Approved for Fire Protection, Waterworks, Plumbing, and Irrigation
Connections: Flanged end ANSI B16.1 Class 125
Description
The 8 inch Deringer 20G Double Check Valve Assembly is a stainless steel backflow preventer designed to protect potable water systems from non-health hazard pollutants due to backpressure and backsiphonage. Featuring inline serviceable OS&Y gate valves, patented Dual-action check modules for optimal performance across all flow rates, and tamper-resistant test cocks, it offers reliable and durable protection. Approved for fire protection, waterworks, plumbing, and irrigation, it operates up to 175 psi and is lead-free.
Help Me Connect
Connections
This 8 inch Deringer 20G double check valve assembly features flanged end ANSI B16.1 Class 125 connections for secure installation into your piping system. It also utilizes a flexible groove coupling UL/FM between the body and gate valves for ease of assembly and maintenance.
The 8 inch Deringer™ 20G Double Check Valve Assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions.
This stainless steel backflow preventer is approved for use in Fire Protection, Waterworks, Plumbing, and Irrigation Applications.
Features
Inline serviceable OS&Y gate valves for easy maintenance.
Lead Content: Wetted surface contains less than 0.25% lead by weight
Pressure - Temperature
Temperature Range: 33°F - 140°F
Working Pressure: 10 - 175psi
Certificates & Approvals
AWWA C510-07 Compliant
NSF/ANSI 372 Certified
UL Classified
FM Approved
ASSE 1015
USC Approved
FAQs
What is the primary function of the Deringer 20G Double Check Valve Assembly?
Its primary function is to prevent non-health hazard pollutants from entering the potable water supply system, protecting against both backpressure and backsiphonage conditions.
What applications is this 8 inch backflow preventer approved for?
This assembly is approved for use in Fire Protection, Waterworks, Plumbing, and Irrigation applications, ensuring versatility across various systems.
What is the maximum working pressure and temperature range for this device?
The Deringer 20G has a maximum working pressure of 175 psi and operates within a temperature range of 33°F to 140°F.
What type of connections does this 8 inch assembly use?
It features flanged end ANSI B16.1 Class 125 connections and flexible groove couplings UL/FM between the body and gate valves.
What does "Dual-action™ check modules" mean?
The Dual-action check modules are patented components that provide poppet action for effective low-flow performance and swing action for high-flow conditions, ensuring consistent protection.
