8 DERINGER 30 GPM

Item Number: D-8030-GPM
1 1
$9,069.53
On Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2-5 Days When Back In Stock

Brand - Deringer
  • Size: 8 inch
  • Weight: 159.0 lb
  • Housing Material: 304 Stainless Steel
  • Working Pressure: 10 – 175 psi
  • Temperature Range: 33°F – 140°F
  • End Connections: IPS Grooved
  • Bypass Meter: GPM
  • Approvals: AWWA C510-07, NSF/ANSI/CAN 61/372, UL, ASSE 1048
  • Lead Free Construction

Description

The 8 inch AMES Deringer™ 30 Double Check Detector Assembly (DCDA-II) is a backflow prevention device essential for protecting potable water supplies from non-health hazard pollutants. Constructed with a durable 304 stainless steel housing and featuring integral shutoff valves, this assembly is ideal for fire sprinkler systems requiring monitoring of unauthorized water use via its GPM bypass meter. It operates within a 10-175 psi working pressure range and is approved by AWWA, NSF/ANSI/CAN, UL, and ASSE 1048, ensuring reliable performance and compliance. Its dual-action check modules provide high performance across various flow rates.

Help Me Connect

This 8 inch Deringer™ 30 DCDA-II is designed for installation with IPS grooved ends for steel pipe, compliant with AWWA C606. It can also accommodate flange adapters that meet ANSI B16.1 Class 125 standards for connection to flanged piping systems.

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Additional Details

The 8 inch Deringer™ 30 Double Check Detector Assembly (DCDA-II) by AMES FIRE & WATERWORKS is designed to prevent non-health hazard pollutants from entering a potable water supply system due to backpressure and/or backsiphonage conditions. This assembly is primarily used on fire sprinkler systems where monitoring of unauthorized water usage is required.

Features

  • Integral shutoff valves for indoor or outdoor application, offering a shorter lay length and lightweight construction
  • 100% stainless steel housing ensures durability
  • Tamper-resistant test cocks for security
  • Patented Dual-action™ check modules provide poppet action at low flow and swing action at high flow for optimal performance
  • Lead Free Bronze bypass components
  • Bypass meter registers in GPM (gallons per minute)
  • DCDA-II single check bypass
  • Silicone elastomer check discs
  • Prewired supervisory switches for monitoring
  • Available with flange adapters
  • Equipped with IPS grooved ends

Specifications

General

  • Product Type: Double Check Detector Assembly (DCDA-II)
  • Size: 8 inch
  • Brand: AMES FIRE & WATERWORKS
  • Model: Deringer™ 30

Materials

  • Valve Housing: 304 Stainless Steel
  • Valve Cover: 304 Stainless Steel
  • SOV Disks: EPDM/304SS
  • SOV Shafts: 304 Stainless Steel
  • Bypass Spring: 302 Stainless Steel
  • SOV Bearings: PTFE Fluoropolymer/Bronze
  • Non-wetted Bolts: Grade 8 Zinc Plated
  • Check Disks: Silicone (NSF)
  • Wetted Fasteners: 18-8 Stainless Steel
  • Bypass Components: Lead Free Bronze
  • Check Springs: 17-7 Stainless Steel
  • Check Pins: 17-7/18-8 Stainless Steel
  • Check Seats: Noryl® Polymer (NSF)
  • O-rings: Buna-N (NSF)
  • Bypass Internals: ABS Polymer (NSF)

Performance

  • Working Pressure: 10 – 175 psi
  • Temperature Range: 33°F – 140°F

Connections

  • End Connections: IPS Grooved Ends

Certificates & Approvals

  • AWWA: C510-07 Compliant
  • NSF/ANSI/CAN: 61, 372 (Certified Health Effects)
  • UL Certified: Health Effects
  • ASSE: 1048
  • USC Approved
  • Lead Free: Wetted surface contains less than 0.25% of lead by weight

FAQs

What is the primary purpose of the 8 inch Deringer™ 30 DCDA-II?

Its primary purpose is to prevent non-health hazard pollutants from contaminating the potable water supply due to backpressure or backsiphonage, particularly in fire sprinkler systems where water usage monitoring is required.

What are the main materials used in the construction of this backflow preventer?

The main housing is constructed from 304 stainless steel, with check discs made of silicone, and bypass components made of Lead Free Bronze. Various internal components are also 304 stainless steel, EPDM, Noryl, and Buna-N.

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

The 8 inch Deringer™ 30 DCDA-II has a maximum working pressure of 175 psi and operates reliably within a temperature range of 33°F to 140°F.

How does the "Dual-action™ check module" feature work?

The Dual-action™ check modules are designed for optimal performance across different flow rates. They provide poppet action during low flow conditions and switch to swing action during high flow conditions.

What type of connections does this assembly support?

This assembly comes standard with IPS grooved ends for connection to steel pipe. It is also compatible with flange adapters that meet ANSI B16.1 Class 125 standards.

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