Check Valves

APCO Swing Check Valves have been successfully installed in clean and dirty applications including sewage treatment, water treatment, water distribution, industrial water and wastewater services.

Check Valves are used to allow flow through a pipeline in one direction and prevent flow (check) from returning in the opposite direction. Check valves are commonly installed on the discharge side of the pump. The most important role of a check valve is to act as the automatic shut off valve when the pump stops to prevent draining of the system. Pressure Surge (Water Hammer) can be greatly controlled by selecting the correct check valve.

DeZURIK offers many types of check valves to handle different applications and decades of experience in proper application. Proper valve selection is critical for proper valve performance. DeZURIK factory trained representatives and application engineers can assist you in sizing and selecting the correct check valve for your application. Contact Us today!

SmartCHECK Pump Control Valves have an integrated swing check and electric motor operator combines the functionality of a full-featured pump control valve with the best features of APCO’s CVS-6000 swing check valve. It is the valve you need when you want to control pressure surge during pump startup and shutdown, and close when the pump stops - even during a power outage.

APCO Swing Check Valves prevent back flow of fluid by closing before flow reversal, thereby preventing slam and water hammer These industrial swing check valve designs meet or exceed the current revision of AWWA standard C508.

Double Door Check Valves automatically prevent back-flow and slam. They have a cost-efficient design, short laying length, low weight are easy to install.

Rubber Flapper Swing Check Valves feature a unique, simple design with only one moving part. The flapper opens to a straight unobstructed flow passage. Because the seat is on a 45° angle, the flapper travels only 35° from open to closed, usually before column reversal can occur. It has non-slam characteristics, requires no regular maintenance, and can be installed either horizontal or vertical flow up installation.

Silent Check Valves prevent water hammer by positively closing before reversal of flow can occur. The valve closes silently, is low in cost, reliable and requires no regular maintenance. Silent Check Valves are commonly used in vertical turbine pump installations when pumping from a well to an elevated reservoir. They are also recommended for commercial and industrial HVAC applications such as heating systems and condensate return lines.

Slanting Disk Check Valves are ruggedly designed with superior flow characteristics, minimal head loss and maximum slam resistance. Slanting disc check valves are the most reliable and efficient check valves available. They are ideally suited for clean municipal/industrial water and other industrial liquid applications.

Full Flow Foot Valves can be installed at the bottom of a pump suction line, inside the wet well. Foot valves are an inexpensive way to maintain prime on a single centrifugal pump. APCO Full Flow Foot Valves designed to have the high quality, long wearing construction necessary for valves that are continually submerged in a wet well that are not readily accessible for inspection or repair.

Full Flow Rubber Flapper Foot Valves are designed for water or sewage, and are suitable for submerged service. The Rubber Flapper Foot Valve is installed in the vertical position with the direction of flow in the upward direction. In this position the Foot Valve is normally closed. The Foot Valve opens while the centrifugal pump is running and closes when the pump stops running to maintain a flooded suction and primed pump.

Custom Fabricated Check Valves – DeZURIK’s Hilton brand Check Valves include a wide variety of custom designed valves for specific applications including Angle Disc Check Valves, Wafer Swing Check Valves, Titling Disc Check Valve, and Fabricated Swing Check Valves.

Pump station valve selection can present a challenge to the Engineer and Owner. For more information on Pump Station applications, see our Pump Stations page.

A check valve allows liquids to flow in one direction only. The primary purpose of a check valve is to prevent water, or other fluids, from backflowing.  The check valve closes before flow reversal to prevent slam and water hammer from potentially damaging process equipment.

A check valve is a part of a flow control system that only allows fluids to flow in one direction. When liquid attempts to flow back through the pipe, the valve shuts to prevent backflow. Check valves are often called nonreturn valves because they prevent liquids from returning to their source.

DeZURIK’s APCO check valves are essential to the safe and effective functioning of any industrial pump..

When selecting a check valve, the type of fluid and the orientation of the valve are important considerations.  Some check valves are suitable for clean water or other fluids, while other check valves valves are better equipped to transport sludge or other viscous liquids. The design orientation is also important since some check valves are designed specifically for veritical or horizontal service while other check valves are designed to accommodate both installation orientations.

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APCO SmartCHECK Pump Control Valve (CPC)
SmartCHECK Pump Control Valve (CPC)
APCO Swing Check Valves (CVS)
Swing Check Valves (CVS)
APCO Double Door Check Valves (CDD)
Double Door Check Valves (CDD)
APCO Rubber Flapper Swing Check Valves (CRF)
Rubber Flapper Swing Check Valves (CRF)
APCO Silent Check Valves (CSC)
Silent Check Valves (CSC)
APCO Slanting Disc Check Valves (CSD)
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APCO Full Flow Foot Valves (FFF)
Full Flow Foot Valves (FFF)
APCO Full Flow Rubber Flapper Foot Valves (FRF)
Full Flow Rubber Flapper Foot Valves (FRF)
Hilton Angle Disk Check Valve (H-900)
Angle Disk Check Valve (H-900)
Hilton Wafer Swing Check Valve (H-920)
Wafer Swing Check Valve (H-920)
Hilton Tilting Disc Check Valve (H-940)
Tilting Disc Check Valve (H-940)
Hilton Swing Check Valve (H-950)
Swing Check Valve (H-950)