Lead Free: Wetted surfaces contain less than 0.25% lead
Maximum Working Pressure: 175 psi
Temperature Range: 33°F - 140°F
Body Material: Ductile Iron Grade 65-45-12
Coating: ArmorTek® Fusion Epoxy, AWWA C550
Approvals: ASSE 1015, UL Classified, FM Approved, IAPMO, CSA Listed, NSF/ANSI 61-G
Description
This 2 1/2 inch FEBCO MasterSeries LF850 Lead Free Double Check Valve Assembly with OS&Y Gate Valves provides essential backflow prevention for non-health hazard (pollutant) applications in potable water systems. Designed to protect against backsiphonage and backpressure, it features a durable ductile iron body with ArmorTek® fusion epoxy coating for superior corrosion resistance, including microbial-induced corrosion. The in-line serviceable design allows for easy maintenance without special tools. With a maximum working pressure of 175 psi and a temperature range of 33°F to 140°F, this ASSE 1015 and UL Classified assembly ensures reliable performance. Item number 0683074.
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Connections
This 2 1/2 inch double check valve assembly features flanged end connections.
The flanges are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
The assembly is fitted with AWWA Compliant inlet/outlet resilient seated OS&Y gate valves.
For fire sprinkler applications, the assembly utilizes UL Classified/FM Approved inlet/outlet resilient seated shutoff valves.
This 2 1/2 inch lead free MasterSeries® LF850 double check valve assembly with OS&Y (Outside Stem & Yoke) gate valves is engineered to prevent the backflow of polluted water from entering potable water supplies due to backsiphonage and backpressure conditions. It provides essential protection in continuous pressure piping applications and at cross-connections identified as non-health hazards, compliant with local governing water utility codes.
Features
Lead Free construction, with wetted surfaces containing less than 0.25% of lead by weight, to comply with low lead installation requirements.
Equipped with OS&Y resilient wedge gate valves that are UL Classified/FM Approved and compliant with AWWA C515.
Main valve body made from Ductile iron Grade 65-45-12, with ArmorTek® powder coating applied to internal and external surfaces for resistance against electrochemical and microbial-induced corrosion (MIC).
Designed for in-line servicing; no special tools required for maintenance of the two independently acting clapper-style check modules.
Features stainless steel check components, reversible and replaceable elastomer discs (silicone), and field replaceable seats (stainless steel).
Includes four properly located resilient seated test cocks as specified by AWWA Standard C510.
Suitable for both horizontal and vertical up flow orientation.
Additional features include a captured modular spring assembly, winterization feature with disc retainers and valve body drain ports, and a captured O-ring design.
Temperature Range: 33°F - 140°F (0.5°C ~ 60°C) Continuous
Certificates & Approvals
Approved by 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 use of the Febco LF850 Double Check Valve Assembly?
It is designed to prevent the backflow of polluted water into potable water systems due to backsiphonage and backpressure conditions, specifically for non-health hazard (pollutant) applications.
Does this assembly comply with lead-free requirements?
Yes, this is a Lead Free* assembly. Its wetted surfaces contain less than 0.25% of lead by weight, complying with low lead installation requirements.
What type of coating is used on the valve body for corrosion protection?
The main valve body is coated with ArmorTek®, a patented three-part advanced fusion epoxy system. This coating is applied internally and externally to reduce microbial-induced corrosion (MIC) and protect exposed metal surfaces.
Are special tools required for servicing this backflow preventer?
No, the Febco LF850 assembly is designed for in-line servicing, and no special tools are required for maintaining its check modules, which are accessed through independently top entry covers.
What are the key approvals and standards this assembly meets?
This assembly is ASSE 1015 Listed, UL Classified (U.S. & Canada), FM Approved, IAPMO, CSA Listed, AWWA Standard C510 Compliant, and Certified to NSF/ANSI 61-G.
