4 DERINGER 30 GPM

Item Number: D-4030-GPM
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$3,416.17
Limited Stock (6)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Deringer
  • Size: 4 inch
  • Weight: 56.0 lb
  • Housing Material: 304 Stainless Steel
  • Maximum Working Pressure: 175 psi
  • Features: Integral Shutoff Valves
  • Check Mechanism: Patented Dual-action™
  • Bypass Meter: GPM
  • Certifications: AWWA C510-07, NSF/ANSI/CAN 61, UL, FM, ASSE 1048
  • Lead Free: Wetted surface < 0.25% lead

Description

The AMES Deringer™ 30 Double Check Detector Assembly is a 4-inch backflow preventer designed to safeguard potable water systems from non-health hazard pollutants due to backpressure or backsiphonage. Primarily used on fire sprinkler systems to monitor unauthorized water usage, it features a durable 304 stainless steel housing and integral butterfly shutoff valves for a compact design. Its patented Dual-action™ checks ensure high performance across various flow rates. Approved for both horizontal and vertical installation, this Lead Free* device includes a GPM meter and prewired supervisory switches. Maximum operating pressure is 175 psi. Item number D-4030-GPM.

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Connections

This AMES Deringer™ 30 backflow preventer offers versatile connection options. The main line can be connected using IPS grooved ends, compliant with AWWA C606 for steel pipe installations. Alternatively, flange adapters that meet ANSI B16.1 Class 125 standards are available for connection. The bypass assembly includes a GPM meter and test cocks for monitoring.

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Additional Details

The AMES Deringer™ 30 Double Check Detector Assembly DCDA-II is designed to prevent non-health hazard pollutants from entering a potable water supply system. This 4 inch backflow preventer protects against backpressure and backsiphonage, making it primarily suited for fire sprinkler systems where monitoring of unauthorized water usage is required.

Features

  • Integral shutoff valves for indoor or outdoor application, contributing to a shorter lay length.
  • Constructed with a 100% stainless steel housing for durability.
  • Equipped with tamper-resistant test cocks.
  • Patented Dual-action™ check modules provide poppet action at low flow and swing action at high flow for optimal performance.
  • Features Lead Free* Bronze bypass components.
  • Includes a GPM meter for monitoring water use.
  • Utilizes DCDA-II single check bypass.
  • Designed with silicone elastomer check discs.
  • Includes prewired supervisory switches for enhanced security.
  • Can be installed with flange adapters or with IPS grooved ends.

Installation & Service

  • Approved for both horizontal and vertical applications.
  • Designed for continuous pressure service.
  • The assembly is serviceable without requiring special tools.

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Specifications

General

  • Product Type: Double Check Detector Assembly (DCDA-II)
  • Size: 4 inch
  • Brand: AMES Deringer™ 30
  • Housing Material: 304 Stainless Steel
  • Valve Cover Material: 304 Stainless Steel
  • Bypass Components: Lead Free Bronze
  • Check Discs: Silicone (NSF)
  • Check Seats: Noryl® Polymer (NSF)
  • O-rings: Buna-N (NSF)
  • Bypass Internals: ABS Polymer (NSF)

Performance

  • Maximum Working Pressure: 175 psi (12 bar)
  • Minimum Working Pressure: 10 psi
  • Temperature Range: 33°F - 140°F

Connections

  • End Connections: IPS Groove, Flange Adapters (ANSI B16.1 Class 125)
  • Bypass Meter Type: GPM

Certificates & Approvals

  • AWWA C510-07 Compliant
  • NSF/ANSI/CAN 61
  • UL Certified Health Effects
  • UL Certified to NSF/ANSI/CAN 372
  • LEAD FREE (wetted surface < 0.25% lead)
  • FM APPROVED
  • ASSE 1048
  • USC APPROVED

FAQs

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

The primary purpose of this 4-inch Double Check Detector Assembly is to prevent non-health hazard pollutants from entering a potable water supply system due to backpressure or backsiphonage. It is specifically designed for fire sprinkler systems requiring monitoring of unauthorized water usage.

What is the maximum working pressure for this backflow preventer?

The maximum working pressure for the AMES Deringer™ 30 DCDA-II is 175 psi (12 bar). The recommended operating temperature range is 33°F to 140°F.

What type of meter is included with the bypass assembly?

This Deringer™ 30 DCDA-II comes with a GPM (gallons per minute) meter within its bypass assembly, which is used to monitor water usage.

What materials are used for the main housing?

The main valve housing and valve cover of the AMES Deringer™ 30 DCDA-II are constructed from 304 Stainless Steel, providing excellent durability and corrosion resistance.

Can this backflow preventer be installed in any orientation?

Yes, the AMES Deringer™ 30 Double Check Detector Assembly is approved for installation in both horizontal and vertical orientations, providing flexibility for various plumbing configurations.

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