Glass fiber reinforced plastic (FRP) pipes are the result of many years of scientific research, development and successful manufacture. They are new materials followed by stress concrete pipes, nodular graphite pipes and cast iron pipes used in large-scale fluid transportation projects, mainly used for buried pipe, overhead pipe, with light weight, degree, corrosion resistance, long service life, low operation and maintenance costs. Can Save a lot of money for construction projects. The main molding process is controlled by computer. The inner lining is made on the core mould according to the prescribed procedure, and the inner lining is made according to the designed line shape and thickness after GEL, the quartz sand and resin mixed mortar is entwined in the structural layer. Back Winding Outer Protective Layer. Its main raw and auxiliary materials: Resin, surface felt, short-cut fiber, continuous glass fiber, quartz sand and other auxiliary materials.
PIPELINE IMPLEMENTATION STANDARDS: National Building Materials Industry Standards. /T838-1998“Glass fiber winding reinforced thermosetting resin sand pressure pipe”. Standard of National Ministry of Construction “Glass fiber winding reinforced thermosetting resin sand pressure pipe”. Product Specification: we can provide sand pipe with diameter from 100mm to 4000mm, length of 6M, 10m, 12m, and elbow. Tee, Flange, y-type, t-type joints and pipe fittings with reduced diameter, etc. . Product structure: frp Pipe is also called (frp sand pipe, frp drainage pipe, frp winding pipe, frp top pipe) structure by the inner lining, transition layer, structure layer (containing sand layer) , protective layer four parts. Inner Lining; also called anti-seepage and anti-corrosion layer. It plays a key role in anti-seepage and anti-corrosion of pipeline. The inner surface layer is made of 90% resin. 10% surface felting. Depending on pipe diameter and pressure, the high and low liner thickness is 1.5-2. 5 mm transition layer, formed by two layers of chopped strand mat and 75 ± 5% resin. It prevents Capillary action from happening. The structure layer is a filament winding layer. It’s the key to product strength. The resin content was 30 ± 5% . The quartz sand added to improve the rigidity of the pipeline is in this layer, and its thickness depends on the external force. Protective Layer. The layer is the outer layer of the pipeline, composed of resin, its role is to prevent buried pipelines from being eroded by the corrosive medium in the soil, in addition, the layer is added with toughening agent, agent, to the pipeline. The effect of increasing service life. The thickness is generally 0.25-0.5 M.
