Emerson Fisher 8580 - Page 16

8580 Valve
Instruction Manual
March 2010
16
ACTUATOR
MOUNTING STYLE
VALVE CLOSED
MOUNTING
POSITION 1
NOTES:
WHEN ONE IS FACING THE INLET, THE ACTUATOR IS TO THE RIGHT OF THE VALVE BODY.
WHEN ONE IS FACING THE INLET, THE ACTUATOR IS TO THE LEFT OF THE VALVE BODY.
FOR 60-DEGREE OPERATION WITH PUSH-DOWN-TO-CLOSE ACTION (EXTENDING ACTUATOR ROD CLOSES VALVE), ROTATE ACTUATOR LEVER COUN-
TERCLOCKWISE SO THAT LEVER INDEX MARK IS OFFSET 1 SPLINE TOOTH FROM VALVE SHAFT INDEX MARK FOR NPS 2 THROUGH 4 VALVES AND 2 SPLINE
TEETH FROM VALVE SHAFT INDEX MARK FOR NPS 6 THROUGH 12 VALVES.
CURVED ARROWS IN ”VALVE CLOSED’ COLUMN INDICATE ROTATION REQUIRED TO OPEN VALVE (COUNTERCLOCKWISE WHEN VIEWED FROM ACTUATOR
SIDE OF VALVE).
ARROWS IN ”MOUNTING POSITION’’ COLUMNS INDICATE DIRECTION OF ACTUATOR ROD TRAVEL REQUIRED TO OPEN VALVE.
6. PDTC—PUSH DOWN TO CLOSE; PDTO—PUSH DOWN TO OPEN.
RIGHT-
HAND
STYLE A
(PDTO)
STYLE B
(PDTC)
STYLE C
(PDTC)
STYLE D
(PDTO)
LEFT-
HAND
FORWARD
FLOW
43A5323-B
B1125-1/IL
1
2
3
4
5
MOUNTING
POSITION 2
5
MOUNTING
POSITION 3
5
MOUNTING
POSITION 4
5
1
3
2
3
4
5
FORWARD
FLOW
FORWARD
FLOW
FORWARD
FLOW
Figure 9. Lever/Shaft/Disk Orientation with Valve Closed
ACTUATOR ROD
ACTUATOR ROD
END BEARING
ACTUATOR LEVER
LEVER INDEX
MARKS (4)
VALVE SHAFT
INDEX MARK
TYPICAL ACTUATOR (TYPE 1052) SECTIONAL THROUGH HOUSING
A3344/IL