SCA Check and Stop Valves

The SCA Check and Stop Valves series is a line of angleway valves that combines check-valve operation with a built-in shut-off function for refrigeration systems. The series is designed to open at very low differential pressure, uses an internal damping chamber to reduce flutter and pulsation, and is built for favorable flow characteristics and straightforward service access. Across the range, the valves use low-temperature steel housings and bonnets, stainless steel bolts, PTFE sealing elements, and a polished stainless steel spindle with internal backseating that allows spindle-seal replacement while the valve remains under pressure. The series is approved for a wide range of refrigerants, operates from -60 °C to +150 °C, and is rated for a maximum working pressure of 52 bar. Overall, the SCA series is intended for refrigeration installations that need combined shut-off and non-return functionality in one valve body with multiple connection options and serviceable construction.