ARO 93114-2 Buna-N Duckbill Check Valve for Diaphragm Pump Repair

ARO 93114-2 Black Buna-N Duckbill Check Valve

The ARO 93114-2 Duckbill Check Valve is a black Buna-N replacement component for compatible ARO diaphragm pumps. Buna-N, also known as nitrile, identifies the valve’s material—not its size. Select this part when inspection identifies a duckbill that requires replacement and your equipment documentation specifies 93114-2. It is a replacement valve component rather than a complete pump or service kit.

Match Your Pump’s Duckbill Configuration

ARO’s 66605X-X operator’s manual lists 93114-2 as item 42 for -0DX configurations. Confirm the complete model suffix before ordering, rather than assuming every pump in the same family uses this valve.

For an existing installation, use the equipment nameplate and its parts diagram together. Include any previously documented configuration changes in your maintenance request so the replacement matches the pump as it is currently assembled.

Support the Correct Fluid-Handling Application

The 66605X range belongs to ARO’s 1/2-inch Classic non-metallic diaphragm pump series. ARO identifies the duckbill configuration for handling fibers, distinguishing it from the range’s ball-check arrangement. When servicing this equipment, preserve the check-valve configuration specified for the application instead of choosing a replacement by appearance alone. The 1/2-inch designation refers to the pump’s fluid connection, not the diameter of this replacement valve.

Check Material Suitability Before Replacement

Review the process liquid and any cleaning or flushing chemicals against ARO’s material compatibility guidance. A material name alone does not establish suitability for every application. ARO recommends confirming compatibility under the actual operating conditions, and chemical exposure can reduce the usable temperature limits of a material.

Include the fluid name and operating conditions in your service request when compatibility needs further review.

Prepare for Reassembly and Ordering

Follow the applicable assembly instructions: ARO requires the duckbills to point in the same direction for the selected flow arrangement.

Before purchasing, record 93114-2, the complete pump model and the number of replacements needed. Add any associated components identified during inspection to the repair order, and keep immediate maintenance quantities separate from additional spare stock.