Products

Kennedy Swing Check Valves are designed and manufactured in conformance with A.W.W.A. C508 and are for use on water, oil and gas lines. Under certain circumstances where it is desirable to have more positive control of the closing of the disc, the valves can be supplied with either lever-and-spring or lever-and-weight.

Kennedy Swing Check Valves are designed and manufactured in conformance with A.W.W.A. C508 and are for use on water, oil and gas lines. Under certain circumstances where it is desirable to have more positive control of the closing of the disc, the valves can be supplied with either lever-and-spring or lever-and-weight.

The increasing check valve is available for customers needing an arrangement that requires a transition from a smaller diameter pipe to a larger diameter pipe.

The cushion check valve is available for customers needing an arrangement that retards the closing of  a check valve, potentially due to the water column having the opportunity to reverse or even separate due to not being at the lowest elevation of the system. The pneumatic cylinder has a needle valve that allows the customer to adjust the time required for the valve to close.

The Ken-Flex Resilient Hinged Check Valve eliminates most problems associated with swing check valves. Due to its simplicity, it is ideal for “dirty water” applications.

The Patriot Check Valve prevents reverse flow through the fire hydrant, safely protecting our drinking water while providing a full port unobstructed waterway that allows our firefighters the water they need when they need it.

The Series 37 Inline Check Valve is a simple, reliable, cost-effective solution for backflow prevention. The revolutionary design of the 37 is similar to the Series 35, but the Series 37 bill does not flare and is designed to be inserted into the downstream pipe and fastened between two mating flanges, eliminating the need for a valve body. Since most of the valve is inserted into the downstream pipe the face-to-face dimension of the Series 37 is just the flange thickness, making it ideal for applications with space limitations. In order to fit down inside the pipe, the bill cannot flare and therefore the headloss of the 37 is higher than other styles of Tideflex Check Valves. The Series 37 in not only installed in piping systems, but is used extensively in concrete manholes and structures where the valve is inserted into the effluent pipe and the flange is anchored to the concrete wall with a retaining ring.

The Series 37 flange size drilling conforms to ANSI Class 125/150# and is also available with DIN drillings and other standard or customized drilling patterns. Series 37 Check Valves are not supplied with retaining rings, as they are typically installed between pipe flanges, but retaining rings can be supplied for applications that require it.

For higher backpressure ratings or to lower headloss while maintaining backpressure ratings, the Saddle Support Technology (SST) can be used in conjunction with the Series 37.

The Series 39 Slurry Check Valve is designed to handle abrasive slurries, sewage, sludge and other difficult services.   At the heart of the Series 39 Check Valve is a fabric-reinforced elastomer check sleeve that provides thru-flow at minimum pressure drop across the valve at all times. Forward pressure opens the valve automatically, reverse pressure seals the valve. The check sleeve even seals around entrapped solids.

This inner rubber duckbill check valve minimizes wear and deterioration caused by continuous operation of abrasive slurries. And there are no mechanical parts such as hinges, disks or metal seats that can freeze, corrode or bind valve operation.  The Series 39 Inline Check Valve, provided with a clean-out port and two flush ports, has a cast iron body, which is available epoxy-coated or rubber-lined. The valve has thru-drilled flange holes, face-to-face dimensions meet ANSI B16.10 specs. When ordering, line pressure and back pressure must be provided as each valve is custom-built to match the flow requirements of the installation. For higher backpressure ratings or to lower headloss while maintaining backpressure ratings, the SST can be used in conjunction with the Series 39.

For smaller diameter applications, consider our threaded Series 2633 in sizes 1/2″-3″. For larger applications, consider the Series 39F Large Diameter Inline Check Valve in sizes to 84″.

The Series 39F Large-Diameter Slurry Check Valve is designed to handle abrasive slurries, sewage, sludge and other difficult services. The valve’s operation is silent and non-slamming, just like the smaller Series 39.

At the heart of the Series 39F Check Valve is a fabric-reinforced, elastomer check sleeve that provides through flow at minimum pressure drop across the valve at all times. Forward pressure opens the valve automatically and reverse pressure seals the valve. The check sleeve even seals around entrapped solids.  This inner elastomer check valve minimizes wear and deterioration caused by continuous operation of abrasive slurries. And there are no mechanical parts such as hinges, disks or metal seats that can freeze, corrode or bind valve operation.

The Series 39F Inline Check Valve is provided with a clean-out ports and flush ports for routine maintenance and cleaning. The valve features an epoxy coated, fabricated-steel body. The valve has thru-drilled flange holes and face-to-face dimensions meet ANSI B16.10 specs. The Series 39F is also available in a plain end x plain end configuration. The Series 39F can also be specially fabricated with offset flanges and a RTF-1 sleeve when bottom clearance is limited (consult factory for special configurations). When ordering, line pressure and back pressure must be provided, as each valve is custom-built to match the flow requirements of the installation.

The TF-1 has become the preferred Tideflex Check Valve configuration for outfalls. Designed for in-structure and end-of-pipe installations, the TF-1 features a flat bottom and flared top. This allows the valve to be installed at a lower overall elevation than other configurations, with less bottom clearance required. This is especially important in low-lying areas where maintaining as much driving head is critical, or where silt, sand and debris might tend to collect beneath the valve.

The TF-1 is ideal for manhole applications, such as junction boxes, diversion chambers and interceptors, where the invert of the pipe is close to the floor of the vault. These vaults are designed to maximize the available gravity head, thus the invert pipe is as close to the floor as possible. The TF-1 allows installation in such structures and is easily retrofitted to existing structures, often replacing failed flapgates. There is no need to break up the concrete floor to provide bottom clearance.

The TF-1 installs by slipping over the end of an exposed piece of pipe, and is fastened with compression clamps. The inside diameter of the TF-1’s cuff is fabricated to exactly match the outside diameter of the pipe