pressure regulators rotary valve steam regulator PRESSURE REGULATORS Cashco, Inc. began designing and manufacturing control valves and pressure regulators in 1920. Ever since then, Cashco has been adding new items to its products line through the acquisitions and product development. The company’s ownership has changed hands on several occasions since its inception, but the company still abides by its “ We Simply Make It Right “ philosophy and it guides Cashco's employees to seek that path for success. Cashco maintains this commitment bydelivering quality products and meeting the customer’s requirements in a desired time frame.