This manual covers installation, adjustment, operation, maintenance, and parts ordering for Fisher 1051 and 1052 diaphragm rotary actuators with H and J…
The document provides comprehensive instructions for Fisher 1051 (sizes 40 and 60) and 1052 (sizes 40, 60, and 70) pneumatic spring-return diaphragm rotary actuators. It details the scope of use, including on-off or throttling service with positioners, and covers both H mounting adaptations for user-provided brackets and J mounting adaptations for keyed-shaft equipment.
| Operation Type | Direct Acting: Increasing loading pressure extends the diaphragm rod out of the spring barrel |
|---|---|
| Service Application 1051 | For on-off or throttling service with positioner |
| Maximum Diaphragm Sizing Pressure Size 40 | 4.5 bar (65 psig) |
| Material Temperature Capabilities Nitrile | -40 to 82°C (-40 to 180°F) |
| Material Temperature Capabilities Silicone | -40 to 149°C (-40 to 300°F) |
The maximum pressure is 4.5 bar (65 psig) for Size 40, 2.8 bar (40 psig) for Size 60, and 3.8 bar (55 psig) for Size 70.
The limit is 5.2 bar (75 psig) for Size 40, 3.4 bar (50 psig) for Size 60, and 4.5 bar (65 psig) for Size 70.
The actuator allows a maximum rotation of 90, 75, or 60 degrees when using optional stops.