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Bettis Q-Series

Emerson Bettis Q series, Bettis Q100, Bettis Q150, Bettis Q200, Bettis Q350 Installation, Operation & Maintenance Manual

...
APPROVED
Bettis Q-Series Valve Actuator
Installation, Operation & Maintenance Manual
DOC.IOM.BQ.E Rev. 2
October 2017
I
Contents
A Before you start ������������������������������ 1
A1 Orientation (see fig. A1) ............................ 1
A2 Installation, operation and maintenance
reference documents ................................ 1
A3 Operating medium ................................... 1
A4 Product integrity ....................................... 1
A5 Hazardous areas ........................................ 2
A6 Warning ; Moving parts ............................ 2
A7 Prevent moisture entering the actuator .... 2
A8 Warehouse storage ................................... 2
A9 On site storage .......................................... 2
A10 Lifting instructions .................................... 2
1 Introduction ������������������������������������ 3
1.1 Orientation (see fig. 1.1) ........................... 3
2 Installation �������������������������������������� 4
2.1 Before you start......................................... 4
2.2 Failure modes ............................................ 4
2.3 Operating principle ................................... 5
2.4 Actuator assembly codes ......................... 9
2.5 Valve Installation ..................................... 11
2.6 Recommended tubing sizes .................... 12
2.7 Air consumption per stroke at
atmospheric pressure .............................12
3 Mechanical stroke adjustment ������� 13
3.1 Adjusting the “Open” position ................ 13
3.2 Adjusting the “Closed” position .............. 13
3.3 Adjusting the end position with no
electrical wiring connected ..................... 14
4 Removing and mounting of the
Bettis Q-Series Modules ����������������� 15
4.1 Removing the Bettis Q-Series modules ... 15
4.2 Mechanical alignment and mounting
of the control module .............................15
4.3 Tightning moments ................................ 15
4.4 Connecting air supply ............................. 15
5 Speed control option ��������������������� 16
5.1 Mounting Speed Control throttle(s): ...... 16
5.2 Adjusting Speed Control throttle(s): ....... 16
6 Manual Control option ������������������� 17
6.1 Mounting Manual Control ....................... 17
6.2 Manual Control operation ....................... 17
7 Trouble shooting Bettis Q-Series ���� 18
7.1 Mechanical problems .............................. 18
7.2 Pneumatic problems ............................... 18
7.3 Electrical problems .................................19
8 Maintenance ���������������������������������� 20
8.1 General....................................................20
8.2 Single acting / Spring Return actuators ...20
8.3 Bettis Q-Series recommended spare parts . 20
8.4 Position tracking device kits .................... 20
8.5 Conversion kits........................................ 20
8.6 High Temp and Low Temp Conversion kits .. 20
9 Disassembly ����������������������������������� 21
9.1 Before starting ....................................... 21
9.2 Removing end caps all types QD and
QS 40 to QS 350 ...................................... 22
9.3 Removing end caps type QS 600
to 1600 ...................................................23
9.4 Removing limit stop bolts, pistons and
pinion assembly ...................................... 24
10 Reassembly ������������������������������������ 26
10.1 Reassembly guide band and pinion
assembly ................................................. 26
10.2 Reassemble the pistons........................... 28
10.3 Reassembly end caps, all types QD and /
QS 40 to QS 350 ...................................... 29
10.4 Reassembly end caps single acting
actuators QS 600 to QS 1600 .................. 30
10.5 Mounting and setting of limit stops ........ 31
10.6 Final assembly and airtightness test .......32
11 Bettis Q-Series Parts ����������������������� 33
11.1 Exploded view Bettis Q-Series
(base actuator) ........................................33
11.2 Bill Of Material ......................................... 34
11.3 Exploded view Bettis Q-Series
(Control Module) ....................................35
1
A2 Installation, operation and
maintenance reference documents
Before mounting, installing, commissioning or (dis)assembling the actuator consult the following documents:
- All chapters of this manual and
- Installation Guide of the supplied Control Module.
- For installation in hazardous area’s: The applicable section of the Installation Guide, as shipped with the Control Module.
- For Control Modules with bus communication there may be an additional Reference Manual with more detailed information.
(available from www.emerson.com/bettis).
A3 Operating medium
• Air or inert gasses:
- Filtered to 50 micron (5 micron for QC54).
