Armaş “TSO” model two stage opening valve is used all lines will be fast filled, it can be used to prevent damage caused by fast filling. Until the low pressure port of the pilot is completely filled, flow of valve is restricted and then allowed to fully opening. It can be used with other control valves for filling the system with high water speed.
Valve size same as main line or one size smaller. Maximum flow speed for continuous operation 5.5 m/sec (18 ft/sec)