Expansion Joints, Mv Controls Home, 111 Canfield Avenue, Suite A; Randolph, Nj; Controls and Controllers; Flowmeters; Humidifiers; Joints; Regulators; Traps; Valves; WELCOME! Formed in 1988, MV Controls has grown to be a leader in the steam and hydronic specialties market. Fluid flow is our expertise. We are proud to share our 20+ years of experience in the HVAC industrial, commercial and government market. MV Contro; Rep. of Expansion Joints, Humidifiers, Pressure Reducing & Temperature Regulators ...