The WellMark, Cemco and Major names have long been known for quality products, for the petroleum and petrochemical industries. This service tenure extends from in excess of twenty years to more than thirty. Every product has been proven through extensive testing and/or years of field service to insure its quality, functional efficiency and durability.\r\n\r\nWith our broad line of diaphragm operated valves, pneumatic and electrical level controls, safety relief valves, chemical pumps, liquid level indicators, switches, point level electronic controls, and various accessory products, we can be a cost-effective single source for these products, tailored through choice of series, model, etc., to your specific application.\r\n\r\n\r\n \r\n