Introduction Parker MB Series Ball Valves, with their rugged compact design, offer positive shut off or directional control of fluids in process, power and instrumentation applications. The unique one piece seat/packing design insures excellent sealing characteristics while accommodating a superior temperature range and cycle life. These valves are available in 2-way and 3-way configurations, brass and stainless steel construction, with a wide variety of port connections. Also, all ports are suitable as inlets to full operating pressure of the valve. Features • One piece seat/packing design • Broad temperature range • Coated metal inserts • One piece stem/ball • Wide variety of US Customary and SI ports • Panel mountable to 1/4" thickness • Bi-directional flow • Handle indicates direction of flow • Full operating pressure at any port • Positive handle stops • Color coded handles • factory tested • Vent option • Manual, electric or pneumatic actuation • Leak-tight center-off position on 3-way valves Specifications • Pressure rating: 3000 psig* (207 bar) CWP - MB6 2500 psig* (172 bar) CWP - MB2/MB4/MB8 • Temperature rating: -65 °F to 300 °F (-54 °C to 149 °C) • Orifice: .052” to .406” (1.3 mm to 10.3 mm) • Cv: .05 to 6.96 • Body materials: Stainless Steel and Brass • Body configurations: 2-way (in-line and angle) 3-way, 4-way and 5-way • Port connections: Tube compression (CPI™ / A-LOK®) NPT (Male / Female) BSP, VacuSeal and UltraSeal • Port size: 1/16" to 3/4" and 3mm to 12mm • Seat/Packing: PFA-Perfluoroalkoxy *Preset from factory to 1000 psig (69 bar) bubble tight service. Packing nut must be tightened to achieve higher pressures. Packing in vented MB Series Ball Valves is factory adjusted for the maximum valve pressure rating of 500 psig (34 bar).
