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15

Installation and Operation Manual

Part Number: VA001-507-32, Rev. 1

August 2016

Section 2: Installation

Installation

Table 3.

Typical EHO Optional Accumulator System

Part Number

Part Name

A

Reservoirs

B

Accumulator

C

Nitrogen Relief Valve

D

3-way Isolation Valve

E

Isolation Valve (Accumulator Drain)

F

Isolation Valve (Nitrogen Blow Down and Fill)

G

Nitrogen Pressure Gauge

H

Nitrogen Gauge Isolation Valve

I

Speed Control

2.8.3 Pre-charge Verification
Check the nitrogen pre-charge in the accumulator periodically to ensure the accumula-
tor is at full potential. Follow the steps below and record final readings for reference.

a.

Shut off the hydraulic power supply to the accumulator.

b.

Ensure 3-way Isolation Valve (D) is turned fully counterclockwise.

c.

Slowly open Isolation Valve (Accumulator drain) (E) and drain all the
fluid back to the reservoir.

d.

Read the pressure at the nitrogen pressure gauge (G) and compare it to
the Oil/Temperature Chart shown on the General Assembly Drawing for
the job being checked.

e.

If the pre-charge is low, add nitrogen to increase the pressure to
the requirements listed on the GA Oil/Temperature Chart. See 2.8.2,
Accumulator Pre-charge, if the pre-charge is high relieve pressure to
equal the GA Oil/Temperature Chart.

f.

Record Information below.

g.

With bypass valve closed, reconnect the hydraulic power supply and
bring the accumulator back up to full pressure.

h.

Check the entire nitrogen circuit for leaks using a liquid leak detector
such as Snoop (manufactured by Swagelok). As the unit is self-contained,
only a zero leak rate is acceptable. Corrective action must be taken for
any leaks found.

WARNING:

This unit contains high-pressure hydraulic fluid and nitrogen gas. Exercise caution when
performing any type of maintenance. Wear proper safety attire and required personal
protective equipment, including safety glasses. Ensure the accumulator has been
drained of all hydraulic and nitrogen pressure before attempting any repair.

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Содержание Bettis EHO

Страница 1: ...allation and Operation Manual Part Number VA001 507 32 Rev 1 Release August 2016 Bettis EHO Electro Hydraulic Operated Double Acting Actuator Dimension Double Acting Actuator EHO 01 05 EN Page 2 of 2 Rev 0 ...

Страница 2: ...l 12 Section 3 Electrical Connections 3 1 Remove Separate Terminal Chamber STC Cover 17 3 2 Sealing Cable Conduit Entries 18 3 3 Recommended Terminal Connections 18 3 4 Separate Terminal Chamber STC Connections 19 3 5 Replace Terminal Chamber Cover 19 3 6 External Earth Ground Connections 19 3 7 Discrete Controlled Inputs Connection 20 Section 4 Set up Start up Procedure 4 1 Preparation 21 4 2 Ini...

Страница 3: ...ontrol Pushbuttons 40 Section 7 Troubleshooting Section 8 Hazardous Area Classification and SIL Certification Section 9 Weights and Dimensions 9 1 EHO Standard Double Acting 43 Section 10 Sample Wiring Diagram 10 1 2 Way Electric Powered By an Electro Hydraulic Power Unit 44 10 2 2 Way Electric With Emergency Shutdown Feature Powered By an Electro Hydraulic Power Unit 45 ...

Страница 4: ...cal power A hydraulic hand pump can be used to stroke the actuator during commissioning or in the event of an emergency power loss Electronic modules are contained within an explosion proof IP68 enclosure and all electronic components are isolated from the customer connection terminals The EHO provides a compact design with actuator and control components that have been field proven for decades in...

Страница 5: ...tirety Failure to observe these safety notices could result in serious bodily injury damage to the equipment void of the warranty Take special notice of all tags warning labels and instructions presented on the actuator These may provide more specific and significant information regarding the actuator than this general manual It is the responsibility of the user to ensure proper safety practices a...

