Febco 6" LF850 Less Gates

Item Number: 0124524
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$8,237.26
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Valves: Less Shut-off Gates
  • Connection Type: Standard Flange
  • Lay Length: 34.75 inches
  • Unit Weight: 320 lbs
  • Temperature Range: 33°F to 140°F
  • Max. Operating Pressure: 175 psi
  • Body Coating: ArmorTek Fusion Epoxy (AWWA C550)
  • Body Material: Ductile Iron Grade 65-45-12

Description

The Febco 6" LF850 Double Check Valve Assembly is an in-line, lead-free backflow preventer designed to protect potable water systems from non-health hazard pollutants caused by backpressure or backsiphonage. Featuring a durable ductile iron body with patented ArmorTek® advanced epoxy coating, it offers superior resistance to microbial-induced and electrochemical corrosion. This "Less Gates" configuration is supplied without shutoff valves, offering flanged connections compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards. It has a maximum working pressure of 175 psi and operates between 33-140°F. Item number 0124524.

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Installation & Connections

  • This Febco LF850 Double Check Valve Assembly is designed for in-line installation on potable water supply systems.
  • It features standard flanged end connections, which are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
  • It is intended to protect against backflow conditions for non-health hazard (pollutant) applications.
  • As a "Less Gates" configuration, this assembly does not include shutoff valves, which must be sourced separately for a complete and approved installation.
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Additional Details

The Febco 6" LF850 Double Check Valve Assembly is an in-line, lead-free backflow preventer designed to protect potable water systems from non-health hazard pollutants due to backpressure or backsiphonage. This MasterSeries® assembly is specifically configured without shutoff valves ("Less Gates").

Construction & Coating

  • Features a durable ductile iron body construction (Grade 65-45-12).
  • Utilizes ArmorTek® coating technology, a patented three-part advanced epoxy system, applied to internal and external surfaces (AWWA C550 fusion epoxy coated).
  • The ArmorTek® coating is engineered to resist both microbial-induced corrosion (MIC) and general exposed metal substrate corrosion.
  • All wetted surfaces of this product contain less than 0.25% of lead by weight, meeting Lead Free requirements.

Design & Serviceability

  • In-line serviceable assembly for convenient maintenance.
  • No special tools are required for servicing the unit.
  • Includes two independently acting clapper-style check modules with replaceable seats and disc rubbers.
  • Features reversible and replaceable discs and field replaceable seats.
  • Equipped with a captured modular spring assembly and captured O-ring design.
  • Includes a winterization feature with disc retainers and valve body drain ports.
  • Designed with stainless steel check components for longevity.

This is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable. Please be sure to order carefully, and contact us if you have any questions before ordering.

NOTICE: The information provided is not intended to replace full product installation and safety information. You are required to thoroughly read all installation instructions and product safety information before installing this product and to inquire with governing authorities for local installation requirements.

Specifications

  • Type: Double Check Valve Assembly
  • Configuration: Less Shut-off Valves (Less Gates)
  • Nominal Size: 6 inch
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Powder Coating (internal and external, AWWA C550 Fusion Epoxy Coated)
  • Check Seats Material: Stainless Steel
  • Disc Holder Material: Stainless Steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless Steel
  • Lay Length (Dimension B): 34.75 inches
  • Weight: 320 lbs

Performance Ratings

  • 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

  • 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 purpose of the Febco 6" LF850 Double Check Valve Assembly?

This assembly is designed to protect potable drinking water systems from non-health hazard (pollutant) backflow caused by backsiphonage or backpressure conditions. It prevents objectionable, non-toxic substances from entering the clean water supply.

What does "Less Gates" mean for this product?

"Less Gates" indicates that this configuration of the LF850 Double Check Valve Assembly is supplied without shutoff valves. Additional shutoff valves would need to be procured separately to complete the installation for an approved system.

What kind of connections does this backflow preventer use?

The Febco 6" LF850 assembly features standard flanged end connections. These connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards for secure installation.

Is the Febco LF850 resistant to corrosion?

Yes, the ductile iron body is coated with ArmorTek®, a patented three-part advanced epoxy system. This coating is specifically engineered to resist both microbial-induced corrosion (MIC) and general electrochemical corrosion, enhancing the product's lifespan.

What are the operating pressure and temperature limits for this assembly?

This double check valve assembly has a maximum working pressure of 175 psi (12.1 bar). It is designed to operate continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

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