What is the lining method of FRPP pipe

Update:03-12-2020
Summary:

The use of Pipe Fittings is becoming more and more comm […]

The use of Pipe Fittings is becoming more and more common. There are many ways to use this material and the use of products. When making pipes, many different coating methods are involved. The more common ones are the lining hose method, the mortar lining method and the epoxy resin method. The epoxy resin method is currently the most commonly used coating method for FRPP pipes. One way. This method uses epoxy resin powder inside and outside the tube. After high temperature preheating, the plastic coating layer is melted with the inner and outer walls of the tube at high temperature, and has a strong bonding force with the pipe, so as to achieve a smooth and beautiful surface of the plastic coating layer.

20mm 1/2

Since the fluid has been reduced a lot compared to the original, it has a quicker effect on increasing the flow rate and saving energy, and has excellent defense performance and good hygiene performance. It can be seen from this that it is still necessary to coat the interior of the FRPP pipe, which can not only fulfill its water transport function, but also help extend its service life. When FRPP pipes are laid overhead, pipe racks should be used for support. The pipe frame can be made of angle steel, split steel pipe and other materials, so that it can be expanded and contracted freely on the pipe frame.

 

When the FRPP pipe is arranged along a building or structure, the clear distance between the outer wall of the pipe and the building or structure shall not be less than 150 mm; when the pipe is arranged in parallel with other pipelines, the clear distance between the outer wall of the pipe shall not be less than 200 mm ; When crossing other pipes, the clear distance between the outer walls of the pipe should not be less than 150 mm. When passing through a wall or floor, a section of steel pipe should be embedded in the pipe passing through the wall or floor. The two ends of the steel pipe are exposed to the wall or floor for about 100 mm. When the FRPP pipe is connected to the valve, the valve should be firmly fixed. When conditions permit, install flexible joints at both ends of the valve to avoid damage to the pipeline when opening and closing the valve.

 

When connecting with vibration equipment such as pumps, a flexible connecting pipe should be installed between the equipment and the pipeline. When installing FRPP pipes, considering the influence of ambient temperature on the quality of equipment, when the temperature is higher than 40℃ or lower than 0℃, it is not suitable for construction. The end surface between FRPP pipe and pipe fittings or pipe fittings should be perpendicular to the axial position. When connecting FRPP pipes with flanges, they should be aligned strictly during installation. The axial tolerance should not be greater than 2mm. FRPP pipe has good physical and chemical properties. When measuring the total water consumption of hot water, the cold water meter can be installed on the cold water supply FRPP pipe of the hot water heating equipment, and the hot water meter can be installed in the group. Residential buildings with centralized hot water supply should be equipped with hot water meters on the branch pipes of personal water points.