Cast Iron Pipe, a tube cast from cast iron. Cast iron pipes are used for water, drainage and gas transfer lines, which include cast iron straight pipes and fittings. Labor intensity is small. According to different casting methods, it is divided into continuous cast iron pipe and centrifugal cast iron pipe. According to the interface form, it is divided into flexible interface, flange interface, self-anchored interface, rigid interface and so on. Among them, the flexible cast iron pipe is sealed with rubber ring; the flange interface cast iron pipe is fixed by flange, the inner pad rubber flange gasket is sealed; the rigid joint generally has a large cast iron pipe socket, and the straight pipe is inserted and sealed with cement. This process is now Basic elimination. The continuous gray cast iron pipe has a nominal diameter of 75-1200 mm and adopts a socket type or flange type interface. According to the function, it can be divided into two types: flexible interface and rigid interface. The straight pipe length is 4 meters, 5 meters and 6 meters; according to the wall thickness, it is divided into three levels: LA, A and B. The sand-type centrifugal gray cast iron pipe has a nominal diameter of 200-1000 mm, and the effective length is 5 meters and 6 meters. According to the wall thickness, it is divided into two grades, P and G. High strength, good toughness, thin wall, low metal consumption, and high pressure. Ductile iron pipe has a nominal diameter of 80 to 2200 mm. Compared with gray cast iron pipe, it has high strength, good toughness, thin pipe wall, low metal consumption and high pressure. The effective length is 5 meters and 6 meters. And 8 meters; according to the wall thickness, P, G two levels. It is the development direction of cast iron pipe. The ductile iron pipe is made of low-phosphorus and low-sulfur high-quality cast iron produced by iron-making blast furnace. It is cast by water-cooled metal centrifugal casting machine according to the current international advanced centrifugal casting and annealing process. After annealing, socket trimming and water treatment Pressure test, inner wall lining cement, cement lining health, water-grinding cement lining, outer wall coated asphalt paint, asphalt paint baking, socket anti-rust treatment, squirting head and packaging, etc. High elongation, corrosion resistant steel reinforcement. CYZ Self-priming Centrifugal Pump Cyz Self-Priming Centrifugal Pump,Gasoline Conveying Centrifugal Pump,Self-Priming Centrifugal Pump,Self-Priming Centrifugal Irrigation Pump Hengshui Yuanhan Trading Co.,Ltd , https://www.hengshuiyuanhanpump.com