Insulating Steel Pipe

Insulating Steel Pipe

The insulating steel pipe is used to transportliquid, gas and other materials with temperature between -50℃ and 150℃. It is extensively used in oil and gas, chemistry, aerospace, militaryfacilitates, coal mine, central air conditioner, refrigeration house and manyother applications.

Theinsulating steel pipe or polyurethane insulating pipe is composed by threeparts. The first part is made of steel. According to customer’s requirementsand different applications, seamless pipes, spiral pipes or butt welding steelpipes are typically used. Surface roughness can be R=12.5 micrometers inaccordance with standard GB6060.5-88 and Sa2 level can be achieved inaccordance with standard GB8923-1988 after the steel pipe surface is treated withshot blasting.

The second part of the insulating steel pipe is a polyurethane insulating layerthat is made by injecting polyurethane foam between the steel pipe and theouter black jacket of the insulating steel pipe. There is a third part withhigh density polyethylene black jacket with the purpose of protect polyurethanelayer from damage, prevent water leaking and serve as anti-corrosion layer.

Specifications of the Insulating Steel Pipe