Emerson Fisher 1080 Data Sheet

Product Bulletin

1080 Manual Actuator

D500238X012

22.2:1080

January 2013

Fisherr 1080 Declutchable Manual Actuator

The Fisher 1080 manual actuator is a Declutchable
Actuator for manual operation of A41 double D shaft
control valves that use a 1035/El-O-Matic power
actuator. As shown in the following figure, the 1080
manual actuator mounts directly on the 1035
actuator. It can be engaged to allow manual operation
of the valve when the power actuator is not in use or
disengaged to allow automatic operation of the valve
by the power actuator.

Features

 Direct Attachment to the Power Actuator– Direct

mounting to the actuator housing simplifies
installation and eliminates the need for additional
mounting parts.

 Engage Manual Actuator At Any Point of Rotation–

A lever-operated eccentricbearingsupportonthe
input shaft allows engagement of the worm gear
with the sector at any point of rotation.

 Simplified Selection– Each size of the 1080

corresponds to the capabilities of a size of the 1035.
So you need only calculate the size of the 1035,
when ordering both a 1035 and 1080 (see table 1).

W9256

Fisher 1080 Manual Actuator Mounted on a

1035/El-O-Matic Actuator

 Positive Operation– The disengagement lever is

held in both the engaged and disengaged positions
by a spring-loaded pin, which must be released
before the lever can be moved. This reduces the
possibility of inadvertent or accidental operation. In
addition, stop-pins at the fully engaged and fully
disengaged positions provide positive limits for
lever travel.

www.Fisher.com

Product Bulletin

22.2:1080
January 2013

Specifications

1080 Manual Actuator

D500238X012

Available Configurations

Direct acting; see Handwheel Rotation

Manual Actuator Sizes

See table 1

PowerActuatorCompatibility

Compatible with all sizes of 1035 actuator; see table 1

Maximum Torque Output

See table 1, Wheel-Rim Force

Handwheel Rotation

Clockwise handwheel rotation closes valve (produces
clockwise valve shaft rotation)

Construction Materials

Housing and Cover: Cast iron
Drive Sleeve/Gear (Sector): Low-carbon steel/bronze
Worm Gear: Heat-treated steel
Input Shaft and Eccentric: Low-carbon steel/bronze
Pin Detent: 300 Series stainless steel
Shaft Bearings: Bronze

Mounting Positions (see figure 1)

J Standard mounting is with the input shaft

perpendicular to the 1035 actuator piston travel, with
the handwheel opposite the actuator supply
connections;
handwheel on the same side as the 1035 actuator
supply connections

Dimensions

Seefigure2

Approximate Weight without Handwheel

Size AAA: 5.4 kg (12 lb)
Size AA: 10 kg (22 lb)
Size A: 14 kg (31 lb)
Size B: 22 kg (49 lb)
Size C: 34 kg (76 lb)
Size D: 52 kg (115 lb)
Size F: 68 kg (150 lb)

Handwheel Weight

8-inch: 2.0 kg (4.50 lb)
12-inch: 4.0 kg (6.75 lb)
16-inch: 6.8 kg (15.00 lb)
24-inch: 5.4 kg (12.00 lb)
30-inch: 6.8 kg (15.00 lb)
36-inch: 7.8 kg (17.25 lb)

J optional mounting is with the

Ordering Information

Each size of the 1080 corresponds to a specific size of
1035 as shown in table 1. The torque output of the
1080 actuator is matched to the capabilities of the
1035 power actuator.

The1080actuatorcanhandletheSpringReturn1035
actuatortorquesaswellastheDoubleActing1035
actuator,becausetheDoubleActingtorqueat100

psig is approximately equal to the sum of both the
Spring Return spring start torque and the Spring
Return air end torque at 100 psig.

An optional bypass valve should be ordered for use on
a 1035 actuator if you plan to engage the manual
actuator while the power actuator has air pressure
applied to it. For activation of the 1080, air pressure
mustnotbetrappedinthe1035ormustbeequalized
between the pistons by a bypass valve.

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