Submittal Sheet

WILKINS a Zurn company, 1747 Commerce Way, Paso Robles, CA 93446 Phone:[phone] Fax:[phone]
In Canada: ZURN INDUSTRIES LIMITED, 3544 Nashua Dr., Mississauga, Ontario L4V 1L2 Phone:[phone] Fax:[phone]
Product Support Help Line: 877-BACKFLOW (877-222-5356) • Website: http://www.zurn.com
a company
®
®
DOCUMENT #: REVISION:
BF-375 10/12
SPECIFICATION SUBMITTAL SHEET
(Patent No. 5,913,331)
Page 1 of 2
Model 375
Reduced Pressure Principle Assembly
FEATURES
Sizes:  2 1/2"  3"  4"  6"  8"  10"
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 (Sufxes can be combined)
 - with NRS shut-off valves (standard)
 FS - with cast iron wye type strainer (anged only)
 FSC - with epoxy coated wye type strainer (anged only)
 G - with grooved end NRS gate valves
 GF - with grooved inlet gate connection and anged
outlet gate connection
 FG - with anged inlet gate connection and grooved
outlet gate connection
 L - less shut-off valves (anged body connections)
 MS - with Integral Relief Valve Monitor Switch
 OSY - with OS&Y gate valves
 PI - with Post Indicator gate valve (3" - 10")
 DOM - with Clow gate valves, 51% Buy American Act Compliant
ACCESSORIES
 Repair kit (rubber only)
 Thermal expansion tank (Model XT)
 OS & Y Gate valve tamper switch (OSY-40)
 Air gap (Model AG)
 Electronic Solenoid Timer (Model EST)
 QT-SET Quick Test Fitting Set
 Test Cock Lock (Model TCL24)
APPLICATION
Designed for installation on potable water lines to protect
against both backsiphonage and backpressure of contaminated
water into the potable water supply. The Model 375 provides
protection where a potential health hazard exists. Ideal for use
where lead-free* valves are required
STANDARDS COMPLIANCE
(Unless otherwise noted, sizes 2 1/2" thru 10")
 ASSE® Listed 1013
 IAPMO® Listed
 IAPMO® Listed - California Lead Plumbing Law*
 CSA® Certied (2 1/2" thru 8")
 AWWA Compliant C511, and C550
 FM® Approved
 UL® Classied
 C-UL® Classied
 NYC MEA 49-01-M Vol 2
 Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California.
 NSF® Listed-Standard 61, Annex G*
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
MATERIALS
Main valve body Ductile Iron ASTM A 536 Grade 4
Access covers Ductile Iron ASTM A 536 Grade 4
Coatings FDA Approved fusion epoxy nish
Internals Stainless steel, 300 Series
NORYL™, NSF Listed
Fasteners Stainless Steel, 300 Series
Seal rings EPDM (FDA approved)
O-rings Buna Nitrile (FDA approved)
Springs Stainless Steel, 300 Series
Sensing line Stainless Steel, braided hose
MODEL
375
SIZE
DIMENSION (approximate) WEIGHT
A
B LESS
GATE
VALVES
C D
E
OS&Y
OPEN
E
OS&Y
CLOSED
E
NRS
GATE
F G H
WITHOUT
GATE
VALVES
WITH
NRS
VALVES
WITH
OS&Y
GATE
VALVES
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg lbs. kg lbs. kg
2 1/2 65 31 787 15 7/8 403 7 1/4 184 3 3/4 95 16 3/8 416 13 7/8 352 11 3/8 289 9 1/2 241 8 3/8 213 41 1/4 1048 60 27.2 162 73.5 170 77.2
3 80 32 813 15 7/8 403 7 1/4 184 3 3/4 95 18 7/8 479 15 5/8 397 12 3/8 314 9 1/2 241 8 3/8 213 42 3/4 1086 60 27.2 184 83.5 190 86.3
4 100 37 5/8 956 19 1/2 495 8 203 4 1/2 114 22 3/4 578 18 1/4 464 14 3/4 375 11 279 9 1/4 235 52 3/4 1340 98 44.5 278 126.5 288 130.8
6 150 44 3/4 1137 23 1/2 597 10 254 6 152 30 1/8 765 23 3/4 603 19 483 12 3/8 314 10 3/4 273 62 3/4 1594 175 79.5 459 208.4 475 215.6
8 200 60 3/4 1543 37 3/4 959 11 279 10 254 37 3/4 959 29 1/4 743 22 1/2 572 15 3/8 391 16 3/4 426 85 2159 377 171 829 376.4 853 387.3
10 250 63 3/4 1619 37 3/4 959 11 279 10 254 45 3/4 1162 35 3/8 899 26 1/2 673 15 3/8 391 16 3/4 426 93 1/4 2369 407 185 1167 530 1225 556
Relief Valve discharge port:
2 1/2" - 6" - 2.75 sq. in.
8" - 10" - 3.69 sq. in.
Attention: Model 375 (ange
body) and Model 375A
(grooved body) have different
lay lengths.
E
F
C
D
B
E
F
G
C
D
G
A
B
H
A
MODEL 375OSYG SHOWN ABOVE
DIMENSIONS & WEIGHTS (do not include pkg.)