• Bulgin® Flashback Arrestor Fuel Gas High Flow (DG91N-F) Reg End - 5/8"-18 UNF LH — 3001-9991
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Bulgin

Bulgin DG91N High Flow Flashback Arrestors — Regulator End

Bulgin DG91N High Flow Flashback Arrestors — Regulator End

$119.68 AUD
$119.68 AUD
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Details

Bulgin® Flashback Arrestor Fuel Gas High Flow (DG91N-F) Reg End - 5/8"-18 UNF LH — 3001-9991

BULGIN High Flow Reg End Flashback Arrestors

The Bulgin DG91N-F High Flow Flashback Arrestor is a German-engineered and manufactured safety device designed to deliver the highest levels of safety, performance, and reliability in oxy-fuel welding, cutting, and heating applications.

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.

Flashback arrestors are one of the most critical safety devices in any oxy-fuel system. The Bulgin Flashback Arrestor range combines proven German engineering, precision manufacturing, and comprehensive testing to deliver dependable protection in demanding industrial environments.

Key Benefits

  • 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

Product Specifications

Parameter

Specification

Model

DG91N-F

Gas Service

Fuel

Installation Position

Reg End

Inlet Connection

5/8"-18 UNF LH Female

Outlet Connection

5/8"-18 UNF LH Male

Maximum Working Pressure

Acetylene        150 KPa (1.5 bar)

Hydrogen        400 KPa (4.0 bar)

LPG, Methane  500 KPa (5.0 bar)

Operating Temperature

-20°C to +60°C

Cracking Pressure

50 mbar

Construction Material

Brass body with stainless steel spring components

Standards

AS 4603, EN ISO 5175-1,

Testing

100% Function Tested & Flame Tested

Country of Manufacture

Germany

Integrated Safety Features

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.

DF – Dust Filter

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

 Application

The DG91N-F High Flow Flashback Arrestor is designed for use in oxy-fuel operations including:

Welding

Suitable for material thicknesses up to 30 mm.

Cutting

Suitable for cutting applications up to 700 mm.

Heating

Suitable for heating applications > 100 mm.