Specifications
50
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TYPICAL VERTICAL INSTALLATIONTYPICAL HORIZONTAL INSTALLATION
BALL VALVE
MODEL 950LF
MODEL 950LF
MODEL BVMS
DIRECTION OF FLOW
DIRECTION OF FLOW
BALL VALVE
MODEL BVMS
TYPICAL VERTICAL INSTALLATIONTYPICAL HORIZONTAL INSTALLATION
BALL VALVE
MODEL 950LF
MODEL 950LF
MODEL BVMS
DIRECTION OF FLOW
DIRECTION OF FLOW
BALL VALVE
MODEL BVMS
OptionsTypical Installation
Model 950LF FNPT x FNPT end connections
Model 950LLF Less test cocks
For Additional Information, reference WK-BPC catalog or visit
our web site.
Dual Check Valve 950LF Series
Features Applications
• 3/4”, 1”, 1
1
/
4
”, 1
1
/
2
”, 2”
• Dual check valve backflow preventer consisting of two independently
operated spring-loaded center guided check valves in wye pattern
• Designed for fire sprinkler systems
• Bronze body construction
• Female NPT inlet and outlet connections
• Complete with three resilient seated ball valve test cocks
• Entire unit serviceable in line
• Temperature range 33°F – 180°F
• Maximum pressure 175 psi
• Shut-off valve option available
• ASSE
®
Listed 1024 (horizontal/vertical), CSA
®
Certified (horizontal/verti-
cal), UL
®
Classified as to friction loss and body strength only, C-UL
®
Clas-
sified (horizontal)
• Complies with NFPA 13D for flow requirements to residential fire sprin-
klers (3 heads)
In order to answer the need of the fire sprinkler installer, Wilkins introduced the 950LF dual check
for use in residential and commercial, small scale fire protection systems. Equipped with female
end connections, the 950LF lends itself to rapid, easy installation. All of the internal components
are the same used in the 950XL, so you are assured that the 950LF will provide excellent low haz-
ard protection against both backpressure and backsiphonage.
Quick test set (QT-SET)
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, shall be mounted at a minimum of 12” (305mm) and a maximum of 30” (762mm) above adequate drain
and sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.
Accessories
Backflow Preventers