MREG-A and MREG-B are angle-way and straightway hand regulating valves, which act as normal stop valves in closed position.The valves are available in two different versions – MREG-A and MREG-B designed for regulation purposes in liquid and expansion lines.The valves are available in two different versions – MREG-A and MREG-B designed for regulation purposes in liquid and expansion lines.The valves are designed to meet the strict quality requirements on refrigerating installations specified by the international classification societies and are carefully designed to present favourable flow conditions and accurate linear characteristics.MREG-A and MREG-B are equipped with vented cap and internal back-seating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure.