Fiberglass GRP Process Pipes with Laminated Joint

     FRP (fiberglass reinforced plastic) pipe is a new kind of pipe material used for fluid transportation in recent years. Because of its excellent properties, it has been used extensively on the market. The reciprocal filament winding process has the advantages of high strength, reasonable jointing type, convenient installation, speedy test of the leakage test to the joint, it mainly be used for buried pipeline and long-distance transfer pipeline.
The pipe is consisted of inner liner, interface, structural layer, and outer surface layer.
     Inner liner is corrosive resistance layer, Surfaces exposed to the chemical environment shall be resin-rich and reinforced with a 10 or 20 mil thick chemical surfacing mat (E- glass).
    Interface layer is leakage proof layer, it be reinforced by minimum of three layers of 1.5 oz chopped strand mat.
    Structural layer will be reinforced by continuous strand fiberglass roving and shall maintain a resin content of 20-40%. It is reinforcement for the inner lining layer and interface, resisting the foreign load to the pipe body and ensures the strength and stiffness of the pipe body.
   Exterior surface shall consist of a chopped strand glass over which a resin-rich coating shall be applied.
  Inspection and test of FRP pipes shall be peroformed according to  ASTM D2996, AWWA C950, ANSI etc.
1.Appearance
The inner surface of the FRP pipe should be smooth and even, no crack, delamination, pinhole, impurity, poor gel area and air bubble, the ends of the pipe should be even and uniform, no burr and exposed fiber. 
2.Dimension

5.The content of undissolvable resin shall be tested according to  GB/T2576, it is not less than 90%.
6.The barcol hardness shall be tested according to GB/T3854, it is not less than 40.
7.The content of the resin shall be tested according to GB2577, for hand lay-up method: inner liner layer ≥65%,middle layer ≥50±5%,For long filament winding method: inner liner layer ≥80%,middle layer ≥40±5%.
 

Pipe diameter(mm): DN15-DN4000mm
Quantity(m):
Medium: Sewage, drinking water, corrosive liquid or gas, pls specify content _____ _____
Pressure(Mpa): gravity, 0.6, 1.0, 1.2, 1.6, other _____
Application: aboverground
         underground, pls specify stiffness (N/m²): SN2500, SN5000, SN7500, SN10000, other _____
Design temperature(ºC):
Connections: spigot & socket with double O ring, butt & strap joint, flanged joint, other _____
Quartz sand: with, without
Length of single pipe: 3m, 6m, 9m, 12m, other _____
Standard: GB/T21238, AWWA C950, ASTM D2996,
other _____
 

Hengshui Gains Trade Co., Ltd. Locates in Jizhou City, Hebei Province-biggest production base of FRP products and radiators of China, combines advantages of local different industries, Hengshui Gains Trade Co., Ltd. consists of several large-scale manufacturers, depends on customers' different requirements, we recommend and choose suitable manufacturer to satisfy and fullfill, we can provide design, supply, shipping, installation, commissioning etc one-station service or technical consultation service. From our company to Tianjin seaport is 300km, to nearest airport is 180km, nearest high-speed train station is 90km.
Our core business and services are:  

1. FRP/GRP products: FRP vessel & tower, FRP (motar) pipe, FRP cooling tower, FRP grating, FRP electrolytic cells, FRP septic tank
2. Whole set of FRP products production line and technology: Computer control filament winding machine, FRP pultursion production line, Molded FRP products production line
3. Radiator
4.  Electrical cable
5.  Sluice gate etc facilities for water conservancy
6.  Rubber bridge bracing
7.  Whole set of chemical making equipment & technology: Mannheim process potassium sulphate making equipment & technology, Titanium dioxide production equipment & technology

Cooperation   Win-win