nipple connection

The branch nipple connection can be attached either by welding or by installing a mechanical clamp.

Grease fittings are permanently installed by a threaded connection, leaving a nipple connection that a grease gun attaches to.

MSA provided a small open-circuit breathing set with a small (5 to 7 liters) air cylinder, a circular demand regulator with a two-lever system similar to Cousteau's design (connected to the cylinder by a nut and cone nipple connection), and one corrugated wide breathing tube connected to a mouthpiece.