Founded in 1985, Precision Pump and Valve (formerly Precision Tools and Machining) is a leading provider of specialty process ... controls including safety relief valves, control valves, regulators, chokes, and chemical injection pumps to the oil and gas, petrochemical and refining industries. . With 30 years of experience, we have the operational efficiency to handle projects of any size at competitive pricing while retaining our ability to offer personal service. read more