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November - Emerson 1051 Instruction Manual

Sizes 40, 60 and 70 styles h and j rotary actuators
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1051 & 1052 H & J
Operation
Direct Acting: Increasing loading pressure
extends the diaphragm rod out of the spring barrel
Service:
Type 1051: For on-off or throttling service with
positioner
Type 1052: For on-off or throttling service with or
without a positioner
Actuator Sizes
Type 1051: 40, and 60
Type 1052: 40, 60, and 70
Maximum Diaphragm Sizing Pressure
Size 40: 4.5 bar (65 psig)
Size 60: 2.8 bar (40 psig)
Size 70: 3.8 bar (55 psig)
Maximum Diaphragm Casing Pressure
Size 40: 5.2 bar (75 psig)
Size 60: 3.4 bar (50 psig)
Size 70: 4.5 bar (65 psig)
Maximum Valve Shaft Rotation
90, 75, or 60 deg with optional stops
(4)
Torque Limits (mm)
Limited by maximum diaphragm sizing pressure
or tables 2 and 3, whichever is less
1. Nitrile O-rings are used in optional top-mounted handwheel, adjustable down travel stop, and adjustable up travel stop assemblies.
2. Use this value to determine the maximum torque output allowed.
3. The pressure / temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
4. Exceeding any torque requirements could damage the actuator and impair safe operation.
Table 2. Output Shaft Diameters and Torque Limits for Actuators With H Mounting
ACTUATOR SIZE
ACTUATOR SIZE
40
60
(1)
70
1. Type 1052 actuator only.
2
Table 1. Type 1051 and 1052 Actuator Specifications
(2)(3)
(2)(3)
OUTPUT SHAFT DIAMETER
mm
Inches
22.2
7/8
28.6
1-1/8
38.1
1-1/2
28.6
1-1/8
38.1
1-1/2
38.1
1-1/2
Stroking Time
Dependent on actuator size, rotation, spring rate,
initial spring compression, and supply pressure. If
stroking time is critical, consult your Emerson
Process Managementt sales office
Material Temperature Capabilities
Nitrile Diaphragm or O-Rings
(–40 to 180_F)
Silicone Diaphragm: –40 to 149_C (–40 to
300_F)
Travel Indication
Graduated disc and pointer combination located
on actuator end of valve shaft
Pressure Connections
1/4 in. NPT female
Mounting Positions
See figure 10
Approximate Weights
See table 7
Additional Specifications
For casing pressure ranges and for material
identification of the parts, see the Parts List
TORQUE LIMIT FOR
H MOUNTING
NDm
240
468
1110
468
1210
1210
Instruction Manual
Form 5587

November 2006

(3)
(1)
: –40 to 82_C
Inch-Pounds
2120
4140
9815
4140
10,680
10,680

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