In-line serviceable assembly without special tools
Approved for non-health hazard applications
Description
The 10 inch FEBCO MasterSeries LF850 Lead Free Double Check Valve Backflow Preventer Assembly is designed for non-health hazard applications, preventing polluted water backflow into potable water systems due to backsiphonage or backpressure. It features a durable ductile iron body with ArmorTek® epoxy coating for corrosion resistance and domestic non-rising stem shutoff valves. This assembly is lead-free, ensuring compliance with plumbing codes. Its in-line serviceable design allows for easy maintenance without special tools. Ideal for continuous pressure piping applications, it provides reliable protection at service line entrances and cross-connections. Item number 0683085.
Help Me Connect
The FEBCO MasterSeries® LF850 double check valve assembly is designed for installation on potable water supply lines at cross-connection points. It features end connections compliant to ASME B16.1 Class 125 and AWWA Class D Flange standards. This assembly connects into your piping system using flanged connections.
This 10 inch lead free MasterSeries® LF850 double check valve backflow preventer assembly is designed to prevent the backflow of polluted water into the potable water supply. It protects against backsiphonage and backpressure in continuous pressure piping applications and at cross-connections identified as non-health hazards.
The assembly features a compact modular design for easy in-line maintenance without special tools, making it ideal for non-toxic contaminant protection at the service line entrance.
Construction & Materials
Ductile iron valve body design with a fused epoxy coating.
ArmorTek® coating technology, a patented 3-part advanced epoxy system, resists microbial-induced corrosion (MIC) and protects exposed metal surfaces.
Includes domestic non-rising stem resilient seated gate valves.
Two in-line independent positive seating check modules with stainless steel check components.
Reversible and replaceable discs and field replaceable seats.
Captured modular spring assembly and captured O-ring design.
Clapper check assembly with commonality between 1st and 2nd check components.
Top mounted test cocks.
Key Features
In-line serviceable assembly requires no special tools for servicing.
Lead Free* construction (wetted surface contains less than 0.25% lead by weight).
Winterization feature with disc retainers and valve body drain ports.
Specifications
Size: 10 Inch
Valve Type: Double Check Backflow Preventer
Body Material: Ductile Iron Grade 65-45-12
Coating: ArmorTek® Powder Coating (internal and external surfaces)
Temperature Range: 33°F - 140°F (0.5°C - 60°C) Continuous
Lead Free Construction: Wetted surface contains less than 0.25% lead by weight
Certificates & Approvals
Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
ASSE 1015 Listed
UL Classified (U.S. & Canada)
FM Approved
IAPMO
CSA Listed
AWWA Standard C510 Compliant
End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
Certified to NSF/ANSI 61-G
FAQs
What is the primary purpose of the FEBCO MasterSeries® LF850 Double Check Valve Assembly?
This assembly is designed to prevent the backflow of polluted water from entering potable water supplies due to backsiphonage or backpressure, specifically for non-health hazard (pollutant) applications.
What kind of shutoff valves does this assembly include?
The 10 inch LF850-DNRS assembly includes domestic Non-Rising Stem (NRS) resilient seated gate valves, which are compliant with AWWA C509 standards.
Is the FEBCO MasterSeries® LF850 considered "Lead Free"?
Yes, this product features Lead Free construction, meaning the wetted surface of the product that contacts consumable water contains less than 0.25% of lead by weight.
What material is the valve body made from and how is it protected?
The valve body is constructed from ductile iron Grade 65-45-12 and is protected with ArmorTek® powder coating, a patented three-part advanced epoxy system applied to both internal and external surfaces to resist microbial-induced and electrochemical corrosion.
What are the maximum and minimum operating pressure ratings for this backflow preventer?
The maximum working pressure for this 10 inch assembly is 175 PSI (12.1 bar), and the minimum working pressure is 10 PSI (0.7 bar).
