Recent Blogs
Flexible Pipe Ball Joint: Angle-Sum Comparison | FIRGELLI
Compare entered joint angles and equal-share demand in a simplified coplanar model. Learn why piping geometry and product ratings need separate checks.
Mercurial Compensation Pendulum: First-Order Thermal Balance
Explore historical mercurial pendulum compensation and a first-order balance between rod growth and mercury center-of-gravity rise, including jar expansion.
Compensating Pendulum Bob Mechanism: How It Works, Parts, Diagram and Uses in Precision Clocks
Explore opposing rod and liquid-center thermal movements in a mercury-jar pendulum. Compare rod growth and uncompensated point-bob clock-rate change.
Flexible Pipe Joints: Free Thermal Growth Comparison | FIRGELLI
Calculate free pipe growth from length, temperature rise and expansion rate. Compare an axial allowance while keeping joint motion and restraint requirements clear.
Heintz Steam Trap: Thermal Principle and Scaling Exercise | FIRGELLI
Learn the Heintz two-metal thermal principle and explore a separate hypothetical flow-scaling equation. Values are not trap capacity or seat-sizing ratings.
Flanged Expansion Joint: Free Thermal Expansion Calculator | FIRGELLI
See a flanged sliding expansion joint in section. Calculate free pipe length change from length, mean expansion coefficient and temperature change.