Should i remove the check valves that are already on my torch body to install these?

Yes. You don't need 2 check valves.

Should welding flashback arrestors be installed at the torch end or at the regulators?

Hot Max Model 24011 flashback arrestors are meant to connect to the torch end (between the hoses and the torch). The arrestors that are meant to go at the regulator end are Hot Max Model 24010. Many commercial businesses require them to be installed on both ends.

Has anyone using this and the regulator end arrestor experienced increased backfires, possibly due to pressure drop? How did you compensate for it?

If I adjust the regulators at flow (while I'm bleeding the lines) to suggested pressure, I don't get any popping/backfires due to low flowrate (I assume that's what your question means). I usually cut at about 5psi acetylene and 15psi oxygen.

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Hot Max 24011 Flashback Arrestor Set, Torch End

Hot Max 24011 Flashback Arrestor Set, Torch End

Product ID: 121364195

Details

Brand
Hot Max
Colour
Brass
Connector type
Threaded
Exterior finish
Brass
Global Trade Identification Number
Item dimensions L x W x H
15.2 x 11.4 x

🔧Standard 'B' fittings 9/16"-18 UNF

🛡️Dual internal check valves

🟡🔴Color-coded for oxygen & acetylene safety

Description

🔥 Safety Meets Precision – Never Compromise on Your Weld! 🛠️

BUILT TO LAST - Solid brass construction guarantees durability and long-term reliability under heavy use.
COLOR CODED CONFIDENCE - Distinct oxygen (right-hand) and acetylene (left-hand) threads with clear color coding eliminate connection errors.
SEAMLESS COMPATIBILITY - Standard 'B' fittings (9/16"-18 UNF) fit most twin hoses for effortless installation.
ESSENTIAL WELDING UPGRADE - Ideal for professional and hobby welders seeking top-tier flashback prevention on both torch and regulator ends.
UNMATCHED SAFETY ASSURANCE - Dual internal check valves prevent dangerous gas backflow, ensuring your workspace stays secure.

The Hot Max 24011 Flashback Arrestor Set is a robust brass safety device designed to prevent reverse gas flow in oxygen and acetylene welding setups. Featuring dual internal check valves and standard 'B' fittings, it fits most twin hoses and ensures secure, color-coded connections. Trusted by professionals and hobbyists alike, it delivers reliable flashback prevention for safer, more confident welding.

Specifications

ASIN	B005UUQJLY
Batteries Required?	No
Colour	Brass
Customer Reviews	4.2 4.2 out of 5 stars (264)
Date First Available	1 Jan. 2024
Installation method	gas-welding
Item Package Quantity	1
Item Weight	249 g
Item model number	24011
Manufacturer	Hot Max
Material	Brass
Number of Pieces	1
Part Number	24011
Product Dimensions	15.24 x 11.43 x 5.08 cm; 249.48 g

Reviews

S**N

Works as intended. Product as described. Highly recommend!

6.09.2020

E**S

Home hobby shop - love to weld with all four common methods (GMAW, GTAW, SMAW, and oxy/acetylene) and just wanted to be safe - I have them on both ends and have had absolutely no issues

22.03.2014

A**D

What can I say but that they do their job well.

19.04.2024

J**R

Items arrived quickly, as described, fit the little torch, and regulators perfectly...I hope they work!

18.06.2020

Y**R

It’s a good product

21.09.2019

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