The FEBCO MasterSeries LF850 10 inch Lead Free Double Check Valve Assembly is an in-line backflow preventer designed to protect potable water systems from pollutants in non-health hazard applications. It prevents backflow due to backsiphonage and backpressure, making it ideal for containment at service line entrances or non-health hazard cross-connections. Constructed with a ductile iron body and an ArmorTek® epoxy coating, it offers superior corrosion resistance. This assembly features OSY shutoff valves, replaceable stainless steel check seats, and silicone elastomer discs, ensuring durability and easy servicing. Its lead-free design complies with current low lead installation requirements.
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Connections
This 10 inch backflow preventer assembly features flanged end connections.
The flanges are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
Designed for installation on potable water supply lines to protect against backflow in non-health hazard applications.
This FEBCO MasterSeries LF850 10 inch Lead Free Double Check Valve Assembly is specifically designed to protect potable drinking water systems from backflow of pollutants. It effectively prevents contaminants from entering the water supply due to backsiphonage and backpressure conditions in non-health hazard applications.
The assembly features a durable ductile iron body with flanged end connections, incorporating two in-line independent check valves, and is equipped with OSY (Outside Stem and Yoke) resilient seated shutoff valves.
Features
In-line serviceable assembly requiring no special tools for maintenance.
Patented ArmorTek® 3-part advanced epoxy coating system to resist microbial-induced corrosion (MIC) and protect exposed metal substrate.
Includes Lead Free* construction to comply with low lead installation requirements (*the wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight*).
Two independently acting clapper style check modules with replaceable stainless steel seats and silicone elastomer discs.
Captured modular spring assembly and captured O-ring design for reliable operation.
Features field replaceable seats and reversible, replaceable discs for extended service life.
Ductile iron valve body design for robust durability.
Winterization feature with disc retainers and valve body drain ports.
Commonality between 1st and 2nd check components simplifies parts management.
Assembly Flow Orientation: Horizontal & Vertical Up
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
CSA B64.5
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 type of backflow prevention does this assembly provide?
This is a Double Check Valve Assembly, designed to protect against backpressure and backsiphonage conditions for non-health hazard (pollutant) applications.
What are the main materials used in this 10 inch backflow preventer?
The main valve body is ductile iron grade 65-45-12. Internal components like check seats, disc holders, and springs are stainless steel, with silicone elastomer discs. The body is coated with ArmorTek® advanced epoxy.
What does "Lead Free" mean for this product?
"Lead Free" means that the wetted surface of this product, which comes into contact with consumable water, contains less than 0.25% of lead by weight, complying with low lead installation requirements.
What is the maximum operating pressure for the FEBCO LF850 10 inch assembly?
The maximum working pressure for this backflow preventer is 175 psi (12.1 bar). It also has a hydrostatic test pressure of 350 psi and a hydrostatic safety pressure of 700 psi.
What type of shutoff valves are included with this assembly?
This assembly includes OSY (Outside Stem and Yoke) resilient wedge gate shutoff valves, which are UL Classified and FM Approved per AWWA C515 standards.