Страница 6: ... Manual SCH Self Contained Hydraulic ESD Emergency Shutdown FS Fail safe SR Spring Return DA Double Acting MAWP Maximum Allowable Working Pressure MOP Maximum Operating Pressure STC Separate Terminal Chamber PBM Pushbutton Module LDM Local Display Module RDM Remote Display Module CBM Circuit Breaker Module PCB Printed Circuit Board LS Limit Switch PS Pressure Switch NC Normally Closed NO Normally ...

Страница 7: ...y unpainted or exposed metal surfaces and make sure they are protected with a coating of grease to prevent any corrosion Cover the actuator to prevent damage from site debris 2 1 2 Tools and Materials Required To complete these procedures you will need the following documentation for the Bettis EHO Actuator and items indicated in the table below General Arrangement Drawing Bill of Material Hydraul...

Страница 8: ... actuator is properly mounted to the valve NOTE At this point check to see that when the actuator is mounted to the valve and in its final orientation the outboard end of the power cylinder positioned below the Hydraulic Reservoir Breather If this is not possible contact Bettis for further instructions on piping to elevate the breather See Vertical Mounted Actuator 2 4 4 2 3 2 Check that all mount...

Страница 9: ...Be sure to use appropriately rated crane hoist and straps chains to raise and lower the actuator 2 4 1 G01X G2 and All E Series Actuators 2 4 1 1 Horizontal Pipeline Vertical Stem The small G Series and all E Series actuators mounting on a horizontal pipeline with a vertical valve stem should be supported under the C bracket and a two point attachment for balance A strap may be attached to the sta...

Страница 10: ...b See Figure 2 Figure 2 G01 G3 and all E Series Actuators with Horizontal Pipeline and Horizontal Stem 2 4 2 G3 Series Actuators 2 4 2 1 Horizontal Pipeline Vertical Stem The G3 Series actuator mounting on a horizontal pipeline with a vertical valve stem should be supported at the ends of the drive module A strap may be attached to the stabilization tab on the spring module to balance the unit whi...

Страница 11: ...d crane hoist and straps chains to raise and lower the actuator See Figure 2 above 2 4 3 G4 G7 Series Actuators 2 4 3 1 Horizontal Pipeline Vertical Stem The G4 G7 Series actuators mounting on a horizontal pipeline with a vertical valve stem should be supported using the lift lugs attached to the drive module A strap may be attached to the stabilization tab on spring module to balance the unit whi...

Страница 12: ...d using the lift lugs attached to the drive module A strap may be attached to the stabilization tab on spring module to balance the unit while lifting The weight of the actuator must be supported by the lugs at drive module not the stabilization tab See Figure 5 Figure 5 G4 G7 with a Horizontal Pipeline and Horizontal Stem CAUTION Never lift the actuator with a valve attached Always handle actuato...

Страница 13: ... tab on spring module to balance the unit while lifting The weight of the actuator must be supported by the straps running over the spring module and under the drive module flange Figure 6 Vertical Actuator Lift CAUTION Never lift the actuator with a valve attached Always handle actuator valve assemblies by attaching lifting equipment to the valve only NOTE When a vertical EHO Actuator is mounted ...

Страница 14: ... key and grease it 2 5 9 Carefully align the coupling and key to the bore and keyway in the actuator and slide the actuator onto the coupling until the adapter bracket bottoms out on the valve bonnet NOTE Ensure the adapter seats out on the valve bonnet without interference before installing fasteners 2 5 10 Use the required fasteners to firmly attach the adapter to the valve bonnet Tighten the fa...

Страница 15: ...ked with a green and a red mark When the optional accumulator is drained of fluid and the actuator is at Fail safe Position the oil should be at the green mark The reservoir also has a sight gauge for the purpose of seeing fluid is present Should fluid need to be added or replaced use only factory approved hydraulic fluid This specification covers hydraulic fluids which are approved by engineering...

Страница 16: ...ve equipment including safety glasses 2 8 2 Accumulator Pre charge a Locate Isolation Valve F Nitrogen Blow Down and Fill for the Customer Nitrogen Fill Connection called out on the General Arrangement Drawing and Hydraulic Schematic see illustration below b Close the Isolation Valve F and remove the pipe plug from the adaptor NOTE The Adaptor is tapped with a 1 4 NPTF thread c Ensure 3 way Isolat...

