Spears 429-B Series PVC Pipe Fitting, Coupling, Schedule 40, Black, 1-1/2" Socket
This Spears coupling pipe fitting, in black, is made of schedule 40 PVC and has socket end connections. This coupling fitting connects two pipes with the same diameter going in the same direction to extend a straight run. This coupling has female socket connections for sliding over the ends of unthreaded male pipes or fittings. The socket ends connect to pipes with a smooth bore for enhanced flow. This schedule 40 (standard wall) fitting is made of PVC (polyvinyl chloride) for corrosion resistance, high strength, and less weight than fittings made from metal. It is compatible with schedule 40 PVC pipes and fittings. PVC can be connected to other materials such as steel, copper, or cast iron using transition fittings. This fitting provides superior flow to metal because of its smooth interior finish, which reduces friction and inhibits buildup of materials. This fitting complies with National Sanitation Foundation International (NSF)/American National Standards Institute (ANSI) 61 Annex G, NSF/ANSI 372, and conforms with lead content requirements for lead free plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act due to take effect January 2014. This coupling pipe fitting is suitable for use in cold-water pressure distribution systems including irrigation, pool and spa, potable water, and chilled water applications.
Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).
Spears Manufacturing produces thermoplastic fittings and valves for fluid, drain, waste, and vent systems. The company, founded in 1969 and headquartered in Sylmar, CA, meets International Organization for Standardization (ISO) standard 9001.
- Coupling for connecting and extending two pipes with the same diameter in a straight run
- Socket ends for connecting to unthreaded male pipes or fittings
- PVC for corrosion resistance, high strength, and less weight than fittings made from metal
- Smooth interior finish for reduced friction and material buildup
- Meets NSF/ANSI 61 Annex G, NSF/ANSI 372 for quality assurance
Polypropylene Schedule 80 Natural SR Threaded Black Coupling (5, 1-1/2")
Radial stress generated by tightening of tapered pipe threads exerts tremendous expansion forces on female plastic thread fittings. When subjected to over-tightening - even accidentally - these forces can literally split the fitting. Spears patented SR Fitting design not only alleviates this problem by containing expansion forces with its stainless steel collar, but additionally compensates for expansion stress through thermoplastic material compression. Stresses are equalized at normal joint make-up. The following graph illustrates this effect in a comparison of conventional plastic female thread fittings with Spears SR plastic thread fittings when taken to failure.
- Featuring Patented Special Reinforced (SR) Thread
- Full 150 psi Pressure Rating at 73F (23C)
- High Grade Homopolymer Compound
- Excellent Chemical Resistance
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