GAS EQUIPMENT : GAS WELDING & CUTTING : SAFETY EQUIPMENT

Saffire 36ec Flashback Arrestors

Flashback Arrestors are essential safety devices which provide the maximum protection for the operator and his equipment in the event of a flashback.

A flashback can be caused by a variety of conditions such as sustained backfire, incorrect hose purging or simply the wrong gas pressure. Most are attributable to operator errors.

When a flashback occurs the flame front and pressure wave retreat into the blowpipe and hose at a very high speed. This can cause detonation within the system. It is essential that the regulator and more particularly the cylinder are protected from the effect of a flashback.

Saffire Flashback Arrestors are multi functional devices offering full protection to the user.

  • Improved and uprate on Saffire 36+
  • Pressure sensitive cut-off
  • Suitable for Acetylene, Propane,
    Oxygen and Hydrogen
  • HSE and BAM approved
  • Quality managed to ISO 9000 requirement
 
In the event of a flashback the flame front strikes the retaining plate thereby dissipating much of the flashback force. The flame front passes into the absorption chamber and is quenched as it enters the flame arresting element. The following pressure wave passes through the filter and activates the flow cut off valve by its pressure. This causes the reset button to move downwards. This equipment is thus rendered safe with the flashback flame extinguished and the incoming gas supply stopped.
 
Part No.		 Description Gas Pressure
1282274 Model 36ec FBA - Fuel Gas Acetylene - 1.5 bar, Propane & Hydrogen - 5 bar
1282275 Model 36ec FBA - Oxygen Oxygen - 10 bar


Saffire XL5 Flashback Arrestors

The latest in the range of Saffire XL cylindrical flashback arrestors, the XL5 is an advanced design giving a high flow rate. Internally the XL5 is equipped with a large cylindrical flame arresting element, an automatic reset, non-return valve and a heat sensitive automatic cut-off.

  • Automatic reset non-return valve
  • Heat sensitive cut-off valve
  • High flow flame arresting element
  • Inlet filter for internal mechanism

Flashback arrestors should always be used in conjunction with hose check valves as these help to prevent the backflow which leads to flashback.

Gas Service

 Part No.
Acetylene 1256308
Propane 1256308
Oxygen 1256309

Saffire Hose Check Valves

A vital piece of equipment protecting against backfeed. The Murex hose check valve is a self-aligning non return valve which Is spring loaded and detects reverse gas flow; it automatically closes, therefore preventing the conditions which lead to flashback.

Product Type Gas Service Part No
1/4in BSP x 6.3mm RH Oxygen 1261905
1/4in BSP x 6.3mm LH Acetylene 1261904
3/8in BSP x 6.3mm RH Oxygen 1261907
3/8in BSP x 6.3mm LH Acetylene 1261906
3/8in BSP x 8.0mm RH Oxygen 1261909
3/8in BSP x 8.0mm LH Acetylene 1261908
3/8in BSP x 10.0mm RH Oxygen 1261911
3/8in BSP x 10.0mm LH Acetylene 1261910