Rubber check valves are often used in applications where the valves must withstand erosive and harsh fluids. Proco Products, Inc., offers a variety of rubber check valves and expert advice. These valves are typically installed in hard-to-reach areas and are ideal for corrosive and harsh fluids.
Duckbill check valve
A duckbill check valve is a check valve that is commonly used in medical applications. Designed with flaps that are shaped like the beak of a duck, duckbill valves prevent contamination from backflow. This type of valve is often made of rubber or synthetic elastomer. If used correctly, duckbill check valves are effective at preventing backflow from a contaminated system.
The advantages of using a duckbill check valve over other types of check valves are numerous. First of all, duckbill check valves have a passive construction, meaning that they do not experience mechanical wear or corrosion. As a result, they offer superior reliability and a long lifespan.
ProFlex(tm) style 730
The ProFlex style 730 rubber check vale is an economical way to control back pressures. It features a molded rubber construction and can be installed directly over schedule 40 pipe. It comes with a 3/4″ 316 stainless steel worm gear clamp and zero backflow feature.
The valve is available in different styles and elastomers. All are NSF/ANSI 61 certified and available with a range of back pressure capabilities. It can also be installed in a horizontal or vertical installation.
Cla-Val RF-DB
The Cla-Val RF-DBF series of rubber-flex duckbill check valves provides high-quality and reliable performance in a variety of applications. These valves have integral metal-backed rubber flanges and can be installed directly on flanged connections. This allows the valve to offer near-full port flow and quick drainage while maintaining a low head loss.
The Cla-Val RF-DB series of check valves are highly reliable and have excellent flow characteristics. The patented design provides high-efficiency and low-head loss. The valves can be used in a variety of applications and are available in a variety of materials and configurations. This rubber check valves flexibility makes them ideal for continuous operations, as well as exposure to harsh materials.
WaStop backflow valve
A WaStop backflow valve is a device for preventing floods in water systems. This patented valve features the lowest headloss on the market, a 100% backflow prevention rate, and a unique pulsating flow pattern. Not only does this device prevent flooding, but it also reduces maintenance costs.
A WaStop backflow valve can be installed either horizontally or vertically in a pipe. When installed properly, it prevents backflow by filling a membrane with water or gas upon backflow. A WaStop (r) can block backflow in pipes up to twelve meters in length.