4 DERINGER 30GX GPM

Item Number: D-4030GX-GPM
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$4,077.17
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Deringer
  • Size: 4 inch
  • Assembly Type: Double Check Detector
  • Maximum Working Pressure: 175 PSI
  • Body Material: 304 Stainless Steel
  • Bypass Meter: GPM (Gallons Per Minute)
  • End Connections: Flanged ANSI B16.1 Class 125
  • Lead Free: Yes
  • Installation: Horizontal or Vertical

Description

The 4-inch Ames Deringer 30GX Double Check Detector Backflow Preventer Assembly is designed for non-health hazard applications, preventing pollutants from entering potable water systems due to backpressure or backsiphonage. Ideal for fire sprinkler systems requiring monitoring of unauthorized water usage, it includes a GPM bypass meter. Features a durable 304 stainless steel body, oversized Dual-Action check modules for low and high flow, and inline serviceable OS&Y gate valves. Approved for both horizontal and vertical installations, this Lead Free assembly operates up to 175 PSI and is certified by AWWA, NSF/ANSI, UL, and FM.

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End Connections

  • The Deringer™ 30GX features flanged end connections designed to meet ANSI B16.1 Class 125 standards, ensuring compatibility with corresponding flanged piping systems.
  • It also includes flexible groove couplings UL/FM between the body and gate valves, facilitating installation and maintenance with grooved pipes.
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Additional Details

The 4 inch Ames Deringer™ 30GX Double Check Detector Valve Assembly (DCDA-II) 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 used primarily on fire sprinkler systems where monitoring of unauthorized water usage is required, featuring a GPM meter for this purpose.

Key Features

  • Extra large body and checks for lower head loss and high performance.
  • Inline serviceable OS&Y gate valves with pre-machined grooves for tamper switches.
  • Dual-Action™ check modules provide both poppet action for low flow and swing action for high flow.
  • Lead Free* bronze bypass components with a GPM bypass meter for monitoring.
  • Tamper-resistant test cocks with a handle-less design.
  • Approved for horizontal and vertical installations.
  • Single full access service port with an inline replaceable elastomer cover seal.

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight, meeting Lead Free requirements.

Specifications

General

  • Model: Deringer™ 30GX
  • Assembly Type: Double Check Detector Assembly (DCDA-II)
  • Nominal Size: 4 inch
  • Primary Use: Non-health hazard backflow prevention
  • Bypass Meter: GPM Meter (Gallons Per Minute)
  • Installation Orientation: Horizontal or Vertical
  • Serviceability: Serviceable without special tools

Performance

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

Connections

  • End Connections: Flanged
  • Flange Standard: ANSI B16.1 Class 125
  • Coupling: Flexible groove coupling UL/FM (between body and gate valves)

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)

Dimensions & Weight (4 Inch)

  • Height (Ht): 22.5 inches (572 mm)
  • Base Height (Hb): 4.5 inches (114 mm)
  • Length (L): 33.9 inches (861 mm)
  • Width (W): 12.6 inches (320 mm)
  • Weight: 167 lbs (76 kg)

Certificates & Approvals

  • AWWA C510-07 Compliant
  • NSF/ANSI 372
  • UL CERTIFIED
  • LEAD FREE
  • FM APPROVED
  • ASSE 1048
  • USC APPROVED

FAQs

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

The primary purpose is to prevent non-health hazard pollutants from entering a potable water supply system due to backpressure and/or backsiphonage conditions. It is commonly used in fire sprinkler systems to monitor unauthorized water usage.

What are the key features of the Dual-Action check modules?

The Dual-Action check modules provide both poppet style action for efficient performance under low flow conditions and swing style action for optimal performance under high flow conditions. They feature replaceable silicone elastomer sealing discs.

What type of meter is included with the bypass assembly?

The bypass assembly includes a GPM (Gallons Per Minute) meter, which is used to monitor unauthorized water usage, particularly in fire sprinkler systems.

What is the maximum operating pressure and temperature range for this backflow preventer?

This backflow preventer has a maximum operating pressure of 175 PSI and can operate within a temperature range of 33°F to 140°F.

What certifications and approvals does the Deringer 30GX have?

The Deringer 30GX is AWWA C510-07 Compliant, NSF/ANSI 372 listed, UL Certified, FM Approved, ASSE 1048, and USC Approved, ensuring it meets industry standards for safety and performance.

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