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One Harris dry flashback arrestor is recommended for each oxygen and fuel gas regulator. The main cause of dangerous explosions is mixed gas igniting in the regulator. The Harris dry flashback arrestors provide maximum protection with:
- Large capacity non return valve to block slow and sudden gas reverse flow
- Sintered metal filter to prevent flashback
- Every flashback arrestor is factory tested against flashback
Flashback arrestors for regulators:
 
188-R 188-TL
| Model |
Gases |
Max. flow LT/H |
Max inlet pressure bar |
Inlet/Outlet threads |
| 188-R |
Oxygen |
100,000 |
20(2000) |
9/16"x18 UNF-RH/9/16"x18 UNF-RH |
| 188-L |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-2R |
Oxygen |
180,000 |
20(2000) |
9/16"x18 UNF-RH/9/16"x18 UNF-RH |
| 188-2L |
Fuel gas |
60,000 |
A:1.5 bar P:6 bar H:20 |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-TR |
Oxygen |
100,000 |
20(2000) |
9/16"x18 UNF-RH/9/16"x18 UNF-RH |
| 188-TL |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-2TR |
Oxygen |
180,000 |
20(2000) |
9/16"x18 UNF-RH/9/16"x18 UNF-RH |
| 188-2TL |
Fuel gas |
60,000 |
A:1.5 bar P:6 bar H:20 |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-RGB |
Oxygen |
100,000 |
20(2000) |
3/8¡°¡± - RH / 3/8¡± - RH |
| 188-LGB |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
3/8¡± - LH /3/8¡± - LH |
| 188-2RGB |
Oxygen |
180,000 |
20(2000) |
3/8¡°¡± - RH / 3/8¡± - RH |
| 188-2LGB |
Fuel gas |
60,000 |
A:1.5 bar P:6 bar H:20 |
3/8¡± - LH /3/8¡± - LH |
| 188-TRGB |
Oxygen |
100,000 |
20(2000) |
3/8¡°¡± - RH / 3/8¡± - RH |
| 188TLGB |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
3/8¡± - LH /3/8¡± - LH |
| 188-2TRGB |
Oxygen |
180,000 |
20(2000) |
3/8¡°¡± - RH / 3/8¡± - RH |
| 188-2TLGB |
Fuel gas |
60,000 |
A:1.5 bar P:6 bar H:20 |
3/8¡± - LH /3/8¡± - LH |
Flashback arrestors for Cutting Torches and Handles:
 
188-1R 188-GGR
| Model |
Gas |
Max. flow LT/H |
Max inlet pressure bar |
Inlet/Outlet threads |
| 188-1R8 |
Oxygen |
65,000 |
20(2000) |
¨ª Hose 8mm / 9/16"x18 UNF-RH |
| 188-1L8 |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 8mm / 9/16"x18 UNF-LH |
| 188-1R6 |
Oxygen |
65,000 |
20(2000) |
¨ª Hose 6mm / 9/16"x18 UNF-RH |
| 188-1R6 |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 6mm / 9/16"x18 UNF-LH |
| 188-1RGB8 |
Oxygen |
65,000 |
20(2000) |
¨ª Hose 8mm / 3/8¡± - RH |
| 188-1LGB8 |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 8mm /3/8¡± - LH |
| 188-1RGB6 |
Oxygen |
65,000 |
20(2000) |
¨ª Hose 6mm / 3/8¡± - RH |
| 188-1LGB6 |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 6mm / 3/8¡± - RH |
| 188-GGR |
Oxygen |
65,000 |
20(2000) |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-GGR |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
9/16"x18 UNF-LH/9/16"x18 UNF-LH |
| 188-GGGBR |
Oxygen |
65,000 |
20(2000) |
¨ª Hose 6mm / 3/8¡± - RH |
| 188-GGGBL |
Fuel gas |
20,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 6mm / 3/8¡± - RH |
Flashback arrestors hose to hose:
188-TTR6
| Model |
Gas |
Max. flow LT/H |
Max inlet pressure bar |
Inlet/Outlet threads |
| 188-TTL8 |
Oxygen |
100,000 |
20(2000) |
¨ª Hose 8mm. |
| 188-TTR8 |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 8mm |
| 188-TTL 6 |
Oxygen |
100,000 |
20(2000) |
¨ª Hose 6mm |
| 188-TTL 6 |
Fuel gas |
30,000 |
A:1.5 bar P:6 bar H:20 |
¨ª Hose 6mm |
Harris Model 88-5 FBR Flash-Guard ¢ç
Regulator & Torch Flashback Arrestors |
- Prevents reverse flow of gases with built-in check valves
- Extinguishes flashback fire with stainless steel sintered element
- 9/16¡± - 18 outlets
- Flow Capacity - Models 88-5FBT (R&L) and 88-5FBR (R&L) arrestors should not be used with tip sizes larger than those noted below:
- Hand Cutting Tips - #5 (except for NFF TIPS - #4
- Machine Cutting Tips - #5 1/2
- Acetylene Heating Tips - #4
- Alternate Fuel Heating Tips - #2
- Cleaning Heads - #2 RBP (no limitation with RBA)
- U.L. Listed
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Torch Type
Model 88-5FBT (R&L)
(P/N 4301650)
Sold in pairs only
Regulator Type
Model 88-5FBR (R&L)
(P/N 4301651)
Sold in pairs only
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Harris Model 88-5 FBR Flash-Guard ¢ç
High Flow Regulator Flashback Arrestors |
- Same features as Model 88-5FBR (R&L) above plus a thermal shut-off which positively shuts off the gas in case of hose fire, burn back or repeated flashbacks.
- High flow capacity - can be used with alL Harris tips
- U.L. Listed
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High Flow Regulator Type
Model 88-5FBHFR (R&L)
(P/N 4301652) - Oxygen
(P/N 4301655) - Fuel
Sold separately
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Flashback Arrestors
Stainless steel flashback arrestors are designed for oxygen, hydrogen and other flammable or fuel gases. Standard with 1/4¡± NPT female inlet and 1/4¡± NPT male outlet connections make it easy to adapt in various lab applications. UL listed. |
| PART NUMBER |
DESCRIPTION |
WORKING PRESSURE |
ELASTOMERS |
4301637
4301638 |
Hydrogen
LPG/Methane
Acetylene
Oxygen |
50 PSIG
50 PSIG
15 PSIG
143 PSIG |
Neoprene
Viton |
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