Страница 17: ...ure versus Temperature graph g After the nitrogen filling is complete close the Isolation Valve F Nitrogen Blow Down and Fill h Disconnect the nitrogen supply and remove the female pipe adaptor from Isolation Valve F i Install the straight thread plug and O ring shipped as an accessory into Isolation Valve F NOTE The straight thread plug must be installed after filling is complete to prevent accid...

Страница 18: ...gen pressure gauge G and compare it to the Oil Temperature Chart shown on the General Assembly Drawing for the job being checked e If the pre charge is low add nitrogen to increase the pressure to the requirements listed on the GA Oil Temperature Chart See 2 8 2 Accumulator Pre charge if the pre charge is high relieve pressure to equal the GA Oil Temperature Chart f Record Information below g With...

Страница 19: ...507 32 Rev 1 Section 2 Installation Installation 2 8 4 Nitrogen Pre charge Maintenance Record Serial Number _____________________________ Tag Number _______________________________ Date Initial Pre charge GA Chart Requirement Final Pre charge Nitrogen Leak Test Signed ...

Страница 20: ...ection 3 Electrical Connections 3 1 Remove Separate Terminal Chamber STC Cover WARNING Always verify electrical power is disconnected before removing the STC cover 3 1 1 Remove cover with a strap wrench drift or pinch bar by rotating the cover counterclockwise Figure 8 Remove STC Cover Turning Counterclockwise Figure 9 Lay Cover Aside ...

Страница 21: ...nectors are wire binding screw connectors with rising captive plates Connections can be made one of three ways Strip and connect bare wire Strip and install wire ferrule Strip and install crimp on insulated or non insulated ring or fork tongue connec tors for either M3 control signal terminal block screws or M4 power terminal screws 3 3 1 Loosen terminal block connectors L1 L2 L3 and GND screws wi...

Страница 22: ...re connections are screw size M4 The control connection screw size is M3 3 5 Replace Terminal Chamber Cover 3 5 1 Clean electrical enclosure threads thoroughly and lightly grease with dielectric grease before closing 3 5 2 Replace the cover by reversing the order of the steps to remove the cover 3 6 External Earth Ground Connections External connection points are provided on the operator for attac...

Страница 23: ...actuator can be controlled by discrete inputs two wire control three wire control four wire valve control Connect the power for these discrete inputs as detailed in Figures 13 and 14 See Section 3 3 Electrical Connections for general electrical connection requirements Figure 13 Control Input Wiring Internal Power Supply Figure 14 Control Input Wiring External Power Supply 24 VDC ...

Страница 24: ...omponents labeled on the wiring diagram Numbers in correspond to components labeled on the schematic diagram Information in is descriptive When the Bettis EHO is delivered to the job site it has been both pressure and function tested The oil reservoir was filled to operation level when it shipped from factory 4 1 Preparation 4 1 1 Safety First Hydraulic Pressure WARNING Ensure that test personnel ...

Страница 25: ...and is for illustration purposes only When using this procedure refer to the Bettis EHO Actuator General Arrangement Drawing and Hydraulic Schematic for the unit being worked on 4 2 1 Check to ensure all hydraulic tube fittings are tight Vibration during shipment may have loosened connections 4 2 2 Visually inspect the unit to make sure tubing hand valves gauges and other equipment have not been d...

Страница 26: ... located on the Hand Pump Selector Manifold L 4 4 1 4 Use supplied Hand Pump Handle to discharge hydraulic fluid into the open or close side of the actuator cylinder 4 4 1 5 Continue hand pumping until the actuator completes the open or close stroke and contacts the actuators adjustable end stops 4 4 1 6 Once completion of the Hand Pumping operation push the Pump By Pass Valve located on the top o...

Страница 27: ...n or close side of the actuator cylinder 4 4 2 6 Continue hand pumping until the actuator completes the open or close stroke and contacts the actuators adjustable end stops 4 4 2 7 After completion of the Hand Pumping operation push the Pump By Pass Valve located on the top of the Hand Pump Selector Manifold L and pull the pump handle downward retracting the pump ram into the pump body 4 4 2 8 Rot...

