BIFFI ALGAS-QA EAC User Manual

13
Installation, Operation and Maintenance Manual
MAN616_EAC Rev. 5 July 2020
Section 2: Installation
Installation
Figure 9 Lifting Points for ALGAS-QA
!
WARNING
Any lifting method different from what described above is strictly forbidden.
Bif reject any responsibility for damages to goods or injuries to persons coming from
wrong lifting operations.
The actuator can be assembled onto the valve ange either by using the actuator-housing
ange with threaded holes, or by the interposition of an adaptor ange or a spool piece.
The actuator drive sleeve is generally connected to the valve stem by an insert bush or a
stem extension.
The assembly position of the actuator, with reference to the valve, must comply with the
plant requirements (cylinder axis parallel or perpendicular to the pipeline axis).
To assemble the actuator onto the valve proceed as follows:
1. Check that the coupling dimensions of the valve ange and stem, or of the
relevant extension, meet the actuator coupling dimensions.
2. Bring the valve to the position related to the actuator spring operation.
3. Lubricate the valve stem with oil or grease in order to make the assembly easier.
Be careful not to pour any of it onto the ange.
4. Clean the valve ange and remove anything that might prevent a perfect
adherence to the actuator ange and especially all traces of grease, since the
torque is transmitted by friction.
5. If an insert bush or stem extension for the connection to the valve is supplied
separately, assemble it onto the valve stem and fasten it by tightening the proper
stop dowels.
6. Bring the actuator to the position caused by the spring operation.
Lifting lugs to be used for the
actuator only. Do not lift valve and
actuator together.
Do not disassemble top or bottom
cover spring loaded.
Porential electrostatic charge hazard.
Bif is not liable for any personel
injury due to incorrect use.
Refer to IOM.

BIFFI ALGAS-QA EAC Specifications

General

Brand	BIFFI
Model	ALGAS-QA EAC
Category	Controller
Language	English

Summary

Section 1: General Warnings

1.1 General Warnings

1.3 Description of the Actuator

Provides a detailed overview of the ALGAS-QA actuator's features and design.

Section 2: Installation

2.3 Assembling the Actuator Onto the Valve

Explains methods and standards for mounting the actuator to a valve.

2.3.1 Types of Assembly

2.3.2 Valve Stem with Vertical Axis Installation

Details the procedure for installing the actuator with a vertical valve stem.

2.3.3 Valve Stem with Horizontal Axis Installation

Provides instructions for installing the actuator with a horizontal valve stem.

Section 3: Operation and Use

3.1 Operation Description

Explains how the actuator operates using pneumatic pressure and spring return.

3.2 Residual Risks

3.4 Calibration of the Quick Operation Time

Details the process for adjusting the actuator's quick operation time using the exhaust valve.

3.4.1 By-pass Adjustment

3.5 Setting of the Angular Stroke

Describes how to adjust the mechanical stops to set the actuator's angular stroke limits.

3.5.1 Angular Stroke Setting with Single Travel-Stop Screw

3.5.2 Angular Stroke Setting with Two Travel Stop Screws

3.5.3 Spring Container Stop Screw Setting

3.7 Preparation for Start-up

Outlines steps to prepare the actuator for initial operation.

3.7.1 Pneumatic Connections

3.7.2 Electrical Connections

3.8 Start-up

Provides a checklist for initiating the actuator's operation after installation.

Section 4: Operational Tests and Inspections

Section 5: Maintenance

5.1 Routine Maintenance

5.2 Extraordinary Maintenance

Covers procedures for advanced maintenance and component replacement.

5.2.1 Replacement of Cylinder Seals

5.2.1.1 Seals Replacement

5.2.1.2 Cylinder Reassembling

Section 6: Troubleshooting

6.1 Failure or Breakdown Research