Emerson Bettis BHH Series User manual

Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
December 2019
Bettis BHH Series
Hydraulic Double-Acting Balanced Rotary Actuator 90° Quarter-Turn

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Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
Table of Contents
December 2019
Table of Contents
Table of Contents
Section 1: Overview
1.1 Description and General Information............................................................. 1
1.2 Torque Performance ..................................................................................... 2
Section 2: Safety
2.1 Warning Levels used in Manuals .................................................................... 4
Section 3: Installation
3.1 Storage and Transport................................................................................... 6
3.1.1 Storage before Installation ................................................................. 6
3.1.2 Transport and Storage........................................................................ 6
3.1.3 Dispatch............................................................................................. 6
3.1.4 Handling after Installation and prior to Service Operation................... 7
3.2 Commissioning............................................................................................. 7
3.3 Placing the BHH ............................................................................................ 7
3.4 Service Area .................................................................................................. 7
3.5 Mounting Directions of Actuators on Buttery Valves.................................... 8
3.6 Flange and Stem on Buttery Valves.............................................................. 9
3.7 Examples of different Installations of BHH on Valves...................................... 9
3.8 Choice of Hydraulic Oil ................................................................................ 11
3.8.1 Viscosity / Temperature Coefcient .................................................. 11
3.8.2 Selection Diagram............................................................................ 12
Section 4: BHH Mounting
4.1 BHH Mounted on Valve - ISO 5211 .............................................................. 13
4.1.1 Preparations before Mounting.......................................................... 13
4.2 BHH Mounting on Buttery Valve ................................................................ 13
4.3 BHH Mounting on Ball Valve........................................................................ 15
Section 5: Adjusting the Valve Disc
5.1 Adjustment Procedure ................................................................................ 16
5.1.1 Standard Opening / Closing Time for Buttery Valves ....................... 17
5.1.2 Adjustment of Buttery Valve “a” - measurement (mm) ................... 18
5.1.3 Opening and Closing Time for LPUM on Actuator ............................. 19
5.1.4 Opening and Closing Time for LPU on Actuator ................................ 19

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Table of Contents
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Table of Contents
Section 6: Mounting 90° Turn Set (Indication Plate)
Section 7: Flushing Instruction
7.1 Flushing Procedure ..................................................................................... 22
7.1.1 Flushing Unit .................................................................................... 23
7.1.2 Flushing with Nitrogen ..................................................................... 23
7.1.3 Flushing with Oil............................................................................... 23
Section 8: Operating
8.1 Operating Restriction.................................................................................. 24
8.2 Turning Direction in Relation to “A” and “B” ................................................ 24
8.3 Emergency Operation of BHH Actuators ..................................................... 25
8.3.1 Opening by Emergency Operation Key BHH 125 to BHH 500............ 25
8.3.2 Operating by Portable Hand Pump BHH 125 to BHH 32000.............. 26
8.3.3 Operating by Directed Mounted Hand Pump.................................... 27
8.3.4 Operating by Portable Hand Pump Submerged Actuator.................. 27
Section 9: Service and Maintenance
Section 10: BHH Dismounting
10.1 BHH Mounted on Buttery Valve................................................................. 29
10.1.1 Preparations before Dismounting..................................................... 29
Section 11: BHH Re-mounting
11.1 Preparations of Seals before Mounting ........................................................ 32
Section 12: Valve Traveling Time Adjustment
12.1 Operating Time for Valve Open/Closed ....................................................... 38
12.1.1 Valve Operating Time Table for Rotary Actuator (Quarter-Turn)........ 39

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Table of Contents
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Table of Contents
Section 13: Troubleshooting
Section 14: Spare Parts BHH 125
14.1 Parts, Spare and Material List for BHH 125................................................... 42
Section 15: Spare Parts BHH 250
15.1 Parts, Spare and Material List for BHH 250................................................... 45
Section 16: Spare Parts BHH 500
16.1 Parts, Spare and Material List for BHH 500................................................... 48
Section 17: Spare Parts BHH 1000
17.1 Parts, Spare and Material List for BHH 1000................................................. 51
Section 18: Spare Parts BHH 2000
18.1 Parts, Spare and Material List for BHH 2000................................................. 54
Section 19: Spare Parts BHH 4000
19.1 Parts, Spare and Material List for BHH 4000................................................. 57
Section 20: Spare Parts BHH 8000
20.1 Parts, Spare and Material List for BHH 8000................................................. 60
Section 21: Spare Parts BHH 16000
21.1 Parts, Spare and Material List for BHH 16000............................................... 64
Section 22: Spare Parts BHH 32000
22.1 Parts, Spare and Material List for BHH 32000............................................... 68
Appendix

