Heating Nozzle Compatible Fuel Type Natural Gas Propane Propylene Compatible Torch Series HD 310C Tip Series MFN Tip Size 12 Tip Design Tube Head Compatible Manufacturer Victor Application Heat Treating Priming Straightening Compatible Torch Grainger Part Number 25DV27 25DV28 5KJ44 Compatible Torch Manufacturer Part Number HD 310C Flame Type Multi-Flame Maximum Oxygen Flow Rate 640 scfh Minimum Fuel Pressure Rating 13 psig (Acetylene) Minimum Oxygen Flow Rate 120 scfh