Fisher 1052 - Keyway Alignment Information; Valve Shaft Coupling

Type 1051 & 1052 Styles H & J
12
Table 5. Keyway Alignment Information
(1)
DESIRED
DESIRED
ACTUATOR
COUPLING
VALVE SHAFT KEYWAY TO USE FOR FISHTAILR DISK VALVE
BODIES
(2)
(SEE FIGURE 8)
DESIRED
ACTUATOR
ACTION
DESIRED
SHAFT
ROTATION,
GS
ACTUATOR
MOUNTING
POSITION
COUPLING
KEYWAY TO
USE
(
3
)
Clockwise to
Close Valve Action
(4)
Counterclockwise to
Close Valve Action
(4)
ACTION
ROTATION,
DEGREES
POSITION
USE
(3)
Flow Left to
Right
(4)
Flow Right to
Left
(4)
Flow Left to
Right
(4)
Flow Right to
Left
(4)
1 B Nose Tail Tail Nose
Push Down to
60 or 90
2 A Tail Nose Nose Tail
Push
Down
to
Open (PDTO)
60 or 90
3 B Tail Nose Nose Tail
()
4 A Nose Tail Tail Nose
1 A Tail Nose Tail Nose
Push Down to
60
(5)
or 90
2 B Tail Nose Tail Nose
Push
Down
to
Close (PDTC)
60
(5)
or 90
3 A Nose Tail Nose Tail
()
4 B Nose Tail Nose Tail
1. For actuators with H mounting and 2-inch (50.8 mm) output shafts, and for actuators with J mounting.
2. For conventional disk valve bodies, use either valve shaft keyway.
3. See figure 8 for reference coupling orientation to use with this table.
4. When viewed from actuator side of avalve body.
5. For 60-degree rotation with PDTC action, the coupling and actuator output shaft assembly will be offset 30 degrees clockwise (for actuator housing construction style B) or
counterclockwise (for actuator housing construction Style A) in the lever when viewed from the splined end of the actuator shaft. 30 degrees is one spline tooth for 3/8, 1/2, and
5/8-inch (9.5, 12.7, and 15.9 mm) valve shafts and two spline teeth for 3/4 through 1-1/2 inch (19.1 through 38.1 mm) valve shafts.
Figure 8. V alve Shaft Coupling
A3253/IL