Check Valve

Swing check valves: A swing check valve is a classic, self-activating non-return valve engineered to prevent fluid backflow or allow flow in only one direction. It incorporates a disc that pivots on a hinge, swinging away from the valve seat as forward flow passes through the system.

Wafer check valves: Wafer check valves are compact, lightweight check valves with a slim disc that pivots or flexes to regulate flow. When the process media moves in the intended direction, the disc lifts off its seat, allowing unimpeded passage.

Tilting disc check valve: A tilting disc check valve utilizes a disc mounted near its center, allowing fluid to flow on both sides—over and under the disc. This prevents abrupt closures and reduces water hammer, which is common in pipelines subject to frequent flow reversals.

Ball check valves: Ball check valves employ a spherical ball inside the valve body that moves up and down to obstruct or permit forward flow. The conically shaped valve seat guides the ball, utilizing gravity or spring loading to control flow direction.

Butterfly valves: A butterfly check valve, commonly identified as a dual disc, folding disc, double disc, or split check valve, utilizes two half-discs mounted on a central shaft. These discs open toward the pipe’s centerline when fluid is flowing forward, creating minimal flow resistance.

Lift check valves: The flow for lift check valves, sometimes called piston check valves, enters beneath a disc or ball. System pressure rises until it lifts the disc or ball, allowing fluid to pass upward. When flow weakens

Silent check valves: Silent check valves, also referred to as spring-assisted or poppet check valves, are engineered to eliminate water hammer and pressure shock. These valves are designed to close quietly and rapidly before any reversal of fluid flow occurs, thereby reducing the potential for system stress or damage.

Duckbill check valves: Duckbill check valves are flexible, elastomeric one-way valves shaped like a duck’s beak. Constructed from rubber or synthetic elastomer, the open end stretches over the outlet pipe while the opposite end maintains its original shape.