LF850 Large
Lead Free* MasterSeries In-Line Double Check Valve Assembly Backflow Preventers - Large Diameter
Features
- Prevents the backflow of pollutants that are objectionable (non-toxic) from entering into the potable water supply
- Primarily used on potable drinking water systems where code mandates protection from backpressure and backsiphonage conditions
- Utilizes advanced ArmorTek coating technology to resist corrosion of internals
- The valve body shall utilize a coating system with built in electrochemical corrosion inhibitor and microbial inhibitor
- Inline serviceable assembly requires no special tools
- Winterization feature with disc retainers and valve body drain ports
MasterSeries LF850 Lead Free* double check valve assembly backflow preventers are designed to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. This assembly consists of a fused epoxy coated ductile iron body using ArmorTek® epoxy coating technology for advanced corrosion resistance and NRS resilient wedge gate valves. Optional OSY RW gate valves are available. Maximum working pressure: 175 psi (12.1 bar).
The coating on this backflow assembly uses ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.
To learn more visit: https://www.watts.com/armortek
Literature
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF850 Large
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| Model | Product Used On | Kit Contents |
|---|---|---|
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LFFRK 850-866V-D 8-10 870-886 8
Disc Kit |
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LFFRK 850-886V-D 2 1/2-3
Disc Kit |
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LFFRK 850-886V-D 4
Disc Kit |
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LFFRK 850-886V-D 6
Disc Kit |
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LFFRK 85X/87X-RT 4
Complete Rubber Parts Kit |
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LFFRK 850/870-CK4 856/876 CK1 860/880 CK2 4
Check Replacement Kit-Inlet |
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LFFRK 850-886V-S 4
Seat Ring/Arm Kit |
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Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. Some certification agencies allow you to search by product name and brand.