2" (Deringer 30) Kit

 
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The 2" (Deringer 30) Kit is a double check detector assembly that prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur.

2" (Deringer 30) Kit Includes:

  • (1) 2½" Deringer 30
  • (2) 2½" Groove Couplings
  • (2) 2" NPT x 2½" Groove Adapter
End connections are union type stainless steel 2" female NPT threads for ease of installation. Entire valve housing is constructed of stainless steel (including shut off valves) for industry leading corrosion resistance.
ALL APPROVALS APPLY TO 2½" DERINGER 30

Approvals
Approved in the Horizontal & Vertical Up Position.

MSRP: $1,439.00
Pro Price: $1,199.00


Product Code: 2030


Choose Your Bypass Options:
GALLONS
CUBIC FEET


Qty:
Specifications Technology Downloads
 

The Deringer 30 Double Check Detector Assembly prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur. Used primarily on fire sprinkler systems when monitoring of unauthorized water use is required.

Maximum Working Pressure:
175psi (12.1 bar)
Temperature Range:
33° - 140°F (1° - 60°C)
End Connections
- IPS Groove for Steel Pipe:
AWWA C606
- Flange Adapters:
ANSI B16.1 Class 125
Lead Free:
0.25% Maximum by Weight

Micro type-II Bypass TM Assembly

The type-II bypass assembly is a new technology to the backflow industry and is used on Backflow Direct's Deringer 30 (DCDA-II).

As more manufacturers begin to utilize this technology it is only a matter of time before it’s widely used and is more commonly seen than the old type-I bypass assembly.

We created this video to provide a clear explanation on how the type-II bypass provides the EXACT same level of protection as a type-I bypass as well as some of the similarities and differences between the two.

Flow Performance

Measures & Materials

Valve Housing:
304 Stainless Steel
Valve Cover:
304 Stainless Steel
SOV Disks:
EPDM/304SS:
SOV Shafts:
304 Stainless Steel
SOV Bearings:
Teflon/Bronze
Non Wetted Bolts:
Grade 8 Zinc Plated
Check Disks:
Silicone
Wetted Fasteners:
18-8 Stainless Steel
Check Springs:
17-7 Stainless Steel
Check Pins:
17-7/18-8 Stainless Steel
Check Seats:
Noryl Polymer
O-Rings:
Buna-N

Engineering & Specifications

The Deringer 30 Double Check Detector Assembly (DCDA-II) shall utilize two independent Dual Action Check modules and two integral resiliently seated shut-off valves all of which shall be contained within a single rigid valve housing constructed entirely of 304 stainless steel. Both integral shutoff valves shall include pre-wired supervisory tamper switches contained within a weatherproof actuator housing approved for both indoor and outdoor use. Dual Action Check modules shall operate as a “poppet style” check under low flow conditions, operate as a “swing style” check under high flow conditions and utilize replaceable silicone elastomer sealing discs. Assembly test cocks shall be handle-less and operate via a tamper resistant actuator. Assembly shall have a single full access service port and cover with an “inline” replaceable elastomer seal. All bypass assembly components shall be lead free and include a meter registering either gallons or cubic feet, a single check valve and required test cocks. Assembly shall be serviceable without special tools and approved for both horizontal and vertical applications.


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