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Introduction

2.2 Intended Use

The EL-O-Matic F Rack and Pinion actuators are intended for the automation and operation

of quarter-turn valves like Buttery, Ball and Plug valves.

Rack and Pinion actuators can also be used to operate dampers or any other quarter-turn

applications.

2.3 Specifications

Table 1. Pressure Range

Actuator Type Pressure

Double-Acting 0.2 to 8.3 barg (2.9 to 120 psig)

Spring-Return

6 to 8.3 barg (87 to 120 psig), with maximum spring set

3 to 8.3 barg (43.5 to 120 psig), reduced spring quantity

Table 2. Operating Media

Actuator Type Operating Media

Double-Acting and Single-Acting

Air, dry or lubricated and inert gases

Dew point at least 10K below ambient temperature

For sub-zero applications, take appropriate measures

Mentioned pressure levels are "gauge pressures".

Gauge pressure is equal to absolute pressure minus

atmospheric pressure.

1. Recommended air quality according ISO 8573-1 for normal operation: 7-5-4.

NOTE:

Use of lters, pressure regulators, lubricator and an oil/water separator mounted in the air

supply line, will allow a smooth and durable operation of the actuator.

For lubricated supply air, it is recommended to use a non-detergent oil without aggressive

additives, VG32, group 2 (ISO 3448).

Table 3. Temperature Range

Actuator Type Temperature

Standard -20°C to +80°C (-4°F to +176°F)

Option: Low Temperature -40°C to +80°C (-40°F to +176°F)

Option: High Temperature -10°C to +120°C (14°F to +248°F)

Installation, Operation and Maintenance Manual

DOC.IOM.EF.EN Rev. 7

September 2017

Section 2: Introduction

Emerson EL-O-Matic F Series User Manual

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