[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts civil] For more complex production pipeline, at the design stage, the various types of work (HVAC, water supply and drainage pipe flange altogether, lighting and power supply building professionals) should first consult a good space separated pipes, set the elevation range of each pipe. Under normal circumstances not to go beyond the boundaries of their own regulations. In case of individual pipe sections to be negotiated with the ventilation ducts should be out of bounds to other projects. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts] duct insulation is used in heating and air conditioning works, the wall thickness of the structure plus the thickness of the insulation layer. Polystyrene foam insulation board or polyurethane foam board. Having a thickness of 20 ~ 30mm. Reducers, tees, elbows and other ventilation pipe fittings, in accordance with the corresponding vent pipe design and manufacturing. Pipeline Production | Beijing Pipeline | Tianjin Jinzhong Ji ventilation ducts provided by the Tianjin factory Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!