The 118Z Series pressure/vacuum oil-less diaphragm pump from Thomas Division (Sheboygan, WI) provides a low-vibration design that utilizes a lightweight nylon housing and end cap that limit the pump’s weight to 4.4 pounds. It features a 24V brushless DC motor.

Specifically designed for fuel cell applications, the pump features permanently lubricated bearings, stainless steel valves, and all wetted aluminum parts treated for corrosion protection. Maximum continuous pressure is rated to 20 psi (1.38 bar), and maximum vacuum to 75% local barometer (-745 mbar).

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