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Overview
Section 1: Overview
1.1 Description and General Information
Figure 1
Bettis BHH series includes several balanced rotary actuators used for operation of
quarter-turn valve. The actuator is prepared for mounting of control equipment with
several different functions and combinations. For more information see our product data
sheets or contact our sales representative directly.
Long service life and functional reliability of hydraulic systems and their components are
dependent on correct handling, installation, maintenance and repair to ensure fault-free
operation. Instructions directly attached to the equipments (e.g. nominal pressure) must
be observed. The system must not be operated over the permissible operating range. For
detailed information, please refer to the nal specications to be submitted.
The customer is responsible for ensuring that these instructions are read and fully understood.
For personnel safety and safety of the equipment please read the Section 2 for Safety.
NOTE:
For technical data please refer to Product Data Sheets.
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Section 1: Overview

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Overview
1.2 Torque Performance
BHH 125 BHH 250
BHH 500 BHH 1000
BHH 2000 BHH 4000
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Section 1: Overview

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Overview
BHH 8000
BHH 32000
BHH 16000
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Safety
Section 2: Safety
2.1 Warning Levels used in Manuals
The following warning levels are used in the documentation of Bettis for the safety of
people and equipment.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in property damage.
NOTE:
Indicates important information regarding the product.
WARNING
All personnel that handles Bettis actuators shall take part of and understand the
following information prior to handling the system. See warnings on following page.
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Section 2: Safety

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Safety
WARNING
Failure to follow safe installation and service guidelines could result in death or serious injury.
• Make sure only qualied personnel perform the installation or service.
• Do not perform any service other than those contained in this manual unless you are
qualied and authorized to do so.
• Always observe local environmental, safety, and health regulations.
• Use only certied instruments and tools appropriate for the area classication.
• Use the equipment only as specied in this manual. Failure to do so may impair the
protection provided by the equipment.
• Use only spare parts from Marine Tank Management. Any replacement with
non-recognized spare parts can jeopardize the intrinsic safety and the function of
the product.
WARNING
High voltage that may be present on leads could cause electrical shock.
• Avoid contact with live leads and terminals.
• Before working on any electrical units, the wiring has to be disconnected and
circuits de-energized.
• Disconnect power to any electrical unit you are to replace.
WARNING
Avoid shearing forces and tension on pipelines and components. Piping must be strong
enough to carry the actuator weight.
• Always follow safety guidelines when handling heavy equipment. The weight of the
equipment is noted on the drawings.
• Do not lift the actuator with valve using the lifting eye installed on the actuator top
part. Use proper lifting facilities and transport equipment.
CAUTION
Flushing through Bettis components are not allowed.
• All Bettis components are cleaned before shipment and do not need ushing.
• Some components will be damaged is system ushing is performed and others are
not possible to ush.
• Piping system must be ushed before Bettis components are connected.
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Section 2: Safety

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Installation
Section 3: Installation
Pre-Installation Considerations
At delivery each component is separately packed for water and dust protection so any
precaution must be kept to reduce the risk of getting dust, water and foreign matters
entering the components.
All Bettis equipments have been ushed to NAS 1638/10 and plugged and function tested
before leaving Bettis.
Equipments ready for use, such as power units, control cabinets, actuators etc. do not
require ushing prior to putting into service.
3.1 Storage and Transport
3.1.1 Storage before Installation
The system equipment must be stored under shelter in their original shipping boxes with
protection for rain, preferable in dry indoor place, not directly exposed to wind, rain, sand,
dirt, etc. The equipments with packing should be kept from the possibility of physical
damage and protected against environmental dust. Moist conditions should be avoided.
The equipments should be stored in an easily accessible place where they can be easily
brought out for rigging work.
3.1.2 Transport and Storage
Use proper lifting facilities and transportation equipment.
In case of lifting, take care not to damage the painting. Scratches or damage of a coated
area can cause galvanic corrosion. If scratched repair before equipment is nally installed.
The valves shall be storage and transported in a way to avoid damage on the valve rubber;
e.g. an actuator on valve must not make full contact with the rubber ring on another valve.
By transport, storage and dispatch of actuators type FO, the disc (which in this case is open)
must be protected and packed so damage on the disc will be avoided.
3.1.3 Dispatch
All valves shall be 2 – 5 mm open at dispatch to avoid that the disc is sticking in the rubber.
However, this does not apply to spring closed valves.
CAUTION
Transit and shipment of actuators type FO (Fail Open) must always be done without
hydraulic pressure. This means that the valve in this case is open. Have your attention on
this when handling FO actuators.
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Installation
3.1.4 Handling after Installation and prior to Service Operation
After installation the equipment should be covered with strong heat shrinkable plastic
cover, as thoroughly as possible with using humidity absorbers inside the plastic cover. Be
careful to protect the coated and plastic surfaces, and particularly avoid hard and sharp
items in contact with the equipment. Secure the equipment to prevent it from tipping over.
Check the equipment regularly, especially for damages on the shrinkable plastic cover and
also check the condition of the humidity absorbers.
3.2 Commissioning
In conjunction with maintenance, commissioning is very crucial for the service life and
functional safety of the hydraulic system.
Checking for the most common faults can minimize faults during commissioning.
The most common faults are:
• The uid reservoir was not checked.
• The unltered operating uid was used.
• System components were not bled of air.
• Hydraulic actuator was not bled (seal damage!)
• Limit switches were adjusted too close.
• Hysteresis of the pressure switch was not taken into account during setting up.
• Hydraulic pump was not lled with pressure uid before commissioning.
3.3 Placing the BHH
When deciding where to place the BHH there are several aspects to consider before
actually mounting the BHH. Type of valve and environment are some of the main aspects.
Following descriptions are instructions and guidelines to be considered in the placing and
pre-installation procedures.
NOTE:
The piping must be strong enough to bear the actuator weight!
Do not use force, to minimize shearing forces and tension on pipelines and components!
CAUTION
DO NOT hold up the whole set actuator with valve using the lifting eye installed to the
actuator top part!
Please refer to the handling means of the valve manufacturer.
3.4 Service Area
There should be enough space around the actuators to ensure easily access and service.
To be able to perform emergency operation by emergency key or hand pump there must
also be enough space around the actuator enabling this operation.
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Section 3: Installation

