After installing a variable pipe support, what should a boilermaker verify?

• A. The travel length is unobstructed
• B. Proposed length of travel has no obstruction
• C. The support is level
• D. Bolts torqued to spec

Answer: (B)

Variable pipe supports are meant to accommodate movement as the pipe expands or contracts, so the key check is that the path the support must travel is clear. After installation, you verify that the proposed travel length has no obstruction along the full range of motion. If anything blocks that travel, the movement could bind or damage the system when the pipe moves. While level and proper bolt torque are important for a solid install, the essential point for a variable support is that its travel path is free of obstructions.