Rubber Duckbill Check Valves

Sept. 17, 2021
The ProFlex® Style 750 Inline check valve from Proco Products.

Exhibitor Promotion
Presented by Proco Products

The enclosed body check valve features a maintenance free design with no hinges or seals to bind or freeze. No external power sources are required, thereby making operation cost obsolete.

The internal valve features low headloss with a full port design, which opens with minimal head pressure and closes with any back pressure exerted on the valve. The 750 Series valve is provided with two clean out ports and is manufactured of carbon steel with an epoxy coating. The bolting dimensions are in accordance with ANSI 125/150# pattern.

The Style 750 inline valve offers a number of features that will be of benefit to your application, including sizes 2” through 36” for any application, no hinges or seals that bind and freeze, and abrasion resistant elastomer. Maintenance free, the valve provides exceptional backflow prevention and features a full port inline design.

In addition, the unique advantage of the valve is its ability to offer zero valve slam, which can often occur upon pump shut down. Valve slam is the amount of energy applied to the downstream seat of any valve when flow comes back or attempts to close the seat when a pump shuts off. If the energy is great enough, it will destroy a steel bodied valve. The rubber duckbill check valve inside absorbs the energy that would normally be absorbed by a steel valve. WW

Proco Products Inc. is exhibiting at WEFTEC21, booth 3927. To learn more, visit

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