Страница 28: ...ptional E Hydraulic Accumulator With Nitrogen Blanket Charge Optional H Accumulator Isolation Valve Optional N Accumulator Isolation Valve Optional R Pressure Switch Q Hydraulic Pressure Gauge S Pressure Transmitter Optional T Check Valve V Adjustable Flow Controls U Relief Valve O Hand Pump Isolation Valve Optional W Bettis G series Double Acting Actuator AB Pressure Transmitter Optional J Openin...

Страница 29: ...le downward retracting the pump ram into the pump body 4 5 6 Select and push inward the opposite open or close knob located on the Hand Pump Selector Manifold L 4 5 7 Repeat steps 4 5 3 thru 4 5 5 4 5 8 Rotate both Hand Pump Selector Valves M back into the upward vertical position 4 6 Check Rotation NOTE The components referenced below are referencing to schematic found in section 10 2 and is for ...

Страница 30: ...eries hydraulic cylinder W 4 6 8 Shut off the electrical power going to the unit if an optional Circuit Breaker Module is supplied turn the Circuit Breaker to OFF 4 7 Limit Switch Adjustment 4 7 1 To complete limit switch adjustment the actuator will need to be stroked from a fully closed position to a fully open position etc several times In the following instructions the electric motor is used t...

Страница 31: ... it and slide it in a clockwise or counterclockwise direction Figure 20 View of Limit Switch Targets NOTE The Switch Targets will be labeled to identify the switch they operate 4 7 3 2 With the actuator in the Close Position rotated fully clockwise the Target for CLOSE LS 2 will need to be adjusted 4 7 3 3 Reconnect electrical power to the unit 4 7 3 4 Push down on the Target for CLOSE LS 2 and mo...

Страница 32: ...n Both the OPEN and the CLOSE lights on the PBM Pushbutton Module should be illuminated at this point 4 7 4 4 Now push down and slide the Target for OPEN LS 1 clockwise until the CLOSE light just goes out It is important to always adjust a Target in the opposing direction of the valve travel to get an accurate setting 4 7 4 5 With the LOCAL OFF REMOTE Switch set to LOCAL push the CLOSE PUSHBUTTON ...

Страница 33: ...tion 4 8 1 2 Energize the desired solenoid valve J to open the actuator or K to close the actuator 4 8 1 3 Push and release the OPEN CLOSE PUSHBUTTON to start the Electric Motor The Hydraulic Pump Draws Fluid from the Reservoir and discharges fluid thru either the opening solenoid J or the closing solenoid K which ever one is energized 4 8 1 4 Upon completion of the open or close stroke the Pressu...

Страница 34: ...cing Schematic 4 8 2 and is for illustration purposes only When using this procedure refer to the Bettis EHO Actuator General Arrangement Drawing and Hydraulic Schematic for the unit being worked on 4 8 2 1 Ensure both Hand Pump Selection Valves M are in the automatic open position 4 8 2 2 ESD Emergency Shut Down Solenoid Valve P is constantly energized closed 4 8 2 3 Ensure Isolation Valve H is c...

Страница 35: ...customer s control room logic to de energize the solenoids after the actuator stroke open or close is reached Figure 22 2 Way Remote Electric With an ESD Solenoid Function Schematic L Hand Pump Selector M Hand Pump Selection Valves H Accumulator Isolation Valve Optional N Accumulator Isolation Valve Optional J Opening Solenoid K Closing Solenoid O Hand Pump Isolation Valve P ESD Solenoid Valve Opt...

Страница 36: ...operation personnel 5 2 Reservoir The Bettis Self contained Electro Hydraulic Actuator includes a fluid reservoir sized to contain the hydraulic fluid required to operate the actuator cylinder and controls The standard unit has a sight gauge to ensure presence of fluid and a dipstick measure attached to the fill breather cap to more accurately gauge the quantity of fluid contained 5 3 Main Compone...

