Internal Steam Flare Tip The BTZ-IS (internal steam) flare and the BTZ-IS3 (internal steam super sonic) flare represent dramatic improvements over the traditional internal steam designs. Callidus' BTZ-IS flare offers significant design improvements: 1. Internal steam tubes are supplied with cast 310 SS segments at the top to prevent tube cracking and warping. 2. Each internal steam tube is supplied with a true venturi inlet at the steam injector for improved air inspiration. 3. Computer aided design of tube placement for optimum tube density and location results in a significant increase in efficiency of the internal tubes. 4. Computer aided design of the muffler assembly results in minimum air flow restriction and maximum noise reduction. The Callidus BTZ-IS and BTZ-IS3 flare configurations are single point steam assisted flare tips incorporating a multiple internal steam injection system.  These flare tip designs generate lower noise levels and high smokeless capacities. Key Features: • Cast 310 SS internal tube segments • Improved air inspiration • Optimum tube density • Low noise • Innovation muffler assembly • High smokeless capacity • Plug welded brackets • Energy efficient pilots • Extremely stable pilots • Venturi inlet at steam injectors