0781-2731 HRF 2400 Series Flow Meter
HRF 2400 series regulator/flowmeter combination are specially designed for MIG, TIG, and other inert gas welding applications. Unique design and construction features make these units equally suited for applications from the industrial jobsite to the laboratory.
Designed for CO2 application (non-siphoned tube cylinders)
High flow CO2 applications (SR 310 100 PSIG) (SR 311/312 100 SCFH) with adequate supply or source
Designed for core wire applications
Machined aluminum body & housing cap
2" (50.8 mm) gauge
Stem type seat mechanism
1.75" (44.5 mm) diaphragm - fabric reinforced neoprene
Self reseating relief valve (not designed to protect downstream equipment)
Sintered inlet filter - bronze
A regulator equipped with a flow gauge is not accurate when a back pressure in excess of 2 PSIG exists at the outlet. Back pressure is caused by a restriction in the equipment downstream of the flow gauge. Metering valves, kinked hoses or even very long hoses are restrictions that can cause back pressure. In applications where back pressure in excess of 2 PSIG can be expected, a regulator equipped with a flow meter should be used.
WARNING: High gas withdrawal rates may cause regulator freeze up and will require cylinder manifolding. Consult your gas supplier