We are offering knife gate valves.Fouress meets this challenge, by refining the knife gate valves. A precision-buffed knife plate cuts even the heaviest sludges, sharply and without erosion. One-piece trim provides corrosion-resistant, wear-resistant, high-performance shutoff over a long service life. Fouresss compact, lightweight knife gate valves have been handling the industrys problem fluids dependably for over 30 years.