What is MSS in plumbing?

What is MSS in plumbing?

Officially founded in 1924, the Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for: Valves, Valve Actuators, Valve Modification, Pipe Fittings, Pipe …

What standard is MSS?

MSS standards address requirements for process piping in the petroleum, petrochemical, food, beverage and utility industries for products such as valves, pipe fittings, flanges and seals. These industry standards help you: Promote interoperability. Ensure quality.

How far apart should pipe hangers be?

Most plumbing codes have the following hanger spacing requirements: • ABS and PVC pipe have a maximum horizontal hanger spacing of every four feet for all sizes. CPVC pipe or tubing has a maximum horizontal hanger spacing of every three feet for one inch and under and every four feet for sizes 11⁄4 inch and larger.

What is a pipe riser?

A riser pipe is a durable metal or plastic pipe which extends from the water supply line to the water heater and up through the walls to deliver water, steam, or gas to the lavatories, kitchens, and plumbing fixtures on the upper floors of a building and branch to up to two higher levels.

What is MSS organization?

Description. The MSS Research Foundation (Marshall-Smith Syndrome) is a non-profit organization whose mission is to finance and stimulate scientific research into the Marshall-Smith Syndrome (MSS).

Which of the following is a short length of pipe installed between couplings or other fittings?

A nipple is a short stub of pipe, usually male-threaded steel, brass, chlorinated polyvinyl chloride (CPVC), or copper (occasionally unthreaded copper), which connects two other fittings.

What are pipe hangers and supports?

A pipe support or pipe hanger is a designed element that transfer the load from a pipe to the supporting structures. The load includes the weight of the pipe proper, the content that the pipe carries, all the pipe fittings attached to pipe, and the pipe covering such as insulation.

What is hanger in piping?

Definition of pipe hanger : a bracket, clamp, clip, or loop used to suspend pipes (as from ceilings, overhead beams)

How often should pipe be supported?

Most plumbing codes and building codes require support for horizontal pipe lines every 3 feet for pipe in 1/2”-1” diameters, and every 4 feet for pipe with diameters greater than 1”. Support spacing should be in accordance with applicable plumbing and building codes.

What is the maximum spacing of supports for vertical piping?

Vertical runs of pipe should be supported every 10 feet.

What’s a riser pipe?

Definitions of riser pipe. a vertical pipe in a building. synonyms: riser, riser main, riser pipeline. type of: pipage, pipe, piping. a long tube made of metal or plastic that is used to carry water or oil or gas etc.