A check valve, also known as a non-return or one-way valve, facilitates the unimpeded flow of gases or liquids in one direction while effectively preventing any reverse flow. This directional preference is defined by the free flow direction and the checked or non-return direction.

Proper installation orientation is paramount for these valves, as they operate strictly in one direction. An arrow on the valve housing serves as a helpful guide for determining the flow direction.

Cracking pressure, a vital aspect of check valves, represents the minimum upstream pressure differential required between the inlet and outlet for the valve to function. Check valves are designed for and can be tailored to specific cracking pressures.

ACEV Flow Control stands as a prominent manufacturer of industry-acknowledged check valves, offering a vast array of brands, styles, connection types, materials, and specifications. Our robust and dependable valves ensure non-slam closure, minimal head loss, and drip-tight sealing when closed.

ACEV Flow Control provides a diverse selection of check valves tailored for various applications, each functioning uniquely yet sharing a common goal. Our portfolio includes swing check valves, ball check valves, piston check valves, axial flow check valves, and dual plate check valves.

Swing check valves feature a hinged or shaft-mounted disc that pivots to permit forward flow and returns to its seat to halt reverse flow. The disc's weight and return flow dynamics influence its shut-off characteristics.

Ball check valves utilize a spherical ball that travels vertically within the valve body. Precision-machined seating and a conical chamber ensure the ball seats securely, effectively preventing reverse flow.

Dual plate check valves offer an economical and streamlined solution, automatically preventing backflow and slam while boasting a compact design, minimal length, lightweight construction, and ease of installation.