Polybutylene piping

Leseman WG. 1986. Water contamination caused by gasoline permeating a polybutylene pipe. JAWWA 39-43. 

An important application for polybntylene is plumbing pipe for both coimnercial and residential use. The exceUent creep resistance of polybntylene aUows for the manufacture of thiimer wall pipes compared to pipes made from polyethylene or polypropylene. Polybutylene pipe can also be used for the transport of abrasive fluids. Other applications for polybutylene include hot melt adhesives and additives for other plastics. The addition of polybutylene improves the environmental stress cracking resistance of polyethylene and the impact and weld line strength of polypropylene. Polybntylene is also used in pack aging applications. 

Large-diameter polybutylene pipe can be used as commercial and industrial process piping at temperatures up to 82°C. 

TABLE 8 Mechanical properties for large-diameter polybutylene pipes... 

Plastic pipes have also been widely used in construction over the last decade. Plastic pipes are being substituted for copper pipes in commercial and residential buildings. China currently produces PVC, PE, PP and polybutylene pipes. In the past decade, many Chinese plastic pipe producers have imported advanced technology and equipment from foreign countries. The entire production line of polybutylene pipe was imported. China also imported over 100 PVC pipe production lines. PVC pipe is the dominant type of pipe used in the Chinese construction markets. In recent years, ABS and HDPE hot-water pipe and HDPE gas pipe have enjoyed rapid growth as well. 

Polybutylene It is a polyolefin used for cold and hot water piping. As a blown film it is used for food packaging. 

ISO 15876-1 2003 Plastics piping systems for hot and cold water installations - Polybutylene (PB) - Part 1 General... 

Focusing collectors are usually cast acrylic Fresnel lenses, or mirrors of aluminized polyester film in frames of aluminum. These reflectors are either enclosed in a bubble of poly(vinyl fluoride) film, or under polycarbonate glazing, which may be covered with a fluorocarbon film to reduce the reflectivity. The absorbers for active systems are copper or aluminum since the temperatures are too high (325—370°C) for plastics. The frames, however, can be molded ABS, high density polyethylene or polyurethane, either solid or structural foam. Polybutylene or chlorinated PVC can be used for piping hot water, and tanks can be made of either reinforced polyester or blow- or rotational-molded, high density polyethylene (12—15). 

Shell Pd utyl. [Shell] Polybutylene resin thermtqtlastic resin for polymer bloi g, film, pipe applies. 

Shell Pdybutylene. [SheU] Polybutylene resin thermqdastic resin for polymer blen g, film, pipe tqrplics. 

Ground coupled heat pumps may now be feasible, largely due to the availability of durable and Inexpensive plastic pipe. Pipe materials such as polyethylene, FVC, and polybutylene have been found to be adequate In some Instances. However, no material standards or recommended design practices exist to facilitate the optimization of the performance, cost and reliability of these systems. 

The plastic pipe market is dominated by PVC pipes, which hold 80% of the market. Polyethylene, principally HDPE, is used for about 12% of pipe production. Following polyethylene are other higher priced, specialty pipes made from ABS terpolymer, chlorinated PVC, polypropylene, polybutylene, and fiber-reinforced epoxy and polyester. 

PP-R has lower strength, but greater flexibility, whilst retaining good high temperature capability. The material is used for smaller diameter flexible tubing in hot water internal piping. Here it competes as a lower cost alternative to PE-X and polybutylene. 

Plumbing (piping for cold/hotwater, drainage and gas distribution and floor heating systems) Mostly PVC, CPVC (for large diameter industrial pipes), MOPVC, PE-FiD and ED and other types, ABS, PP, GRP, polybutylene (PB), acetal, polyolefins (croslinked PE (XPE) (for floor heating)... 

For hot water systems, (i.e., in underfloor heating systems and for hot water distribution), pipes are mainly polybutylene (PB), which can be used in systems with a continuous operating temperature of 82 °C and can survive short peak temperatures of up to about 110 °C, as well as crosslinked polyethylene (XLPE) with improved creep resistances, that can withstand operating temperatures for the same range as PB. The heat dispersion is optimised by these plastic piping systems by using the heat storing capacity of the floor. 

Use of buried plastic pipes also called geopipes , for pipeline transmission of water, gas, oil and in drainage systems for bnildings, retaining walls, tunnels, highways, railways, slopes, landfills, etc. PVC, HDPE, PP, polybutylene (PB), acrylonitrile butadiene styrene (ABS) and cellnlose acetate bntyrate (CAB) are the polymer resins in current... 

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