• Bulgin® Flashback Arrestor Fuel Gas Standard Flow ( DGNDK-D4-F) Q/A Coupler Reg End - 5/8"-18 UNF LH — 3001-9997
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Bulgin

Bulgin DGNDK-D4 Standard Flow Flashback Arrestors — Regulator End Quick-Action

Bulgin DGNDK-D4 Standard Flow Flashback Arrestors — Regulator End Quick-Action

$114.04 AUD
$114.04 AUD
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3001-9997

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Returns & exchanges90 days for eligible unopened items

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Full returns policy & exclusions

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Product information

Details

Bulgin DGNDK-D4 Standard Flow Flashback Arrestors — Regulator End Quick-Action are available in the gas-specific configurations below. Select the correct fuel-gas or oxygen model and matching connection for the stated installation position.

Every flashback arrestor is 100% function tested prior to leaving the factory. All assembled devices are tested with a flashback test, a leak test and a gas non-return valve test. This rigorous quality assurance process provides complete confidence in product performance, safety, and compliance.

NV – Gas Non-Return Valve

Prevents reverse gas flow and the formation of dangerous mixed-gas conditions within the system.

FA – Flame Arrestor

Extinguishes flashbacks before they can propagate upstream, protecting regulators, hoses, and gas supply equipment.

TV – Temperature Sensitive Shut-Off Valve

Automatically interrupts gas flow if excessive temperatures occur, providing additional protection during flashback incidents.

SV – Shut-off valve

Provides safe interruption of gas flow by automatic gas cut-off when disconnecting.

DF – Dust Filter

Protects critical internal safety components from contamination, maintaining long-term performance and reliability.

Welding

Suitable for material thicknesses up to 30 mm.

Cutting

Suitable for cutting applications up to 200 mm.

Heating

Suitable for heating applications up to 100 mm.

Features and applications

  • Prevents dangerous reverse gas flow
  • Stops flashbacks before they can travel upstream
  • Provides automatic thermal shut-off protection
  • Protects internal safety components from contamination
  • 100% factory function tested and flame tested
  • Suitable for demanding industrial environments
  • Complies with EN ISO 5175-1 and AS 4603

Shared specifications

Specification Details
Installation Position Reg End
Outlet Connection Quick Action Coupler and D4 Pin
Operating Temperature -20°C to +60°C
Cracking Pressure 50–70 mbar
Construction Material Brass body with stainless steel spring components
Standards AS 4603, EN ISO 5175-1,
Country of Manufacture Germany
Testing 100% Function Tested & Flame Tested

Available variants

SKU Gas service Model Gas Service Inlet Connection Maximum Working Pressure
3001-9997 Fuel gas — LH DGNDK-D4-F Fuel 5/8"-18 UNF LH Female Acetylene 150 KPa (1.5 bar) Hydrogen 350 KPa (3.5 bar) LPG, Methane 500 KPa (5.0 bar)
3001-9998 Oxygen — RH DGNDK-D4-O Oxygen 5/8"-18 UNF RH Female 2000 kPa (20 bar)