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  • Cast iron drainage pipe is the best choice for fire-resistant buildings

    Cast iron drainage pipe is the best choice for fire-resistant buildings

    High temperature resistant, non-combustible cast iron drainage pipe systems with cast iron have absolute advantages over alternative materials in refractory structures. The cast-iron drainage pipe has high temperature resistance and is non-combustible, so that it will not burn when a building fire occurs. Plastic pipe is flammable and burns in the event of a fire in a building. The toxic gas produced by combustion will poison people and suffocate, endangering the lives of residents and firefighters. Fire-resistant buildings should ensure the prevention of fire spread. Building and fire codes require that modern fire-resistant building designs must be based on protecting the occupants of the building and providing them with escape opportunities in the event of a fire. Buildings should be protected by fire barriers for occupants. That is, each room or house is separated by building partitions and floor slabs, so that a specific time at the time of the fire
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  • Starting today, the newly revised national standard of "Flexible Interface Cast Iron Pipes, Fittings and Accessories for Drainage" is officially implemented

    Starting today, the newly revised national standard of "Flexible Interface Cast Iron Pipes, Fittings and Accessories for Drainage" is officially implemented

    "This standard replaces GB / T 12772-2008" Flexible Interface Cast Iron Pipes, Fittings and Accessories for Drainage. "Compared with GB / T 12772-2008, the main technical changes are as follows:-Added introduction and description of patent use rights; ——The scope of trial indicates that the discharge of building wastewater and sewage is gravity flow, and the content of discharged industrial wastewater has been added. ——The related technical terms and technical requirements for drainage of the same layer and special single riser drainage fittings and swirl fittings have been added; — The pressure resistance of the interface and the seismic performance of the pipeline and the experimental methods have been added; — The terminology and the classification of pipe fittings have been added; — The size of some pipe fittings has been changed, and the size and weight of B-type pipe fittings have been improved and unified; Grade A and B grades for the production of W1 straight pipes and rainwater pipes have been added to the quality requirements of cast iron
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