MAC Valves, Inc. is a global manufacturing leader in pneumatic valve, proportional valve, flow control and regulator technology. MAC was founded in 1959 with a focus on establishing and maintaining our position as the tec......MAC Valves, Inc. is a global manufacturing leader in pneumatic valve, proportional valve, flow control and regulator technology. MAC was founded in 1959 with a focus on establishing and maintaining our position as the technological leader in our market, having since amassed over 80 patents related to pneumatic valves and their auxiliary components. With our presence on four continents globally, and representation in every major industrial market in the world through the MDN (MAC Distributor Network), MAC has a global presence to support our customers need to keep their machines running profitability around the clock, around the world.