6 LF870-W-LG
Item Number: 88005413Brand - Febco
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- Size: 6 inch
- Weight: 386.0 lb
- Type: Double Check Valve Assembly
- Design: Lead Free, N-Pattern
- Corrosion Protection: ArmorTek® Epoxy Coating
- Body Material: Ductile Iron Grade 65-45-12
- Maximum Working Pressure: 175 psi
- Certified: ASSE 1015, UL Classified, FM Approved, IAPMO, NSF/ANSI 61-G
- Serviceability: In-line, no special tools required
Description
Description
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This 6 inch LF870W Double Check Valve Assembly is designed for horizontal N-pattern installations on the potable water supply. Its flanged end connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards. The assembly's longer gate-to-gate length is engineered for drop-in replacement of comparable N-pattern backflow preventer valves.
It protects cross-connections against backsiphonage and backpressure in non-health hazard (pollutant) applications. Installation should adhere to local governing authority codes.

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Additional Details
This 6 inch lead free MasterSeries® double check valve backflow preventer assembly (Model LF870W) is designed for non-health hazard (pollutant) applications to prevent backflow into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection of non-health hazard cross-connections or for containment at the service line entrance.
Design & Construction
- Features a longer gate-to-gate length for drop-in replacement of competitor N-pattern valves.
- Constructed with an epoxy coated ductile iron body and flanged end connections.
- Includes two independent clapper style check valves with replaceable stainless steel seats and disc rubbers.
- Equipped with four properly located resilient seated test cocks as specified by AWWA Standard C510.
- Designed for in-line servicing without requiring special tools.
Corrosion Protection
- Iron components are coated with ArmorTek®, a patented three-part advanced epoxy system.
- ArmorTek® coating technology protects internal and external surfaces against microbial-induced corrosion (MIC) and exposed metal substrate corrosion.
Lead Free Compliance
- Lead Free* construction ensures the wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
- Complies with state codes and standards requiring reduced lead content.
Specifications
- Model: LF870W (N-Pattern)
- Size: 6 inch
- Product Type: Double Check Valve Assembly
- Orientation: Horizontal (N-Pattern)
- Main Valve Body Material: Ductile Iron Grade 65-45-12
- Coating: ArmorTek Powder Coating (internal and external surfaces)
- Check Components: Stainless Steel
- Check Seats: Stainless Steel
- Disc Holder: Stainless Steel
- Elastomer Disc: Silicone
- Spring Material: Stainless Steel
- Clamp Material: AWWA C606
- Maximum Working Pressure: 175 psi (12.1 bar)
- Minimum Working Pressure: 10 psi (0.7 bar)
- Hydrostatic Test Pressure: 350 psi (24.1 bar)
- Hydrostatic Safety Pressure: 700 psi (48.3 bar)
- 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)
- Listed: ASSE 1015
- Classified: UL (U.S. & Canada)
- Approved: FM
- Certified: IAPMO
- Compliant: AWWA Standard C510
- End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
- NSF Certification: NSF/ANSI 61-G