A major benefit of a high flow flashback arrestor is a reduced pressure drop over the arrestor. All flashback arrestors, regardless of brand or model, produce some pressure drop. The larger surface area of a high flow arrestor greatly reduces the pressure drop experience.
Below is an example of the reduced pressure drop between a standard torch mount flashback arrestor and a high flow version.
The same heating torch with the same performance protected by different safety devices (see picture above).
Flashback arrestor Model GG Flashback arrestor Model DG91UA
Inlet pressure 75 PSIG Inlet pressure 61 PSIG
Outlet pressure 58 PSIG Outlet pressure 58 PSIG
A pressure drop of 17 PSIG is visible Only a pressure drop of 3 PSIG is visible