FRP sand pipe, referred to as FRP sand pipe for short, is a new type of flexible nonmetal (resin, fiber, sand, etc.). ) composite pipe. Most pipe manufacturers generally adopt three processes: fixed-length winding, centrifugal casting and continuous winding. It is a flexible composite pipe (resin, fiber, sand, etc.). ) is gradually popularized and used at home and abroad.
Glass fiber reinforced plastic pipes have the advantages of light weight, good pressure bearing capacity, small resistance to conveying liquid, convenient installation, long service life, moderate comprehensive cost, simple operation and low maintenance cost, and are suitable for gravity or pressure conveying systems such as urban water supply, sewage discharge, industrial water treatment and industrial infusion. Therefore, FRP pipeline is a new type of pipeline with great development prospect at present.
Matters needing attention in selecting FRP sand pipe
1. Buried depth (pressure/bearing capacity): generally buried depth is about 1 m. The deeper it is buried, the greater the bearing capacity, and the higher the requirements for glass fiber reinforced plastic pipes with sand, which can be said to have a great impact.
2. Thickness (ring stiffness): Thickness directly affects the price and ring stiffness. Generally, the thickness of glass fiber reinforced plastic sand pipe is 4- 10mm, and the specific thickness is determined according to the use requirements.
3. Corrosion resistance: FRP sand pipe has corrosion resistance, of course, it is just ordinary acid and alkali resistance. If strong acid and alkali resistance is required, vinyl resin is needed, and ordinary 196 resin cannot meet the requirements.