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Aluminum Alloy SIL3 Rack And Pinion Pneumatic Actuator

Place of Origin Tianjin,China
Brand Name JSFC
Certification CE/SIL3/ISO9001
Model Number AT-SR/DASeries
Minimum Order Quantity 01/PC
Packaging Details Wooden case
Delivery Time 1-3working days
Payment Terms T/T
Supply Ability 100000/Month
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Product Description
Material Aluminum Alloy Color Red
Option Color Blue,White,Orange Option Material SG Iron
Type Single/Double Name Rack And Pinion Pneumatic Actuator
High Light

SIL3 Rack And Pinion Pneumatic Actuator,

OEM Rack And Pinion Pneumatic Actuator,

SIL3 single and double acting actuator

Product Description

Durable Rack And Pinion Pneumatic Actuator , High Performance Control Valve Actuator

Pneumatic rack and pinion actuators

1.  Introduction – Pneumatic rack and pinion actuators

1.1. Identification

The Apollo Rack and Pinion actuators are available as double-acting or spring-return versions. They are designed to use standardized interfaces for solenoid, switch box, or positioner mounting (NAMUR).

The valve interface is equipped with an insert in the pinion bottom that allows for ISO 5211 mounting. The springs in the spring-return version allow a fail action in case of loss of air supply pressure (fail-to-close or fail-to-open).

Item Description
1 Top auxiliaries interface ( NAMUR)
2 Solenoid Interface (NAMUR)
3 Valve interface with ISO 5211 patterns and insert drive
4 Spring-return actuators with springs
5 Double-acting actuators with no springs
6 High end caps for double-acting and spring-return models up to size -400
7 Low end caps for double-acting models, sizes -400 and larger

 2Specifications – Pneumatic rack and pinion actuators

Table 1: Pressure Range

Actuator Type Spring Quantity Pressure
Double-Acting n/a 2-8Bar
Spring Return 10 pcs 5bar
8 Pcs 4bar

Table 2: Operating Media

Actuator Type Operating Conditions
Double-Acting &

Spring Return

Air, dry or lubricated & inert gas
Dew point at least 10°C below ambient temperature
For sub-zero applications, take appropriate measures
Mentioned pressure levels are “gauge pressures”

Table 3: Temperature Range

Actuator Type Temperature
°F °C
Standard -4° – 176° -20° – 80°
Low Temperature -40° – 176° -40° – 80°
High Temperature -4° – 248° -20° – 120°

 3. Installation – Pneumatic rack and pinion actuators

This section explains:

· The “Failure Modes” of an actuator.

· In which position the actuator will end after a failure.

· Principles of operation:

o Solenoid operation

o Double acting and Spring return operation

· Assembly codes.

· Actuator to valve assembly

Aluminum Alloy SIL3 Rack And Pinion Pneumatic Actuator 0

3.1. Failure Modes

3.1.1. Valve Rotation

For the following paragraphs, we assume that the valves rotate as

indicated in Figure 4.

3.1.2. Position after Failure

The position of the actuator after a failure depends on the:

· Principle of operation

· Assembly (code) of the actuator

· Type of failure

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