China Manufacturer FRP GRP Fiberglass Pipe

China Manufacturer High Quality FRP/GRP Fiberglass Pipe
Zhongyi FRP Pipes are highly suitable for the intake and outlet pipelines in desalination plants. Thanks to the production process, the highly corrosion resistant products can be adapted to match various requirements - large diameters and low pressure for pipes in outside areas or small diameter and high pressure for indoor pipes - and safely transport saltwater and brine for many decades.
"FRP is the material of choice for medium- to large-size plants, while smaller plants tend to use high-density polyethylene [HDPE]." FRP is more cost-effective than HDPE in the larger-diameter pipes generally used in the biggest plants. FRP materials and processes can be tailored to meet specific mechanical property requirements and have the additional advantages of corrosion and chemical resistance, flexibility and the capacity to withstand mild shock.
FRP pipes are, primarily, filament wound glass/polyester. For aboveground applications, helical filament winding on a fixed-length mandrel is most popular because it can be tailored to achieve the desired hoop-to-axial strength ratio by customizing the angle of wind, making it ideal for restrained joining. For pipes destined for burial underground, continuous filament-wound pipe is generally used because it can be produced in a greater variety of lengths and diameters. Often it is also more price competitive and lends itself better to the use of unrestrained joints, such as mechanical seal couplings.

FRP joints and fittings are generally made by hand layup, although some flanges and fittings are filament wound, depending on the cost advantages.
FRP also is commonly used to construct storage tanks and piping used in desalination plants for sodium hypochlorite (NaOCl), often used in chlorination of desalination process water, and for sulfuric acid, which can be very difficult to store in metal but can readily be handled in fiberglass/epoxy vinyl ester tanks and piping at ambient temperatures and concentrations below 50 percent.
There is a little FRP pipe in the undersea portion of intake and discharge systems, however. Typically seawater is pumped up from seabed intake equipment through concrete tunnels, often lined with polyvinyl chloride (PVC) or other plastic to decrease friction and discourage attachment of crustaceans.Typically seawater is pumped up from seabed intake equipment through concrete tunnels, often lined with polyvinyl chloride (PVC) or other plastic to decrease friction and discourage attachment of crustaceans.

FRP is not used for the high-pressure piping that forces seawater at pressures up to 1,200 psi/82.47 bar through the RO separation process, mostly because composite joints and couplings associated with such high-pressure systems are considered impractical. The pressure pipework is almost always superduplex or superaustenitic stainless steel or, sometimes, titanium. Corrosion is a real problem for steel in this environment due to galvanic attack commonly found in seawater and brackish water environments, but composites made with epoxy vinyl ester resins such as Ashland's Derakane 411 or Hetron 922, or isophthalic resins, perform admirably in desal piping application.Typical Dimensions:

DNL0.6MPa1.0MPa1.6MPa( mm )( mm )TH ( mm )TH ( mm )TH ( mm )1018004.64.64.61518004.64.64.62018004.64.64.62518004.64.64.63218004.64.64.64060004.64.64.65060004.64.64.66560004.64.64.68060004.64.64.610060004.64.64.612560004.64.64.615060004.64.64.6200120004.65 . 95.1250120004.85 . 95.7300120004.956.4350120004.95.17.5400120004.95.88.2450120005.36.28.9500120005.46.710600120006.37.611.3700120006.79.113.1800120007.21014.6900120008.210.916.41000120009.111.817.712001200010131914001200011.314.621.515001200012.215.62316001200013.116.624.51800120001418.527.220001200015.820.529.821001200017.62131.122001200019.52232.424001200020.52435.526001200022.726.5383000120002832.544.2320012000313647.53600120003339.552.440001200034.545.357.8

Engineering Mechanics Index of FRP/Composite Material (1)

1,Pipe Hoop tensile strength200~300MPaLongitudinal tensile strength50~100MPaLongitudinal flexural strength140MPaInterlaminar shear strength50MPaCrosslaminar shear strength60MPaHoop modulus of elasticity25GPaLongitudinal modulus of elasticity12.5GPaShear modulus of elasticity7GPaflexural E--modulus9.3GPa2,Fitting Tensile strength120-290MPaFlexural strength210-410MPaCompression strength130MPaTensile modulus of elasticity9.5GPaFlexural E--modulus9.0GPa

Remarks: The data in the table is the typical data
FAQ

Q:Are you a trading company or a manufacture factory?
A: Our factory is one of the biggest FRP products, FRP manufacturer in china.
Q: How about after-sales service?
A: 3 year free warranty, Lifetime technical service support.
Q: How can i install the production line and get a commissiong?
A: We may send our engineer for installation and commissioning, but relevant cost will be paid by you.
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