BDA Series pumps are well-suited for refrigeration and air conditioning evacuation, electron microscopy, light manufacturing, semiconductor processing, mass spectrometry, research and chemical laboratories, freeze drying, distillation, degassing, plasma processes, CVD and Vacuum furnaces, neon sign manufacturing, as well as in pumping systems as backing pumps for Roots, diffusion, turbomolecular and cryopumps. The BDA Series uses little floor or counter space and accessories bolt directly to the pump to minimize space requirements. The BDA Series pumps are equipped with an integral, high-pressure oil circulating trochoid gear pump. The oil pump ensures oil flow under all operating pressure, force-feeding oil to the journal bearings, seals, rotor and vanes. This flow allows corrosion resistant materials to be used in the journal bearings.
Cleaner oil means reduced maintenance and lower operating costs.
Low noise and vibration Special feature of the pump is extremely low operating noise level, because the laboratory vacuum pump is used almost exclusively at the workstation. With the gas ballast valve in the closed pump noise level is 50dB on the smaller pumps and does not exceed 57dB on the larger pumps. The oil pressure of the forced lubrication system controls the integral anti-suckback valve. As soon as the oil pressure decreases by switching off the pump or power failure, the valve actuates, shutting off the attached vacuum system and venting the pump. This action is unaffected by gas ballasting.