Double Diaphragm Low Leakage Safety Pumps
KNF double-diaphragm, oil-free pumps are designed for transporting and evacuating costly, high purity, rare and/or dangerous gases. The back-up secondary diaphragm ensures ultra-low leak rates of <6x10-6 L/sec. Applications include cryostats, pulse tube and dilution refrigeration, and helium liquefiers. When escape is not an option, think KNF.