Installation, Operation and Maintenance Manual
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Installation
3.5 Mounting Directions of Actuators on
Butterfly Valves
This instruction is applicable as a general instruction for the mounting direction of
actuators on valves. If any deviations from the standard (customer requirements) it must
be stated at the valve list. This instruction applies for Bettis BHH actuators.
Figure 2 Examples of actuators positions on valves:
B: Behind, F: Front, L: Left and R: Right.
NOTE:
Position L and R might require a 90° Turn set (indication plate) to show correct position of
the indication groove. See “Mounting 90° Turn Set (Indication Plate)” on Section 6.
Picture 1:
Placement B
Flow direction
Flow direction
Flow direction
Flow direction
Picture 2:
Placement L
Picture 3:
Placement F
Picture 4:
Placement R
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Installation
3.6 Flange and Stem on Butterfly Valves
Recommended / Normally used for BHH on buttery valves.
3.7 Examples of different Installations of
BHH on Valves
Figure 3 Valve with “Standard” ISO5211
This example shows a BHH mounted on a Wouter Witzel EVFS with ISO 5211.
Table 1.
BHH Flange Stem
Size Flange ISO 5212 DIN 6885 DIN79 Intrusion
125 F05 F07 ø17 ø16 45
250 N/A F07 ø25 ø24 50
500 F07 F10 ø35 ø30 55
1000 F10 F12 ø42 ø36 63
2000 F12 F14 ø58 ø50 75
4000 F14 F16 ø74 ø63 85
8000 F16 F25 ø95 ø80 105
16000 F25 F30 ø95 ø85 132
32000 F30 F35 ø160 N/A 160
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Installation
Figure 4 Valves with “Open Box” Section Brackets
This example shows a BHH mounted on a Wouter Witzel Dynaxe valve (can be ISO but need
pack bushing if mounted submerged or open deck or in high moisture).
Figure 5 Ball Valves
Smaller ball valve sizes can be of ISO5211 pattern, but with threaded holes which requires
mounting from top – this means either a special ange or an additional “box section
bracket”. If the valve is with the “box section bracket” the adaption is similar to the one for
High Performance valves – however the adapter may need to “extrude”.
Larger sizes ball valves can have “Standard” ISO 5211 in this case it will be similar the
“standard” ISO5211.
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Installation
3.8 Choice of Hydraulic Oil
Hydraulic oil provides the hydraulic working processes with energy. In Bettis BHH
connection this means energy for valve motions.
The viscosity of the different kinds of oil varies according to the temperature; i.e. high
temperature renders a low viscosity and vice versa. Some hydraulic oil types vary more
than others. The oil viscosity is an indication of “how sluggish” the oil is. If you change the
viscosity, you also change the lubricating characteristics of the oil, especially the adhesion
that normally results in the well-known dilemma: to choose suitable hydraulic oil, which
means oil with suitable viscosity and temperature conditions.
In order to decrease operating times and to reduce the power loss in pipes, elbows and
various components (solenoid valves etc.), which the oil is to pass on its way to the
actuator, the lowest possible viscosity is preferred, whereas the “highest possible” viscosity
is preferable in order to protect pumps, solenoid valves and other movable mechanisms.
There are naturally technically and scientically other conditions than the viscosity (e.g. the
vapor pressure) which determine the lubricating characteristics of the oil and minimize the
risk of pump cavitation, but based on experience a viscosity within the range 15 cSt. (min.)
and 200 cSt. can comply with the above-mentioned conditions.
The choice of oil is not only a choice of viscosity, but also an evaluation of how cold and
warm the oil can get during normal operation under different ambient temperatures
(arctical versus tropical conditions).
The choice of oil type is customer’s responsibility as the oil is dependent on various
conditions, such as pressure, temperature etc.
NOTE:
For a list of recommended brands and types of oil please see Product Data Sheet
“Bettis Choice of Hydraulic Oil”.
3.8.1 Viscosity / Temperature Coefcient
The viscosity and the viscosity/temperature coefcient are of primary importance, as are
the density and the pour point.
