4 LFC300-BFG-GPM
Item Number: 0124585Brand - Ames
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- Product Type: Double Check Detector Backflow Preventer Assembly
- Weight: 84.0 lb
- Nominal Size: 4 inch
- Lead Free: Yes
- Housing Material: 304 Stainless Steel
- Valve Type: Grooved Gear Operated Butterfly Valves
- Maximum Working Pressure: 175 psi
- Temperature Range: 33°F - 110°F
- Installation: Horizontal or Vertical
Description
Description
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Connections
- This 4 inch backflow preventer assembly features groove end connections for the main assembly.
- The grooved fittings allow for integral pipeline adjustment during installation.
- The bypass assembly includes ASME/ANSI flanged end connections.

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Additional Details
This Colt™ 4 inch lead free double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality into the potable water supply due to backsiphonage or backpressure.
It is ideal for protection at cross-connections identified as non-health hazards, such as on fire sprinkler systems and other service line contaminants.
Construction & Design
- Compact modular design with a single access sleeve for easy maintenance
- Approved for horizontal or vertical installation, including "N" pattern
- Consists of a stainless steel body, Tri-Link check valves, grooved gear operated butterfly valves with tamper switch, and four test cocks
- Features a gallon per minute meter to detect underground leaks and unauthorized water use
- Extremely compact design, 70% lighter than traditional designs
- 304 (Schedule 40) stainless steel housing and sleeve
- Groove fittings allow integral pipeline adjustment
- Patented Tri-Link check provides lowest pressure loss and unmatched ease of serviceability
- Available with grooved butterfly valve shutoffs
- Replaceable check disc rubber
- Includes an integrated supervisory switch as an option on each gate valve of the OS&Y model
The information provided is not intended to replace full product installation and safety information or the experience of a trained product installer. Thoroughly read all installation instructions and product safety information before installation. Inquire with governing authorities for local installation requirements.
Specifications
General
- Product Type: Double Check Detector Backflow Preventer Assembly
- SKU: 0124585
- Brand: Colt
- Model: LFC300-BFG
- Nominal Size: 4 inch
- Lead Free: Yes (wetted surface contains less than 0.25% lead by weight)
- Valve Type: Grooved Gear Operated Butterfly Valves with Tamper Switch
Materials
- Housing & Sleeve: 304 (Schedule 40) Stainless Steel
- Elastomers: EPDM, Silicone, Buna 'N'
- Tri-Link Checks: Noryl®, Stainless Steel
- Check Discs: Reversible Silicone or EPDM
- Test Cocks Body: Lead Free Bronze
- Pins & Fasteners: 300 Series Stainless Steel
- Springs: Stainless Steel
Performance
- Maximum Working Pressure: 175 psi (12.06 bar)
- Temperature Range: 33°F - 110°F (5°C - 43°C)
Certificates & Approvals
- Approved by Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
- AWWA C510-97
- ASSE 1048
- CSA B64.5
- UL Classified
- FM Approved
- NSF Certified to NSF/ANSI 372