We recommend selecting a pump that typically runs in the upper half of its flow rate range for the best pump efficiency. For the valves to operate effectively, a pressure differential of at least 25 psi is required on the outlet side of the pump. Use our pump selection tool on the Eldex Product page to help locate a pump model for your application needs.
| Low Flow Liquid End | Standard Flow Liquid End | High Flow Liquid End | |
| Model 1: Flow rates from .002 to 10 mL/min. Optimal at lower rates, e.g., 1-20 mL/min. | 1L Flow: .002-2.5 mL/min. @ 6000 psi | 1S Flow: .003-5 mL/min. @ 6000 psi | 1H Flow: .01-20 mL/min @ 3000 psi |
| Model 2: Flow rates from .003 to 20 mL/min. Optimal at medium rates, e.g., 2.5-40 mL/min. | 2L Flow: .003-5 mL/min @ 6000 psi | 2S Flow: .01-10 mL/min @ 6000 psi | 2H Flow: .02-40 mL/min @ 1500 psi |
| Model 3: Flow rates from .01 to 80 mL/min. Optimal at higher rates, e.g., 5-80 mL/min. | 3L Flow: .01-10 mL/min @ 3000 psi | 3S Flow: .01-20 mL/min @ 1500 psi | 3H Flow: .04-80 mL/min @ 750 psi |