Specifications

54
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Model 40XL FNPT x FNPT end connections
Model 40XLHT with Viton
®
seal, 125 PSI steam rating,
Temperature: 366°F
For Additional Information, reference WK-BPC catalog or visit
our web site.
In-Line Single Check Valve 40XL Series
Features Applications
• 1/4”, 3/8", 1/2", 3/4", 1", 1
1
/
4
”, 1
1
/
2
”, 2”, 2
1
/
2
”, 3", 4”
• Can be used to help eliminate reduced pressure backflow preventer
supply pressure fluctuations or downstream water hammer conditions
• Soft seated slow closing check design
• Brass body construction
• Polyetherimide poppet and NBR rubber seat gasket
• Female NPT inlet and outlet connections
• Stainless steel spring
• May be installed in any position
• Rated at 200 psi, WOG@210°F
• NSF
®
Standard 61 Certified
• California AB 1953 compliant
Designed for installation on potable domestic and commercial water systems such as well pump
systems and applications requiring tight seating. For use as a positive backstop to eliminate reduced
pressure principle backflow preventer discharge caused by pressure fluctuations or water hammer. Its
low-lead design makes the model 40XL perfectly suitable for drinking water applications.
Backflow Preventers