S x S
Schedule 80 PVC S x S unions are used to join two pipes together. Unlike couplings, unions allow the joined pipes to be easily separated again. Although the ends of the fittings are permanently welded to the pipe ends, the union itself screws together to connect the two pipes. The connected pipes can be disconnected and moved at will.
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More about Schedule 80 PVC S x S Unions...
Schedule 80 PVC S x S unions feature slip sockets on both ends of the fitting. They are durable and easy to install using the standard chemical welding process employed on all PVC pipe. Chemical welds require a solvent primer, which softens the inner surface of the union and the outer surface of the pipe, and solvent glue that melts the contact areas together to create a permanent bond. The softening action of the primer allows better penetration of the glue.
Their PVC construction makes these fittings resistant to the corrosive action of many acids, bases and salt solutions. Therefore, schedule 80 PVC S x S unions are also commonly used in industrial chemical processing applications. Schedule 80 unions always have a thicker wall than corresponding Schedule 40 unions.
Unions have a definite nut side and thread side. They should always be installed so that fluid from the connected pipes flows through the nut side first. Flow is not typically restricted through a union, but some turbulence may be created at high flow rates.
All Schedule 80 PVC fittings and pipe have a maximum service temperature of 140⁰ F, and our schedule 80 fittings meet ASTM D1784 Standards and are NSF-14 Certified. Shop our selection of schedule 80 PVC S x S unions today.