Which installation practice should be avoided when installing a flexible connector to protect a pump from stress created by piping?

Which installation practice should be avoided when installing a flexible connector to protect a pump from stress created by piping?

• A. Used to absorb vibrations near the pump
• B. Used when the piping is too short; used as an elbow; used to offset the piping
• C. Used to secure the connector with clamps every 2 feet
• D. Used to route the piping away from potential heat sources

Answer: (B)

Flexible connectors are meant to absorb vibration and allow a little movement between the pump and piping, protecting the pump from stress. Using a flexible connector to compensate for piping that’s too short or to act as an elbow or offset introduces unintended bending and loads on the connector and the pump fittings. That added stress can misalign the pump, cause leaks, or shorten the life of the connector and seals. The right approach is to have adequate straight piping and proper rigid routing for changes in direction, and let the flexible connector handle only the vibration and small positional shifts. Also, route piping away from heat sources to avoid damage, and secure the connector so it doesn’t move and transmit stress.

Flexible connectors are meant to absorb vibration and allow a little movement between the pump and piping, protecting the pump from stress. Using a flexible connector to compensate for piping that’s too short or to act as an elbow or offset introduces unintended bending and loads on the connector and the pump fittings. That added stress can misalign the pump, cause leaks, or shorten the life of the connector and seals. The right approach is to have adequate straight piping and proper rigid routing for changes in direction, and let the flexible connector handle only the vibration and small positional shifts. Also, route piping away from heat sources to avoid damage, and secure the connector so it doesn’t move and transmit stress.