For a short time at start up, a viscosity of, Vstart ≤ 1000 mm2/s may be permissible.
The operational limits of viscosity which must be guaranteed for full functionality of the
system at 100% duty are:
Voperating = 15 - 200 mm2/s
For maximum efciency and economy, the limits of viscosity are:
Voperating = 16 - 80 mm2/s
Incomplete lubrication (and associated friction and wear) starts to occur at:
Vmin ≥ 10 mm2/s
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Installation
3.8.2 Selection Diagram
Figure 6
Selection of the viscosity grade is made on the basis of starting viscosity with ambient
temperature (consider pour point where necessary) and optimum operating viscosity
according to system and operating data. In case of operation for a long time at
temperatures exceeding 70 °C, the oil will be broken down and thus loose its lubricating
properties. In order to guarantee a long service life for the installation, a good and reliable
ltration is necessary.
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BHH Mounting
Section 4: BHH Mounting
4.1 BHH Mounted on Valve - ISO 5211
4.1.1 Preparations before Mounting
All O-rings and X-rings are laid in hydraulic oil before mounting.
Mounting of seals must be carried out in clean environment (no burrs, nicks and chips).
All O-rings / X-rings are replaced at service.
NOTE:
For placement and ID no., see assembly drawing.
CAUTION
At assembly of actuator on valve be aware to leave space enough for the adaptor between
actuator and valve. This means that the actuator by itself can fall down on the intermediate
ange, before tightening.
4.2 BHH Mounting on Butterfly Valve
Mounting BHH on Valve
1. Mount the bearing to t the ange insert. 2. Mount the pin.
3. Mount the angle bearing.
4. Clean the ange bottom.
5. Mount the friction elements. 6. Clean the valve ange.
7. Apply uid sealing.
8. Mount the actuator ange.
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BHH Mounting
Mounting BHH on Valve
9. Mount the screws. Do not tighten. 10. Mount the adapter.
11. Tighten the screws. 12. Mount the seal.
13. Mount the actuator. 14. Mount the banana washers and screws.
Do not tighten.
15. Adjust the buttery valve disc. See “Adjusting
the Valve Disc” on Section 5.
16. Tighten the screw.
17. Test the valve for tightness.
NOTE:
If using buttery valves with vulcanized rubber please follow the instruction for
“Adjusting the Valve Disc” on Section 5.
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BHH Mounting
4.3 BHH Mounting on Ball Valve
1. The ball is turned into the position where the bore in ball and housing are in line.
2. The actuator is turned into fully open position.
3. The adapter is mounted on the valve stem.
4. The actuator is mounted on the valve, so that the indicator groove is following the
valve bore best possible. The screw is tightened loosely against the banana washer.
5. Check that there is no gap between actuator and adaption ange.
6. Check that there is no gap between adaption ange and valve ange.
7. It has to be assured that there is proper contact in sealing area and around bolt areas.
8. The backlash between adapter and stem is absorbed by turning the actuator
counter-clockwise and then tighten the adjusting screws.
9. Tighten all screws and operate the actuator about 10 times into closed and
afterwards into open position to check that the stem does not seize.
(Throttle speed!)
10. Check that the bore of the ball is in line with the bore of the housing.
11. If not so, the adjusting screws are adjusted until the bores are in line.
12. The adjustment shall always be completed with operation as under item 5 and
afterwards a nal check.
13. If it is doubtful whether the valve has sufcient covering in closed position, this can
be checked as follows: The valve is operated into intermediate position, and the
ball is greased close to the closing edge.
14. The valve is turned into closed position and then back into intermediate position.
The distance, where the grease is scraped off, should be 2 - 3 mm. If it is shorter,
please contact Emerson.
15. The screw is tightened against the banana washer, and the adjusting screws
are tightened.
Figure 7
Relief hole position, when valve is
in closed position.
VALVE IN CLOSED POSITION
UPSTREAM DOWNSTREAM
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Section 4: BHH Mounting