- Check the Installation Guide as shipped with the
module for the applicable air quality.
• Maximum pressure, 8 bar g / 120 psig
• Dew point 10 K below operating temperature.
• For subzero applications take appropriate measures.
A4 Product integrity
• Assembly or disassembly is only allowed for replacing seals and guide bands (soft parts).
A Before you start
Fig A1 Orientation
• Bettis Q-Series actuators must be isolated both pneumatically and electrically before (dis) assembly.
• It is not permitted to connect a pressure vessel with unreduced media to the Bettis Q-Series pneumatic actuator.
• Bettis Q-Series actuators must not be connected to an air supply greater than 8 bar g or 120 psig
• This manual does not provide instructions for installations in hazardous areas.
• Installation, adjustment, putting into service, use, assembly, disassembly and maintenance of the pneumatic actuator must be done by qualified personnel.
A1 Orientation(seeg.A1)
The Bettis Q-Series actuator is an integrated concept for the automation of quarter turn valves, dampers or other quarter turn applications. It can consists of three basic parts:
1. Pneumatic actuator
2. Pneumatic Module or NAMUR Plate
3. Control Module
1
2
3
50µm
(QC54 = 5µm)
OK
Fig A2 When needed, use Filter/Regulators with correct filter
specification.
2
A5 Hazardous areas
Improper installation in a hazardous area can cause an explosion.
• Assembly, disassembly and maintenance must be done in safe area’s without a potential explosion hazard.
• For information about installation in a hazardous area, refer to the appropriate sections of the Installation Guide, as shipped with the control module.
A6 Warning ; Moving parts
Applying pressure to the actuator or Applying a control signal to the Control Module, may cause the actuator/valve assembly to operate.
A7 Prevent moisture entering the
actuator
Condensation or moisture that enters the actuator or the Control Module can damage these components and can result in failures. Therefore:
• Try not to mount the actuator with the conduit openings or the air entries, pointing upward.
• Ensure integrity of gaskets and o-rings.
• Install drip loops in conduit or cable. When needed use Filter/Regulators with correct filter specification.
• Seal all conduit openings whether used or not.
50µm
(QC54 = 5µm)
OK
Fig A3 Install drip loops and use Filter/Regulators with correct
filter specification.
A8 Warehouse storage
• Bettis Q-Series Actuators and Control Modules should be stored in a clean, dry warehouse, free from excessive vibration and rapid temperature changes.
• Actuators should not be stored on any floor surface.
A9 On site storage
• Bettis Q-Series Actuators and Control Modules should be stored in a clean, dry warehouse, free from excessive vibration and rapid temperature changes.
• Ensure all actuator covers are in place and securely fastened.
• Replace plastic conduit plugs with appropriate pipe plugs.
Failure to follow proper storage guidelines will void warranty.
A10 Lifting instructions
• Use lifting equipement as required by national or local legislation.
Table A1 Weight of Actuators with
control modules
ACTUATOR
TYPE
Double
acting
Spring
Return
Double
acting
Spring
Return
in kg� in Ib
Q40 3.9 4.5 8.6 9.9
Q65 4.5 5.7 9.9 12.6
Q100 5.2 6.7 11.5 14.8
Q150 6.9 9 15.2 19.8
Q200 7.9 11.2 17.4 24.7
Q350 12.5 19 27.6 41.9
Q600 21.5 29.7 47.4 65.5
Q950 28.5 40.7 62.8 89.7
Q1600 44.8 67.9 98.8 149.7
• It is strongly recommended to use lifting straps to
lift the actuator/valve assembly.
• If an actuator/valve assembly should be lifted, it
is strongly recommended to connect the lifting straps in such way that the actuator and valve is supported.
3
1 Introduction
1.1 Orientation(seeg.1.1)
Fig 1.1 Introduction
5. Entries for optional manual control
6. Exhausts
7. Supply air entry
8. Entries for optional speed control
1. Pneumatic actuator
2. Visual Position Indication
3. Stroke adjustment bolts
4. Control Module
The Bettis Q-Series actuator is an integrated concept for the automation of quarter turn valves, dampers or other quarter turn applications.
