Piping Compensators

Piping compensators are flexible elements for pipelines, pumps, valves and equipment. An elastic bellows with a connecting element compensates for expansion, vibration and stress.

A piping compensator absorbs thermal expansion, mechanical and acoustic vibration and stress. Other stated functions include noise reduction, use as a dismantling element at pipe valves, accommodation of installation inaccuracies and sealing of wall penetrations.

Applications include construction, plant engineering, water and wastewater, engine building, shipbuilding, and solar and wind power installations. Types for chemicals and versions in multiple elastomer grades are also described.

Define the movement, direction and required displacement. Then select nominal diameter, bellows material, flange material and drilling, operating pressure, temperature and required standard or approval. Finally check installation conditions and available face-to-face length.

Stated attributes include elastomer bellows, rotating electro-galvanised steel flanges, DIN PN 10 and examples of conformity such as 2014/68/EU, TÜV/DIN 4809, Lloyd’s Register/DNV, FDA and EC 1935/2004.

Frequently asked questions

Piping compensators reduce loads caused by thermal expansion, vibration and stress. They may also reduce noise and accommodate small installation inaccuracies within permitted tolerances.

Described types include high- and shallow-corrugated elastomer bellows and PTFE versions. Bellows form influences factors including flow resistance, movement absorption and available face-to-face length.

Examples include 2014/68/EU modules B and C2, TÜV/DIN 4809, Lloyd’s Register/DNV, FDA and EC 1935/2004. The applicable requirement depends on the selected type and duty.

Establish the vibration, movement and stress at the pump. Then check nominal diameter, pipe connection, pressure, temperature, bellows material, flange and available installation space.