Samson 5827, Монтаж и эксплуатация, Страница: 36 / 92

6-4 EB 5827-2 EN
Operation
Actuator stem extends
− For globe valves: Valve closed
− For three-way mixing valves: Port A
à
AB open, B
à
AB closed
− For three-way diverting valves: Port AB
à
A closed, AB
à
B open
Actuator stem retracted
− For globe valves: Valve open
− For three-way mixing valves: Port A
à
AB closed, B
à
AB open
− For three-way diverting valves: Port AB
à
A open, AB
à
B closed
A
B
AB
AB
A
B
A AB
B
AB
A
B
Mixing valve for mixing service
Diverting valve for mixing service
For diverting service
For diverting service
Flow pipe
Flow pipe
Flow pipe
Flow pipe
Return flow pipe
Return flow pipe
Return flow pipe
Return flow pipe
Fig. 6-4: Operating principle of three-way mixing and diverting valves