Other models available upon request.
The channel bottom is perforated to allow insertion of an external additional pipe.
The P-trap is connected to the lower protruding part of the additional pipe, and the debris and rodent filter to the upper part. Both the trap and filter connections to the additional pipe are made via socket joints equipped with NBR gaskets that ensure a wide operating temperature range and excellent resistance to oils, mineral greases, petroleum-derived hydraulic fluids, aliphatic hydrocarbons, methane and LPG, diesel and kerosene, and hot water up to 100°C. The additional pipe, P-trap, and filter are made of AISI 316 stainless steel.
Two ductile cast iron gratings of grade GJS 500/7 (EN 1563) in class D400 are screwed to the channel in dedicated seats on the reinforcement frames using 4 M10x25 stainless steel screws per grating.
The flame traps can be manufactured with a cast iron profile, based on Smart Pro G channels, to allow the use of ductile cast iron gratings with FAST LOCK preparation for easy installation with simple pressure. This ensures faster maintenance times, resulting in lower costs for the highway network management company and less inconvenience for motorists.
Hydraulic capacity testing was performed on SMART PRO 150 flame traps at Istituto Giordano laboratories. The test was conducted on a hydraulic test bench that fed the trapped unit with a series of water jets on an appropriately inclined guide. The water flow rate was gradually increased to verify the maximum flow rate that the flame trap could handle without head formation, and this value exceeded 6.6 l/sec (higher than the 5 l/sec specified in some Special Tender Specifications prepared by Highway Companies).