For Eldex pumps to function correctly, the outlet pressure must be at least 25 psi higher than the inlet pressure to ensure proper seating of the check valves, which is…

We don’t recommend doing a dry run unless it is for a very short time, as it may lead to piston seal wear. If you need to run the pump…

The compressibility compensation factor depends on the fluid. As there are too many fluids, this can be looked up online (natural gas has a 0.5% correction in volume per 100psi…

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…