Diaphragm Vacuum Pump, which uses nitrile (NBR) as its pump material, has an automated cooling exhaust system to guarantee uninterrupted operation for twenty-four hours a day and to provide air, gases, or vapours free of contamination. Because of its excellent, traditional axle tree design, it runs steadily, quietly, and efficiently. It requires little maintenance and can function both alone and as a component of a modular system for more visit labtron.us