1
2
3
4
5
6
7
8
Factory setting: Rotation 90°
±0.5°
Insert according
ISO 5211 or DIN 3337
Optional insert shapes
4
2 Installation
2�1 Before you start
In case of an air or electrical failure, it is important to know the behavior of the actuator. Before mounting the actuator on a valve consult the following paragraph’s.
2�2 Failure modes
Fig. 2.2.2
Fig. 2.2.1
closed
open
- the valve is open after a counter clock wise rotation (viewed from above).
2�2�2 Position after a failure
The position of the actuator after a failure depends on the:
- Operating principles (see §2.3)
- Assembly code (see §2.4)
- Kind of failure
Table 2�1 Position after a failure
Principle of
operation
Assembly
code :
Kind of
failure :
Position :
Double
acting
actuator
CW
Pressure not defined
Signal Closed
Supply voltage Closed
CC
Pressure not defined
Signal Open
Supply voltage Open
Single
acting
actuator
(Spring
Return)
CW
Pressure Closed
Signal Closed
Supply voltage Closed
CC
Pressure Open
Signal Open
Supply voltage Open
Table 2�2 Position after a failure with a Double
acting module with Fail-In-Last­Position function
Principle of
operation
Assembly
code :
Kind of
failure :
Position :
Double
acting
actuator
CW
Pressure not defined
Signal not defined
Supply voltage Closed
CC
Pressure not defined
Signal not defined
Supply voltage Open
2�2�1 Valve rotation
Valves are normally manufactured so that:
- the valve is closed after a clock wise rotation (viewed from above).
5
B-port
A-port
Ps
Rb
5/2 Spool valve
Ra
Option: LMC
Option: Throttle 1
Option: Throttle 2
Pilot valve 1
2�3 Operating principle
See paragraph 2.4 for more information about actuator assembly codes
* Electric control signals can be connected in the
Control Module (QC; see documentation supplied with the Control Module). The Control Module is equipped with a pilot valve which controls a 5/2 spool valve.
* Connect air supply to air inlet (Ps).
Outward stroke
1 Send control signal “Open” to the Control
Module.
2 Pilot valve 1 will be activated and the 5/2 spool
valve will pressurize the central air chamber.
3 The piston will move outwards to the “Open”
position.
4 The Control Module indicates the “Open” position
and activates feedback signal “Open”.
Inward stroke
1 Send control signal “Close” to the Control
Module.
2 Pilot valve 1 will be deactivated and the 5/2 spool
valve will pressurize the end cap air chambers.
3 The piston will move inwards to the “Closed”
position.
4 The Control Module indicates the “Closed”
position and activates feedback signal “Closed”.
Optional controls:
LMC Local Manual Control SC Speed Control throttles
IMPORTANT:
In case of an electric control signal failure, the actuator will move to its “Closed” position.
2�3�1 Double acting actuators
IMPORTANT
The operating principle, as explained here, is applicable for actuators with assembly code CW (direct acting).
- The outward stroke will move the valve to the “Open” position.
- The inward stroke will move the valve to the “Closed” position.
For assembly codes CC the operating principle is reversed (reverse acting):
B-port
A-port
Ps
Rb
Pilot valve 1
5/2 Spool valve
Ra
Option: LMC
Option: Throttle 1
Option: Throttle 2
Fig. 2.3.1
Fig. 2.3.2
6
2�3�2 Double acting actuators with Fail In
Last Position function
IMPORTANT
The operating principle, as explained here, is applicable for actuators with assembly code CW (direct acting).
- The outward stroke will move the valve to the “Open” position.
- The inward stroke will move the valve to the “Closed” position.
For assembly codes CC the operating principle is reversed (reverse acting):
See paragraph 2.4 for more information about actuator assembly codes
* Electric control signals can be connected in the
Control Module (QC; see documentation supplied with the Control Module). The Control Module is equipped with a pilot valve which controls a 5/2 spool valve.
* Connect air supply to air inlet (Ps).
Outward stroke
1 Send control signal “Open” to the Control Module to
activate Pilot valve 1 and de-activate Pilot valve 2.
2 The 5/2 spool valve will pressurize the central air
chamber.
3 The piston will move outwards to the “Open”
position.
4 The Control Module indicates the “Open” position
and activates feedback signal “Open”.
Inward stroke
1 Send control signal “Close” to the Control Module
to activate Pilot valve 2 and de-activate Pilot valve 1.
