Ace Glass 7566-13 10/30 Outer Straight‑Through Joint

Tubing is same diameter as reinforcing rings on the joint. Strain on the joint is reduced from expansion due to temperature increase. Properly clamped, the joint tends to remain cooler, with less tendency toward lubrication loss. Very heavy walls are not desirable for thermal shock resistance, but are desirable for resistance to mechanical pressure and shock. Therefore, providing reinforcement rings instead of heavy wall results in a better balanced design. No hold-up below joint makes this an ideal joint for flask necks, receivers, etc.