Why is it better than a diaphragm pump?

The IDP-3 pump is compact

It is only � the size of a diaphragm pump.

The IDP-3 pump delivers a much better base pressure

It delivers a base pressure of 250 millitorr, which is 4 times lower than that of a typical diaphragm pump. In applications where the high-vacuum pump is a turbopump, the lower base pressure results in lower bearing temperatures and lower power consumption in the turbo. Lower bearing temperature makes for a more reliable system.

The IDP-3 pump is rugged

There is nothing in the pump that can fail catastrophically. The membrane in a diaphragm pump has a limited life, and, when it fails, rapid inrush of air results.