Plast-O-Matic Valves, Inc. is a leading manufacturer of liquid pressure and flow control products. Its product line includes industry-grade plastic valves, regulators, solenoid valve coils and flow indicators. All Plast-O-Matic products are thoroughly inspected and tested for use in different industrial settings. Pressure regulators by Plast-O-Matic are ideal for reducing and regulating liquid pressures up to 150 psi at 75 degrees Fahrenheit. The Plast-O-Matic Valves catalogue comprises plastic solenoid valves, liquid-level control valves, relief valves, check valves and pneumatically actuated diaphragm valves. To provide a leak-proof seal and prevent back-flow of liquids in HVAC and sewage systems, the brand offers PVC / polypropylene check valves that can withstand temperatures up to 180 degrees Fahrenheit. Choose from a wide range of Plast-O-Matic flow control valves, offered in different tube / pipe sizes and materials, on Raptor Supplies.