2 The 5/2 spool valve will pressurize the end cap air
chambers.
3 The piston will move inwards to the “Closed”
position.
4 The Control Module indicates the “Closed”
position and activates feedback signal “Closed”.
Optional controls:
LMC Local Manual Control SC Speed Control throttles
B-port
A-port
Ps
Pilot valve 1
5/2 Spool valve
Pilot valve 2
Option: LMC 1
Option: LMC 2
Option: Throttle 1
Option: Throttle 2
Rb
Ra
B-port
A-port
Ps
Pilot valve 1
5/2 Spool valve
Pilot valve 2
Option: LMC 1 Option: LMC 2
Option: Throttle 1
Option: Throttle 2
Rb
Ra
Fig. 2.3.3
Fig. 2.3.4
7
A-port
B-port
Ps
Pilot valve 1
3/2 Spool valve
Ra
Option: LMC
Option: Throttle 1
A-port
B-port
Ps
Pilot valve 1
3/2 Spool valve
Ra
Option: LMC
Option: Throttle 1
2.3.4 Singleacting(springreturn)actuators
See paragraph 2.4 for more information about actuator assembly codes
* Electric control signals can be connected in the
Control Module (QC; see documentation supplied with the Control Module). The Control Module is equipped with a pilot valve controls a 3/2 spool valve.
* Connect air supply to air inlet (Ps).
Outward stroke
1 Send control signal “Open” to the Control Module. 2 Pilot valve 1 will be activated and the 3/2 spool
valve will pressurize the central air chamber.
3 The piston will move outwards to the “Open”
position
4 The Control Module indicates the “Open” position
and activates feedback signal “Open”.
Inward stroke
1 Send control signal “Close” to the Control Module. 2 Pilot valve 1 will be deactivated and the 3/2 spool
valve will vent the central air chamber
3 The springs will move the pistons inwards to the
“Closed” position
4 The Control Module indicates the “Closed”
position and activates feedback signal “Closed”.
Optional controls:
LMC Local Manual Control SC Speed Control throttles
Fig. 2.3.5
Fig. 2.3.6
IMPORTANT
The operating principle, as explained here, is applicable for actuators with assembly code CW (direct acting).
- The outward stroke will move the valve to the “Open” position.
- The inward stroke will move the valve to the “Closed” position.
For assembly code CC the operating principle is reversed (reverse acting):
8
3
1
2
4
2�3�5 Position feedback
Bettis Q-Series patented, position sensing system
The Bettis Q-Series actuator (1) has a patented, contactless position sensing system. This system consists of a position probe (2) which is rides on a special curve (4) in the pinion bottom.
The curve is shaped in such a way that the position probe moves linearly and proportionally to the rotation of the actuator pinion.
The linear movement of the position probe is used, inside the control module (3) to operated the limit switches.
WARNING:
Do not put the Control module in direct contact
with magnetic material. This can cause damage or malfunction of the position feedback.
Installation of the Bettis Q-Series modules
For installation instructions of the modules see chapter 4.
Installation Guides - Control modules
Each Control Module is shipped with an Installation Guide, which contains more information on the pneumatic and electrical installation and operation of the Module. Additionally, these Installation Guides can be downloaded from www.emerson.com/bettis
Fig. 2.3.7
9
2�4 Actuator assembly codes
2�4�1 Double acting assembly codes
2
1
2
2
1
2
B
A
A
B
2
1
2
A
B
2
1
2
2
1
2
1
2
2
1
2
2
B
A
A
B
B
A
A
B
2
1
2
1
2
2
A
B
A
B
CC
I
CW
C
CC
C
Standard assembly code:
(= Clock Wise Rotation)
Visual indicator mounted:
(= for In line position indication
Pinion
Position indicator
Pistons
A = Pilot valve operated in Control Module - Central air chamber (1) pressurized B = Pilot valve not operated in Control Module - End cap air chambers (2) pressurized
All views are from above. Pistons are shown in inner position
Optional assembly code: (= Counter Clock Wise Rotation)
Visual indicator mounted: (= for In line position indication
Optional assembly code: (= Clock Wise Rotation)
Visual indicator mounted: (= for Cross line position indication)
Optional assembly code: (= Counter Clock Wise Rotation)
Visual indicator mounted: (= for Cross line position indication)
CW
I
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