Pinch Valves, RKL Pressure Sensors, Expansion Joints, Knife Gate Valves, TMS Mixing System, Series TF-1 & 2 Check Valves, In-line Check Valves, Diffusers.

The best choice for the toughest applications

Solving your most demanding flow control applications – this has been the single driving force behind Red Valve since our founding in 1953. Today we remain dedicated to responding to your needs with valve products and engineering services that set the standard for the world’s toughest applications. Our initial order was for the world’s first coal slurry pipeline, where we created the only available valve capable of reliable slurry control.

Today, Red Valve is the world’s largest manufacturer and supplier of pinch valves and has become the preferred supplier for municipalities and industrial plants worldwide. Red Valve’s global representative network stands ready to work with you to solve your toughest applications.

Providing cost-effective, creative valve solutions

Red Valve Company is the world’s largest manufacturer of pinch valves and has an international reputation for quality-engineered valves designed for long life in the toughest municipal and industrial applications. Red Valve’s advanced elastomer technology is engineered into every Red Valve pinch valve, control valve, slurry knife gate valve, pressure sensor, Redflex© Expansion Joint and revolutionary all-rubber Tideflex© Check Valve. We’re dedicated to listening and responding to customer needs with innovative products and services.


Red Valve’s Approach to the Wastewater Treatment Process

Red Valve provides a “Total System Solution” for wastewater treatment plants, providing products for each phases of treatment…collection, separation, aeration, treatment, and final discharge. Our complete product line allows our customers to use one source for all of their slurry handling needs, including on/off and control valves, check valves, pressure measurement, expansion compensation, air diffusers and effluent diffusers. No other company provides such a complete approach to the wastewater process. And all Red Valve products are designed to handle the rigors of handling raw sewage, sludge, scum and grit with abrasion-resistant, non-clogging designs.


  • Holding/Pre-Treatment Basins


  • Polymer Feed Systems
  • Scum Control
  • Carbon Slurry
  • Ferric Chloride
  • Sampling

Tideflex Technologies

A Division of Red Valve Company, Inc.

Tideflex Technologies was the original inventor and manufacturer of duckbill style check valve and has continued to enhance and refine the design and performance of this product. The duckbill check valve is inherently a variable orifice device which changes it’s effective opening area with respect to the internal pressure and mass flowrate through the unit. This flexibility can be incorporated into the design of the unit so that it will also perform as a variable flow nozzle. Enhancing velocity discharge and momentum within a fluid body is the key in achieving adequate mixing. Along with designing duckbill check valves for non-restrictive backflow prevention, Tideflex Technologies also designs and manufactures mixing systems which utilize this variable orifice technology and the unique Tideflex Hydrodynamic Nozzles.

Twenty years of proven field operation, research and development, and continued engineering enhancements have combined to make the Tideflex Model TF-1 today’s most reliable duckbill check valve. The bill design is formed in a curve that returns to a closed position every time, achieving the tightest possible seal for backflow applications, particularly at low flow rates. The eccentric flat-bottom design allows installation where the invert of the pipe is close to the floor, and the stronger engineered spine provides long-term performance while handling long-term water weight. No other manufacturers can produce this design with these state-of-the-art features. When you specify the Tideflex TF-1 Curved Bill Check Valve, you’re guaranteed to receive a product with a proven record of maintenance-free backflow prevention.