CKD Series PVC Check Valve for Low Pressure, For Extremely Corrosive and Ultra-Pure Liquids, 1/4" NPT Female

The Plast-O-Matic CKD series check valve is designed to prevent reverse flow of extremely corrosive and ultra-pure liquids. The valve body is made of made of polyvinyl chloride (PVC) for corrosion resistance, high strength, and less weight than fittings made from metal. PVC can be connected to other materials such as steel, copper, or cast iron using transition fittings, and it is suitable for cold water, venting, and waste applications. Viton(R) seat provides extreme temperature and chemical resistance. It has female NPT threads for connecting to male threaded pipes, creating a tighter seal than straight threads. The cracking pressure is 0.5 pounds per square inch (psi), and the maximum pressure rating is 140 psi. The maximum working temperature is 140 degrees Fahrenheit.Check valves have two ports and restrict the flow of fluids and other loose materials through a pipe or passageway to one direction. Flow enters through one port and exits through the other, closing when flow reverses or stops. Two common types of check valves are ball cone valves and swing check valves. A ball cone valve utilizes a spring-loaded ball seated against a cone-shaped interior surface to stop the flow of fluid in a forward direction, and a swing check valve has a movable disc on a hinge to block reverse flow. Check valves are rated by their cracking pressure (the minimum upstream pressure required for the valve to operate), and they are used in various water, gas, air, and steam lines.Plast-O-Matic Valves, Inc. manufactures plastic valves and controls for corrosive and ultra-pure liquids. The company, founded in 1967 and headquartered in Cedar Grove, NJ, meets certification standards.

• Check valve helps prevent reverse flow of corrosive and ultra-pure liquids
• Made from PVC for corrosion resistance, high strength, and less weight than fittings made from metal
• Viton seat provides temperature and chemical resistance
• Female NPT threads for connecting to male threaded pipes
• Cracking pressure is 0.5 psi and maximum pressure rating is 140 psi; maximum working temperature is 140 degrees Fahrenheit