INTRODUCTION
MTSV valves are servo-operated main valves with screwed-on pilot solenoid valves are 2-step servo-controlled main valves with screwed-on pilot solenoid valves. Both types use an external pressure source for opening (which means that no differential pressure across the MTSV valve is required). MTSV are used in suction lines for the opening against high differential pressure, e.g. after hot gas defrost in large industrial refrigeration systems with ammonia or fluorinated refrigerants.
NOTE:- MTSV Two Step Hot-Gas Solenoid valves are upgraded design version of old SPMLX series. The dimensions and fitting connections for both valves are same. The MTSV can be used as drop in replacement for SPMLX series. The pressure rating of MTSV is 55 bar where as old SPMLX was 28 bar.
