Specifications

33
Tech Support: 855-ONE-ZURN
www.zurn.com
OptionsTypical InstallationX Ref
Model 375 With full port QT ball valves (standard)
Model 375L Less ball valves – male pipe thread
Model 375S With bronze wye strainer
Model 375FT Supplied with fast-test test cocks
Model 375BOF Blow out flush housing for easy winterizing and
start up (bundled with the Model 375, 3/4" & 1")
Model 375SH Stainless steel handles
Model 375SHFT Stainless steel handles, Fast-test test cocks
Model 375XL California AB 1953 compliant
Model 375P Purple pressure vessel for reclaimed water
For Additional Information, reference WK-BPC catalog or visit
our web site.
Reduced Pressure Principle Assembly Model 375 Pat. No. 6,513,543
Features Applications
• 3/4”, 1”, 1
1
/
4
”, 1
1
/
2
”, 2”
• Short lay length – fits in smaller area
• Top access to test cocks and shutoff valves and check assembly
– easy to test
• Entire pressure vessel is removable to facilitate check access for
cleaning or repair
• Easy to winterize by removing pressure vessel between shutoff
valves
• Plastic pressure vessel is a theft deterrent
• Removable pressure vessel eliminates the need of union connections
• Simple design for easy maintenance
• Composite housing and check modules resist corrosion
• ASSE
®
Listed 1013, (horizontal (3/4"-2") / vertical (3/4" & 1")), IAPMO
®
Listed, CSA
®
Certified
• Approved by the Foundation for Cross-Connection Control and
Hydraulic Research at the University of Southern California (3/4” & 1”,
Contact Wilkins for 1
1
/
4
” – 2” approvals)
Wilkins has built a reputation of designing products that answer the need of the customer, and
the voice of the customer was the driving force behind the design of the 375. With its unique,
removable pressure vessel, the 375 is repaired easier and quicker than any other reduced pressure
principle assembly on the market. This unique design allows for rapid commissioning because the
entire pressure vessel can be removed for line flushing. The patented blow-out, flush fitting assists
in system start-ups and winterizations. When there is a need for simplicity and speed in repair, the
Wilkins 375 cannot be beat.
 Air gap (Model AG)
 Thermal expansion tank (Model XT)
 Soft seated check valve (Model 40XL)
 Water hammer arrestor (Model 1250)
 Quick test set (QT-SET)
Local codes shall govern installation requirements. To be installed in accordance with the manu-
facturers’ 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.
The installation shall be made so that no part of the unit can be submerged.
 Test cock lock (Model TCL24)
 Blow out / flush fitting (RK34-375BOF or RK1-375BOF)
 Bronze wye strainer (Model S)
Accessories
Model 375
Model 375BOF
OUTDOOR INSTALLATION
INDOOR INSTALLATION
INLET SHUT OFF
DIRECTION OF FLOW
30" MAX.
12" MIN.
PROTECTIVE
ENCLOSURE
AIR GAP
OPTIONAL
WATER METER
175 PSIG 180ß F
3/4" 375 RP
ZURN
WILKINS
FLOOR
DRAIN
MODEL 375SAG (3/4”- 1”)
30" MAX.
12" MIN.
FLOOR DRAIN
175 PSIG 180° F
ZURN
/ WILKINS
375 RP
B64.4
1013
DIRECTION OF FLOW
2
(3/4” - 1”) 5 1/2
(1-1/4” - 2”) 8 1/8
(3/4” - 1”) 2” PIPE
(1-1/4” - 2”) 3” PIPE
(DRAIN LINE CAN
BE ANY STANDARD
PIPING MATERIAL)
MODEL 375AG (1 1/4”- 2”)
OUTDOOR INSTALLATION
INDOOR INSTALLATION
INLET SHUT OFF
DIRECTION OF FLOW
30" MAX.
12" MIN.
PROTECTIVE
ENCLOSURE
AIR GAP
OPTIONAL
WATER METER
175 PSIG 180ß F
3/4" 375 RP
ZURN
WILKINS
FLOOR
DRAIN
MODEL 375SAG (3/4”- 1”)
30" MAX.
12" MIN.
FLOOR DRAIN
175 PSIG 180° F
ZURN
/ WILKINS
375 RP
B64.4
1013
DIRECTION OF FLOW
2
(3/4” - 1”) 5 1/2
(1-1/4” - 2”) 8 1/8
(3/4” - 1”) 2” PIPE
(1-1/4” - 2”) 3” PIPE
(DRAIN LINE CAN
BE ANY STANDARD
PIPING MATERIAL)
MODEL 375AG (1 1/4”- 2”)
WILKINS WATTS CONBRACO FEBCO AMES HERSEY
375 009QT, 995, 909QT, 40-200-A2 825Y,860 400B, 4000B FRPII
909M1QT, 919
Backflow Preventers