Emerson 289RC Instruction Manual download pdf

Type 289RC

D102588X012

Instruction Manual

Form 5464

July 2010









This manual describes the principles of operation and

provides installation instructions and a parts list for the

Type 289RC exhaust booster.



The Type 289RC high-capacity exhaust booster

provides “release control (RC)” control pressure

to actuators, other pneumatic devices, and related

systems that require rapid response, such as surge

valves or recycle valves on compressors. This

exhaust booster is normally used on control valve

actuators to speed up the proportional operation of a

control valve in response to sudden pressure changes

from pneumatic output devices, such as solenoid

valves or pneumatic instruments. By carefully

matching the instrument and actuator performance

with the bypass valve adjustment, the Type 289RC

reduces overshoot and related problems while allowing

very fast positioning response to system requirements

(i.e., compressor surge control). The one-way

throttling action offers superior control with exceptional

stability and the specially designed boosting system

provides high ow rates with minimum buildup.



Specications for the Type 289RC exhaust booster are

listed on page 2. Specications for a given exhaust

booster as it originally comes from the factory are

stamped on the nameplate.

Figure 1. Type 289RC Exhaust Booster

W7313

W7322

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - 

Type 289RCD102588X012Instruction ManualForm 5464July 2010This manual d

Page 2 - Type 289RC

Type 289RC2(1) 1 NPT Connect to the outlet via a bypass valve, adjustable from 0 to 0.3 Cv

Page 3

Type 289RC3Figure 2. Typical Type 289RC Exhaust Booster and Control Valve InstallationA7208

Page 4

Type 289RC4The exhaust booster’s calibration is factory set. This unit should not require calibration unless the adjusting screw ha

Page 5

Type 289RC5 7. Remove and discard all non-metallic parts. 8. Position the stem (key 18) to accept all parts. Replace all non-metallic p

Page 6

Type 289RC613. Place the spring (key 7) rmly around the lower spring guide (key 17) and install the upper spring seat (key 4).14. O

Page 7

Type 289RC7Figure 5. Type

Page 8

Type 289RCThe Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fishe

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Emerson 289RC Instruction Manual

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