MadModder

The Shop => Metal Stuff => Topic started by: Meldonmech on January 19, 2014, 01:17:29 PM

Title: Brazing hearth air pressure
Post by: Meldonmech on January 19, 2014, 01:17:29 PM

Hi Guys

                 Anyone know the air pressure in psi to operate a brazing hearth.

                                                                                                                       Cheers David

Title: Re: Brazing hearth air pressure
Post by: John Rudd on January 19, 2014, 01:20:48 PM

 Depends on the gas being used (propane/butane/nat gas)and the gas pressure......gas jet size comes into it too....

Title: Re: Brazing hearth air pressure
Post by: Meldonmech on January 19, 2014, 02:08:55 PM

Hi John
                 I have a Reil type burner, using propane gas and a jet size of 1mm dia. The gas has a variable pressure control, and the air intake is varied by a shutter on the venturi.  This unit has been excellent for melting aluminium in my furnace. I have aquired a new centrifugal fan used for a combi central heating unit, and would like to build a brazing hearth based on the furnace burner but with air pressure, to give me a more variable and hotter flame. Thanks for your comments.

                                                                                    Cheers David