6 DERINGER 30GX GPM

Item Number: D-6030GX-GPM
1 1
$6,007.83
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Deringer
  • Size: 6 inch
  • Maximum Working Pressure: 175 psi
  • Lead Free* Construction
  • Body Material: 304 Stainless Steel
  • End Connections: Flanged ANSI B16.1 Class 125
  • Bypass Meter: GPM (Gallons Per Minute)
  • Dual-action Check Modules for Low/High Flow
  • Inline Serviceable OS&Y Gate Valves

Description

The 6 inch Ames Deringer 30GX Double Check Detector Assembly is engineered to prevent non-health hazard pollutants from entering potable water systems due to backpressure or backsiphonage. Ideal for fire sprinkler systems requiring monitoring of unauthorized water use, this assembly features a durable 304 stainless steel body, extra-large checks for low head loss, and inline serviceable OS&Y gate valves. Its patented Dual-Action check modules ensure high performance across all flow rates. Approved for fire protection and waterworks applications, it includes a GPM bypass meter and flanged ANSI B16.1 Class 125 end connections. This lead-free device operates at 10-175 psi.

Help Me Connect

System Compatibility

This 6 inch double check detector assembly is designed for installation on potable water supply systems. It is primarily used for fire sprinkler systems where monitoring of unauthorized water usage is required, offering protection against non-health hazard pollutants due to backpressure and backsiphonage.

Connections

  • The main assembly features flanged ends conforming to ANSI B16.1 Class 125 for connection to compatible flanged piping systems.
  • Flexible groove couplings, UL/FM approved, are used internally between the main body and the OS&Y gate valves for secure and serviceable connections.
View full details

Additional Details

The 6 inch Ames Deringer™ 30GX Double Check Detector Assembly (DCDA-II) is engineered to prevent non-health hazard pollutants from entering a potable water supply system due to backpressure and/or backsiphonage. This assembly is primarily used on fire sprinkler systems where monitoring of unauthorized water usage is required.

It features an extra-large body and checks for lower head loss, inline serviceable OS&Y gate valves, and a stainless steel body, ensuring high performance at both low and high flow rates under continuous pressure service. The Type II bypass system includes a GPM meter to monitor unauthorized water usage.

Features

  • Oversized checks for extreme performance and lower head loss
  • Inline serviceable OS&Y gate valves with tamper switch groove
  • Stainless steel housing
  • Tamper-resistant test cocks
  • Patented Dual-action™ check modules with poppet action for low flow and swing action for high flow
  • Lead Free* bronze bypass components with a GPM (Gallons Per Minute) bypass meter
  • Silicone elastomer check discs
  • AWWA C509/UL/FM resilient seated gate valves (OS&Y)
  • DCDA-II single check bypass
  • Flanged ends ANSI B16.1 Class 125
  • Flexible groove coupling UL/FM (between body and gate valves)

Specifications

  • Size: 6 inch
  • Working Pressure: 10 - 175 psi (12 bar)
  • Temperature Range: 33°F - 140°F

Connections

  • End Connections: Flanged ANSI B16.1 Class 125
  • Coupling: Flexible Groove (UL/FM approved, between body and gate valves)
  • Bypass Meter: GPM (Gallons Per Minute)

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/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)

Certificates & Approvals

  • AWWA C510-07 Compliant
  • NSF/ANSI 372
  • UL Certified
  • FM Approved
  • ASSE 1048
  • USC Approved
  • Lead Free*

FAQs

What is the primary purpose of the 6 inch Ames Deringer 30GX DCDA-II?

This assembly is designed to prevent non-health hazard pollutants from entering a potable water supply system due to backpressure and backsiphonage. It is commonly used in fire sprinkler systems to monitor unauthorized water usage.

What type of end connections does this backflow preventer use?

The main assembly features flanged ends that conform to ANSI B16.1 Class 125. Additionally, flexible groove couplings, which are UL/FM approved, connect the body to the gate valves.

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

The 6 inch Deringer 30GX can operate effectively with a working pressure ranging from 10 to 175 psi (12 bar). Its temperature range is between 33°F and 140°F.

What are "Dual-action check modules" and what are their benefits?

Dual-action check modules provide both poppet action for low flow conditions and swing action for high flow conditions. This patented design ensures extreme performance and lower head loss across various flow rates.

Is this backflow preventer considered lead-free?

Yes, this product is certified as Lead Free*. The wetted surface of this product that contacts consumable water contains less than 0.25% of lead by weight, meeting applicable standards.

Related Products

1 2