NUT NUT 1/4 IN BRS DOM 3/4 IN HEX
JB machines all of the brass fittings at the factory in Aurora, Illinois using the highest level of brass, consisting of 65% copper and 35% zinc. This gives our brass fittings and access valves high tensile strength while resisting corrosion. Many import fittings use lower quality brass with lower copper content and higher failure rates. Our brass fittings may be used with copper, brass, aluminum, steel, and plastic tube provided an acceptable flare could be generated with the material. Vacuum pressures of 5,000 psi can be handled depending on the size, material, and conditions. Using a 4:1 safety factor, the following general rule is used:3,000 psi to 1/4 in, 2,000 psi to 1/2 in, and 1,500 psi to 1 in. Long nuts are recommended when vibration is a factor. Tubing should be double flared in extreme applications to minimize flare thinning on over-tightening. Our brass fittings general comply with SAE, ASA, ASME, and MS standards. Heavy-duty ACR tube fittings generally conform to SAE, ASA
NUT NUT 3/8 IN BRS DOM 7/8 IN HEX
JB machines all of the brass fittings at the factory in Aurora, Illinois using the highest level of brass, consisting of 65% copper and 35% zinc. This gives our brass fittings and access valves high tensile strength while resisting corrosion. Many import fittings use lower quality brass with lower copper content and higher failure rates. Our brass fittings may be used with copper, brass, aluminum, steel, and plastic tube provided an acceptable flare could be generated with the material. Vacuum pressures of 5,000 psi can be handled depending on the size, material, and conditions. Using a 4:1 safety factor, the following general rule is used:3,000 psi to 1/4 in, 2,000 psi to 1/2 in, and 1,500 psi to 1 in. Long nuts are recommended when vibration is a factor. Tubing should be double flared in extreme applications to minimize flare thinning on over-tightening. Our brass fittings general comply with SAE, ASA, ASME, and MS standards. Heavy-duty ACR tube fittings generally conform to SAE, ASA
NITROGEN FLOW METER FLW NITROGEN BRS
The NFM-TT nitrogen flow meter allows for a controlled flow of nitrogen gas through copper lines during brazing. Purging the line with nitrogen prevents oxidation and scale inside the tube which would otherwise cause contamination.
NITROGEN PURGING KIT
When brazing copper, it is imperative to purge with nitrogen in order to minimize or eliminate oxidation that results from heating the copper pipe. Without purging, oxidation will occur and the oxidized flakes that result can and will break off and flow through the system, damaging bearings and fouling system filters. All that is needed is a low pressure, low volume flow of nitrogen. The use of dry nitrogen gas also minimizes the need to evacuate moisture from the system.