1 1/2 LF767FR PVB

Item Number: 0683031
1 1
$1,756.49
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Lead Free* cast silicon copper alloy body
  • Weight: 13.4 lb
  • Freeze resistant design with built-in relief valve
  • Maximum Operating Pressure: 150 psi
  • Temperature Range: 33°F to 140°F
  • 1 1/2 inch Female NPT inlet and outlet
  • Equipped with quarter-turn lever handle shutoffs
  • Internal parts serviceable from the top
  • ASSE 1020 and NSF/ANSI 372 approved

Description

This 1 1/2 inch Lead Free Freeze-Resistant Pressure Vacuum Breaker (PVB) prevents backsiphonage of contaminated water into potable water supplies. Designed for continuous pressure applications, it features a unique relief valve that protects internal components and the lead-free silicon copper alloy body from freezing due to ice formation. It includes 150 psi maximum working pressure, 15 psi minimum working pressure, quarter-turn lever handle shutoffs, and test cocks for winterization. Ideal for irrigation and industrial process water systems where freezing conditions can occur. ASSE 1020 and NSF/ANSI 372 approved. Item number 0683031.

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Connections

  • This 1 1/2 inch valve features female NPT inlet and outlet connections.
  • The inlet should be connected to a 1 1/2 inch male NPT thread.
  • The outlet should be connected to a 1 1/2 inch male NPT thread.

Installation Notes

  • Install this valve in a continuous pressure potable water supply system.
  • Position the valve 12 inches (305mm) above the highest point of the downstream piping.
  • The supply should be connected to the bottom of the valve, and the valve must be installed in a vertical position.
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Additional Details

This 1 1/2 inch lead free freeze resistant pressure vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It is ideal in continuous pressure health hazard applications where exposure to sudden freezing conditions such as on irrigation systems and industrial process water systems can occur.

Features

  • Unique built-in relief valve relieves pressure caused by ice formation
  • Replaceable plastic seat
  • Easy maintenance of internal parts serviceable from the top of the unit
  • O-ring bonnet seal for less possibility of fouling
  • Silicone seat disc for durability
  • Test cocks positioned for easy testing and winterization
  • Compact space saving design
  • Standardly equipped with quarter-turn lever handle shutoffs
  • No special tools required for servicing
  • Lead Free* cast silicon copper alloy body construction
  • Silicone rubber check valve disc
  • Plastic check valve seat
  • Stainless steel springs
  • Bonnet with silicone rubber O-ring seal
  • Lightweight plastic disc float

Specifications

  • Body Material: Lead Free* Cast Silicon Copper Alloy
  • Check Valve Disc: Silicone Rubber
  • Check Valve Seat: Noryl Plastic
  • Bonnet: Celcon®
  • Vent Disc: Silicone Rubber
  • Disc Holder Float: Polypropylene
  • Springs: Stainless Steel
  • Valve Size: 1 1/2 inch
  • Connections: Female NPT Inlet and Outlet
  • Shutoffs: Quarter-Turn Lever Handles
  • Maximum Working Pressure: 150 psi (10.3 bar)
  • Minimum Working Pressure: 15 psi (103 kPa)
  • Temperature Range: 33°F to 140°F (0.5°C to 60°C)

Certificates & Approvals

  • ASSE 1020
  • CSA B64.1.2
  • UPC
  • NSF Certified to NSF/ANSI 372
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California, Manual Section 10

FAQs

What is the primary function of the FEBCO LF767FR PVB?

The primary function is to prevent contaminated water from flowing back into the potable water supply due to backsiphonage, particularly in continuous pressure systems.

Is this backflow preventer suitable for areas prone to freezing?

Yes, the LF767FR is freeze-resistant. It features a unique built-in relief valve that relieves pressure caused by ice formation to protect the internal components and the valve body from freezing damage.

What are the connection types and size for this model?

This specific model, the 0683031, has 1 1/2 inch female NPT inlet and outlet connections.

What is the maximum operating pressure for this device?

The maximum operating pressure for the LF767FR is 150 psi (10.3 bar).

Does this product comply with lead-free standards?

Yes, the LF767FR is constructed with Lead Free* materials, specifically a cast silicon copper alloy body, to comply with lead-free installation requirements.