Langfang cast iron pipe pieces wholesale

The main features of cast iron drainage pipe compared to other metal pipe and plastic pipe, cast iron drainage pipe has some unique advantages, mainly in the high-intensity, low noise, long life, fire retardant, flexible shock, no secondary pollution, recycling of other aspects. 1, low noise, high strength, long life drain water was not filling and gravity flow state, friction, shock, vibration, noise is inevitable. Graphite cast iron can have a dampening effect on the vibration and prevent vibration energy transfer between the grain and convert vibration energy into thermal energy. So, cast iron pipe has good noise damping properties. Experimental data indicate that, DN100 pipeline flow 2.7L / s, the cast iron pipe noise is 46.5dB, U-PVC pipe noise is 58dB, it is asking a quiet residential building, schools, hospitals, venue, hotels and other occasions , should use cast iron drainage pipe. Cast iron tensile, bending strength is more than four times the usual PVC plastic pipe. Potential difference between cast iron matrix microstructure small, electrochemical action, while the high silicon content, it is possible SIO2 continuous surface protection film, so its performance is far higher than the corrosion-resistant steel, cast iron in the same environment, media rust resistance is three times more than steel. Cast iron drainage pipe excellent corrosion resistance, strength characteristics, making life much greater than steel and plastic tubing. 2, linear expansion coefficient flexible seismic cast iron is relatively low, and thus subject to the ambient temperature itself produces a small amount of stretch, while flexible interface structure of cast iron drainage pipe, it has a high resistance to stretching, flexing deformation and seismic capacity The system axial deformation 35mm, 31.5mm lateral vibration deflection values ??within the interface does not leak. 3, high temperature, fire retardant drains have run through, connecting the floor, characteristic of the room in case of fire should the drainage pipe fusible, flame retardancy is poor, soon melted, ruptured, will form a chimney effect. Cast iron pipe retardant and high melting point make it a good fire retardant. 4, no secondary pollution, renewable recycled cast iron itself does not contain toxic chemicals, no secondary pollution of sewage, waste water and drainage pipes when building or dismantling scrap, cast iron drainage pipe can be 100% recycled , recycling.