Febco 1/2" LF850

Item Number: 0683038
1 1
$463.13
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 1/2 inch
  • Connection Type: 1/2" Female NPT
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 32°F to 140°F
  • Body Material: Lead Free* Cast Copper Silicon Alloy
  • Lay Length: 10 inches
  • Modular design for easy in-line repairs
  • Approved: CSA B64.4, ASSE 1015, NSF, IAPMO

Description

The Febco 1/2" LF850 Lead Free Small Double Check Valve Assembly is a fully testable device designed to prevent polluted water from entering potable water systems due to backsiphonage or backpressure. Constructed with a Lead Free* cast copper silicon alloy body, it ensures compliance with reduced lead content requirements. This DCVA features 1/2" Female NPT connections and a compact modular design for simplified in-line maintenance. It has a maximum working pressure of 175 psi and operates within a temperature range of 32°F to 140°F. This assembly is ideal for non-health hazard cross-connections and is approved by ASSE 1015, CSA B64.4, NSF, and IAPMO.

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Connections

  • This 1/2 inch Febco LF850 DCVA features 1/2" Female NPT (National Pipe Taper) inlet and outlet connections.
  • It is designed to connect to pipes with corresponding 1/2" Male NPT threads.
  • The NPT end connections comply with ANSI/ASME B1.20.1 standards for reliable plumbing installations.
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Additional Details

The Febco 1/2" LF850 Lead Free Small Double Check Valve Assembly (DCVA) is designed to prevent the backflow of polluted water into the potable water supply due to backsiphonage and backpressure. This fully testable backflow preventer is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards.

The 850 Master Series devices feature a single cover, inline check design, and a compact modular system that facilitates easy maintenance with a single access cover for in-line repairs.

Construction & Features

  • Constructed with a Lead Free* cast copper silicon alloy body for durability and compliance with reduced lead content requirements.
  • Equipped with 1/2" Female NPT inlet/outlet end connections (ANSI/ASME B1.20.1) for easy installation.
  • Includes quarter-turn, full port ball valves for shutoff.
  • Features top-mounted test cocks for simplified testing.
  • Incorporates two in-line independent, positive seating check modules with replaceable seats and seat discs; check modules are completely rebuildable.
  • A freeze sensor connection kit is available separately to activate a monitoring system that triggers alerts for low and freezing temperatures.

WARNING: The freeze sensor solely provides an alert about a possible freeze event and cannot prevent a freeze event from occurring. User action is required to prevent freeze conditions from causing product and/or property damage.

Specifications

  • Size: 1/2 inch
  • Connection Type: Female NPT
  • Lay Length: 10 in
  • Weight: 4.2 lbs

Materials

  • Body Material: Lead Free* Cast Copper Silicon Alloy
  • Elastomers: Silicone
  • Spring Material: Stainless Steel
  • Seat Material: Noryl®

Performance

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Hydrostatic Test Pressure: 350 psi (24.1 bar)
  • Temperature Range: 32°F to 140°F (0°C to 60°C)

Certificates & Approvals

  • ASME
  • IAPMO
  • NSF
  • ASSE 1015
  • CSA B64.4
  • USC-FCCCHR
  • ANSI/AWWA C510-92

FAQs

What is the primary function of the Febco 1/2" LF850 Double Check Valve Assembly?

It prevents the backflow of polluted water into the potable water supply caused by backsiphonage or backpressure, protecting the clean water system in non-health hazard applications.

What material is the body of this backflow preventer made from?

The body is constructed from Lead Free* cast copper silicon alloy, ensuring compliance with reduced lead content requirements for potable water systems.

What type of connections does the Febco LF850 use and what size are they?

This assembly features 1/2" Female NPT (National Pipe Taper) inlet and outlet connections. It is designed to connect to pipes with corresponding 1/2" Male NPT threads.

What is the maximum operating pressure and temperature range for this device?

The Febco LF850 can withstand a maximum working pressure of 175 psi (12.1 bar). It operates effectively within a temperature range of 32°F to 140°F (0°C to 60°C).

Is the freeze sensor included with the Febco LF850 assembly?

No, a freeze sensor connection kit is available separately. It is designed to activate a monitoring system for low and freezing temperatures but does not prevent freezing itself, requiring user action.