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Check Valves

APCO Swing Check Valves

APCO Swing Check Valves (CVS-6000/6000A & CVS-250/250A) are used to prevent the back flow of fluid by closing before flow reversal, thereby preventing slam and water hammer.

APCO Automatic Control Check Valves

Excellent where Pump Discharge Control is essential, due to high velocities (10 FPS or more), and high pressures (over 100 PSI).

APCO Double Door Check Valves

Very short length, results in lowest purchase and installation costs.

APCO Rubber Flapper Swing Check Valves

Unique Simple Design with no moving parts.

APCO Silent Check Valves

Excellent to prevent Water Hammer, in multi-story buildings and vertical turbine pump installations, when pumping from a well to an elevated reservoir.

APCO Slanting Disc Check Valves

The most reliable and efficient check valve available.

APCO Full Flow Foot Valves

Full Flow Foot Valves are a form of check valve, installed at the bottom of Pump suction line, inside the wet well.

APCO Full Flow Rubber Flapper Foot Valves

The Rubber Flapper Sewage Foot Valve is installed in the vertical position with the direction of flow in upwards.

Hilton Vertical Check Valve

The H-700 is designed for vertical flow (not suitable for down-flow applications).

Hilton Vertical Vent Valve

The H-750 is used to exhaust air from a pipeline while it is being filled and to prevent a vacuum from forming when the line is drained.

Hilton Angle Disk Check Valve

The H-900 is designed for horizontal or vertical flow with a large flow area (not suitable for down-flow applications).

Hilton Wafer Swing Check Valve

The H-920 is designed for horizontal flow. The narrow face to face saves room in piping systems and the disk stop prevents interference between the disk and downstream piping.

Hilton Tilting Disk Check Valve

The H-940 Tilting Disk Check Valve is similar to H-920 Wafer Swing Check, except the shaft is closer to valve centerline; this balances the disk so that the valve will open at a low pressure differential.

Hilton Swing Check Valve

The H-950 can be fabricated from any weldable alloy and is clearly marked to show direction of flow.