Pressure vessels fiberglass reinforced plastic

Fiberglass-Reinforced Plastics Pressure Vessels. ASME Boiler and Pressure Code, Section X, (1971) New York, ASME... 

ASME SECTION X - Fiberglass reinforced plastic pressure vessels. 

Alternative Rules for Pressure Vessels (one volume) Fiberglass-Reinforced Plastic Pressure Vessels (one volume)... 

Nonmetallic pressure vessels may also be constructed to the ASME Code. Recently, ASME Section X was published to include fiberglass-reinforced plastic (FRP) vessels. Details of construction are given in Section 4.6. Concrete vessels are also being considered by the ASME. However, no specific rules are available at this time. 

The tubular reverse osmosis device is shown in Figure 4.10. The tube serves as the pressure vessel and the membrane is installed inside the tube. Tubes with inside diameters of % and 1 inch have been used. Uniformly porous fiberglass reinforced plastic tubes have been used and nonporous but perforated copper, stainless steel and fiberglass tubes have also been successfully used. The membrane can be bonded to the tube in which case it is cast in situ or the membrane can be loose. The loose membrane is cast in sheet form and a cylindrical section is formed and placed in the tube. Packing densities for the Vi-inch diameter tube are about 100 square feet per cubic foot and about 50 square feet per cubic foot for the 1-inch diameter tube. 

Rules for fiberglass-reinforced plastic (FRP) pressure vessels are covered in Section X of the ASME pressure vessel code. Construction of FPR vessels is divided into four classes the contact molding, bag molding, centrifugal casting,... 

Cartridge filters are typically designed to remove at least 90% of particles larger than their nominal rated size. For all but the smallest capacity SWRO systems, many filter cartridges, up to 100 cm (40 inches) long, are installed in stainless-steel or fiberglass-reinforced plastic (FRP) pressure housing vessels (see Fig. 3.5). 

This type of module consists of a membrane, which is placed between the feed spacer and product spacer and then the system is attached to both sides of a rigid plane or end plate (Fig. 4.3). The plates are made of different materials, e.g., porous fiberglass, solid plastic with grooved channels on the surface, reinforced porous paper, etc. The membrane unit is placed in a pressurized vessel. Feed water is forced to pass across the surface of the membrane for filtration. Permeates are collected in product manifold after passing through the membrane and brine solution is collected from porous media. However, this membrane module is not used in large scale applications because of the complexity and cost of operation. 

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