We do not offer fittings for ¼” NPT connection, but adapters, such as Swagelok Fittings, are available.

Eldex Optos Series pumps are designed for the interchangeability of liquid ends, with piston sizes 3/32”, 1/8”, and 1/4”. A liquid end and piston are needed. Customers must change the…

Eldex ball and seat inlet and outlet check valves ensure precise metering. We now offer integrated one-piece check valves for stainless steel and ceramic options, with seals embedded into the…

Optos Series pumps fitted with a pulse damper can set high/low-pressure limits. When the high/low-pressure limit is violated, the pump stops running. If Optos pumps are not fitted with the…

Refill rate refers to the speed of the piston retraction during the pump refill stroke.  Full Out refers to a maximum speed refill designed to minimize pulsation.  With DI water…

Eldex pumps do not work well with slurries due to the pump's check valve design, where particulates can interfere with the ball and seat sealing, leading to an inaccurate flow…