河南郑州江海消防设备有限公司

Product specifications:,,,,,,,,,,3 Purpose: Prevent the flame from spreading along the opening
Performance indicators of the fire-retardant ring:
Volume expansion/immersed in water without immersion, then immersed in cement slurry and then blocked Time fire resistance time class
3. Class B. Class.
The series of fire-retardant ring products for building drainage pipes and building drainage pipes that our factory specializes in is the latest new fire-proof product developed by the company. The product consists of a metal outer shell, a waterproof inner shell and an expansion fire-retardant core material. When installed, Set on the pipe wall and fixed on the lower surface of the floor or both sides of the wall. When a fire occurs, the intumescent fire-retardant core material expands rapidly when heated, squeezing the heated and softened cable threading pipe and hard polyvinyl chloride pipe wall inward, sealing the hole through the pipe in a short period of time, effectively preventing the flame from spreading along the hole. spread. Because the fire-retardant ring is used in a relatively humid environment, the fire-proof inner shell will effectively extend the service life of the fire-retardant ring.
Placement of fire-retardant rings
According to the "Technical Regulations for Construction Drainage Rigid PVC Pipe Engineering" of the Ministry of Construction of my country, fire-resisting rings should be placed in the following parts of high-rise buildings and other buildings with fire protection requirements< br/> When the diameter of the main pipe of the exposed pipeline is greater than or equal to the diameter of the main pipe, a fire-retardant ring should be installed at the penetration part of the floor.
. A fire-retardant ring should be installed at the part of the wall where the horizontal branch pipes of exposed pipes and the concealed main pipes are connected.
When the horizontal pipe passes through the fire partition wall, fire-stop rings should be installed on both sides of the wall.
. The drainage vent pipe passes through the upper roof or the roof used to evacuate people in case of fire, and a fire-retardant ring is installed at the bottom of the roof panel.