Spring hangers prevent pipes from moving.

• A. Not sure
• B. Sometimes
• C. True
• D. False

Answer: (D)

Spring hangers are designed to allow controlled movement of piping to accommodate thermal expansion and contraction, as well as dynamic forces, rather than to prevent movement. When the pipe heats up and expands, the spring compresses or extends to absorb that growth while keeping the pipe supported and aligned. Conversely, when temperatures drop, the spring releases and helps return the pipe toward its designed position. This reduces stress in the pipe and its connections and helps isolate vibration, but it does not lock the pipe in place. Fixed supports or anchors are what truly restrict movement. So the statement is false because spring hangers enable, not forbid, movement within designed limits.