Fire protection inner and outer coated composite steel pipe, pipe clamp connection coated composite steel pipe manufacturer

Description :

　　Red fire coated steel pipe

　　1. The product has good hygiene performance and meets the * * standard: GB/T5135.20 automatic sprinkler fire extinguishing system coated steel pipe. The pipeline does not accumulate dirt or breed microorganisms, and belongs to a healthy and hygienic pipeline, ensuring that the fluid is not subjected to secondary pollution. Galvanized steel pipes are susceptible to corrosion, causing secondary pollution to the transported fluid.

　　2. It has excellent mechanical strength: coated steel pipes have both the mechanical strength of steel pipes and the corrosion resistance of plastic pipes, and have strong resistance to external forces such as impact, bending, pressure, and strength.

　　3. The product has low heat loss, and the thermal conductivity of the steel pipe is 46.5w/m.K. However, due to the internal and external coating of the plastic coated composite steel pipe, the same insulation design reduces the heat loss of the coated composite steel pipe.

　　4. The service life of fire coated steel pipes is over 50 years, while galvanized steel pipes are generally 20 years, which will incur significant maintenance costs at 78 years

　　5 . The product has good corrosion resistance and weather resistance, with plastic coating on the inner and outer walls, and acid, alkali, and salt corrosion resistance. It can be used in harsh environments and is resistant to cathodic stripping. Tin plated steel pipes are prone to rusting due to underground stray currents and soil corrosion. Nearly 4 billion tons of steel are corroded and lost worldwide every year, and their maintenance and protection costs are high.

　　6. It has low fluid resistance, smooth inner wall, high conveying efficiency, friction coefficient of λ=0.008, roughness of 0.0014, and roughness of 0.154mm for galvanized steel pipes. The energy loss of conveying fire coated steel pipes is small, which can reduce the head of the water pump. Since the head of the water pump can be converted by changing the impeller diameter, it can increase the flow rate or save electricity. The inner wall of galvanized steel pipes is prone to scaling and blockage.

　　7. The connection methods for coated composite steel pipes are diverse, including threaded connections, flange welding, and groove connections.

　　8. The product has anti vacuum performance, and the length of the pipe section specimen is (500 ± 50) mm. Appropriate measures should be taken to block the inlet and outlet of the pipeline, gradually increasing the negative pressure from the inlet to 660mm mercury column, and maintaining it for 1 minute. After the test, the internal coating should be checked for no peeling.

AfterSalesService :

• Internally and externally coated steel pipes