O - with remote reading meter Access covers Ductile Iron ASTM A 536 Grade 4
❑ - with gpm meter (standard) Coatings FDA Approved electrostatic epoxy finish
❑ - with cu f /min meter Internals Stainless steel, 300 Series
LI G - with grooved end OS &Y gate valves NORYLhA, NSF Listed
O FG - with flanged inlet gate connection and grooved Fasteners & springs Stainless Steel, 300 Series
outlet gate connection Elastomers EPDM (FDA approved)
❑ PI - with Post Indicator Gate Valves (4" -10 ") Buns Nitrile (FDA approved)
OBGVIC - with grooved and butterfly valves Polymers NORYLTM, NSF Listed
ACCESSORIES ++ •
❑ Repair kit (rubber only)
El Thermal expansion tank (Model XT) j j
❑ OS & Y Gate valve tamper switch (OSY -40) ii .. 1 ` e
❑ Test Cock Lock (Model TCL24) 1,47,-. 4 R 4116,•; :i
MODEL 350ADA t= Ir 7F
DIMENSIONS & WEIGHTS (do not include pkg.) w i th O5 &Y option i ( F
MODEL WEIGHT t _
3 D' WITHOUT wrrH os &V 145TH os &y WITH I 'r o
SIZE GATES GATES (GXF) GATES (GXG) Bu1ThRFLY A �r
VALVE8 (OX0)
in. mm Ibs, kg _ Iba kg Iba. kg roe, ' kg re ., w
2 112 85 105 47.5 207 94 199 90.3 123.8 55.2 Ede' ': --,3 . . ; niM" riiitrn
3 80 104 47 224 101.5 214 97 124.4 58.5 II !►-�'r)L ' _ " 6
MODEL 35OADA g l b
4 100 91 41.3 245 111 218 99.4 123 35.8 _� , � � ��
1111141001, 6 190 141 64 377 171 947 188 189 67.6 BGVIC option J I� � ' i l ili�/ l� ) " F
8 200 302 137 778 353.2 754 342.3 410 186 a 10 293 355 161 1040 472.7 918 416.5 527 239,3 A
MODEL DIMENSION (approximate)
350 ADA A WITH B LESS E E WITH
SIZE A BUTTERFLY GATE C 0 E OS &Y BUTTERFLY F G
OS&Y OPEN
VALVES VALVES CLOSED VALVES Attention:
In mm In mm In mm in mm in mm In mm in mm in mm in mm In mm In mm Model 350ADA
21/2 65 351/8 892 321/8 816 201/8 511 41/2 114 9 229 183/8 ` 416 137/8 352 8 203 6 152 71/4 164 (grooved body)
3 90 381/8 918 33 838 201/8 511 41/2 114 9 229 18718 479 155/8 397 8 203 6 152 71/4 184 and Model 350DA
4 100 381/4 972 331/4 845 19 7/8 505 41/2 114 9 229 22 3/4 578 181/4 464 91/8 232 6 152 8 203 (flange body)
8 150 471/4 1200 401/4 1022 257/8 657 51/2 140 101/2 257 301/8 765 233/4 603 101/8 257 7 176 10 264 have different lay
8 200 32 1576 65 1397 381/2 978 10 254 12 305 373/4 969 291/4 743 11 15/16 303 81/2 216 11 279 lengths.
10 250 64 5/8 1642 58 1/2_1485 381/2 978 10 254 12 305 45 3/4 1162 35 3/3 899 13 5/16 338 8112 216 12 306
(Patent No. 5,913,331) DOCUMENT ii: RFVISION:
RF- 350A Ilia
Page 1 of 2
NO/1 //ZU1 1/1 11: U1 AM r'AX No, P. 000
FLOW CHARACTERISTICS
MODEL 350ADA 2 1/2 ", 3" & 4" (STANDARD & METRIC)
FLOW RATES (I /s)
0.0 12.6 25.2 37.9 50.5
8 15 , - 104
g ---- 721/2" OSEM
Es
ti W
35 W.0 - -- o
u 200 400 600 800
' FLOW RATES (GPM)
MODEL 3$OADA 6 ", 8" & 10" (sTANDARO & METRIC)
FLOW RATES (1k)
0.0 83,1 128,2 182.3 252,4
15 �rr=, ,�� 104
io r = 5�mm _ 8 (200mm)_ _.'� . .- ■
10" SOmm �- 59 A
mm
g 0 .
- o
0 1000 2000 0000 4000
FLOW RATES (OPM)
O Rated Flow (Established by approval agencies)
TYPICAL INSTALLATION Capacity thru Schedule 40 Pipe (GPM)
Local codes shall govern installation requirements. Unless
—
otherwise specified, the assembly shall be mounted at a mini- Pipe size 5 ft/sec 7.5 ft/sec 10ft/sec 15 ft/sec
mum of 12" (305mm) and a maximum of 30" (762mm) above 21/2" 75 112 149 224
adequate drains with sufficient side clearance tor testing and 3,, 115 173 230 346
maintenance. The installation shall be made so that no part of
the unit can be submerged. 4" 198 295 397 595
6" 450 675 900 1351
8" 780 1169 1559 2338
10" 1228 1843 2458 3687
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l. � t1f,�1 12" 1763 2844 3525 5288
I = - ENCLOSURE
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MODEL 350ADABGVIC (VERTICAL INSTALLATION) MODEL 350ADA (OUTDOOR INSTALLATION)
SPECIFICATIONS
The Double Check Detector Backflow Prevention Assembly shall be ASSE® Listed 1048, 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
NoryP' (NSF Listed), the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The first and
second check valves shall be accessible for maintenance without removing the device from the line, The Double Check Detector
9ackflow Prevention Assembly shall be a 1MLKINS Model 350ADA.
VitIamil
WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:805 /238 -7100 Fax:805/238-5766
IN CANADA: ZURN INDUSTRIES LIMITED, 3844 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:905/405 -8272 Fax :905/405 -1292
Product Support Help Line: 1- 877- BACKFLOW (1 -877- 2225356) • Wabslt'e: http : / /wWW,zurn.com
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