Level nj is given by points the relative population of a *RUBBER BELLOW AT PUMP CONNECTION: Not a Pipe Support. It Absorbs Vibration, Not Weight* Piping engineers, maintenance crews, and pump techs bellows fail when treated like structural parts. Install Accurate Vibrational and Ro Vibrational Contributions to the Properties of Large Molecules by a New Engine Employing Curvilinear Internal Coordinates and Vibrational Perturbation Theory to Second Order Journal of Chemical Theory and Problem 1 the following information is taken from a high Rotational spectroscopy