Страница 37: ...d close solenoid valve items J K AA Suction Strainer T Check Valve U Relief Valve A pressure relief valve is provided to protect the actuator and con trol system from over pressurization caused by the pump or thermal expansion of the hydraulic fluid Q Hydraulic Pressure Gauge R Pressure Switch L Hand Pump Used to manually stroke the actuator open or closed M Hand Pump Selection Valves These two va...

Страница 38: ...en Optional AE Accumulator override valve to close Optional Z Electric Motor AA Suction Strainer I Fluid Reservoir L Hand Pump M Hand Pump Selection Valves M M L H N W AD AE E B A D J X Y Z AA I K O P AC R Q T U V S W Bettis G Double Acting Actuator Z Electric Motor Y Hydraulic Pump I Fluid Reservoir K 3 Way Normally Closed Solenoid Valve for closing the actuator J 3 Way Normally Closed Solenoid V...

Страница 39: ...nsion N Optional Accumulator Isolation Valve Used to isolate the accumulator for repair or maintenance AB Optional Pressure Transmitter Used to transmit the pressure required to stroke the valve over time as a diagnostic feature H Optional Accumulator Isolation Valve This valve allows the hydraulic pressure to by pass back to the reservoir D Optional Isolation Valve Used to blow down or decay the ...

Страница 40: ...tion Note both isolation valves M must be engaged whether hand pumping open or close b Select and push the open or close knob on the hand pump L c Stroke the hand pump L until the OPEN CLOSE stroke is completed d Push the manual relief valve located on the hand pump to retract the pump ram back into the pump body and pull the pump handle down e Upon completion of the OPEN CLOSE hand pump stroke re...

Страница 41: ...ection Isolation Valve M to the pump position NOTE Both Hand Pump Selection Isolation Valves M must be engaged whether hand pumping open or close 2 Select and push the open or close knob on the Hand Pump L 3 Stroke the hand pump until the OPEN CLOSE stroke is completed 4 Push the manual relief valve located on the hand pump to retract the pump ram back into the pump body and pull the pump handle d...

Страница 42: ...shbutton Module consists of the following as shown in Figure 18 Two Pilot Lights OPEN and CLOSE Three Pushbuttons OPEN CLOSE AND STOP Local OFF Remote Selector Knob Figure 25 Pushbutton Module PBM The Pushbutton Module is the interface used to setup and operate the actuator and display valve position To use the Local Control and Selector Knob refer to the following tables ...

Страница 43: ...l Control Mode Function OFF Stop Return position Stop movement Prevents motor operation REMOTE Auto Clockwise Remote control Allows control from remote location LOCAL Hand Counterclockwise Local operation Allows control from the local control knob Table 6 Pushbuttons Pushbutton Local Control Mode Function STOP Stop movement Prevents motor operation CLOSE Actuator moves to close position OPEN Actua...

Страница 44: ...on 2 Ensure the field power wiring is an adequate size 3 Power supply is insufficient 4 Check to see if thermal overload is tripped EHO motor runs but fails to develop sufficient pressure to open the valve 1 Low fluid level in reservoir 2 Wrong motor shaft rotation 3 Hand pump isolation valve O is closed if optional accumulator is provided 4 ESD solenoid is not energized because signal power is in...

Страница 45: ... Division I Groups C and D Group B configuration upon request FM Factory Mutual Certification Class I II and III Groups C D E F G Division I T4 Group B configuration upon request ATEX Directive EExd IIB T4 RoHS Directive This product is only intended for use in large scale fixed installation excluded from the scope of Directive 2011 65 EU on the restriction of the use of certain hazardous substanc...

Страница 46: ...1 9 810 3 66 8 1696 7 4 3 109 2 770 349 G4004 0 53 0 1346 2 35 5 901 7 32 9 835 7 67 8 1722 1 5 3 134 6 783 355 G5004 0 58 3 1480 8 37 4 950 0 34 8 883 9 73 2 1859 3 5 5 139 7 1141 518 G5005 0 59 3 1506 2 38 4 975 4 35 8 909 3 74 2 1884 7 6 5 165 1 1300 590 G7005 0 64 3 1633 2 40 4 1026 2 39 7 1008 4 81 6 2072 6 6 8 172 7 1786 810 G7008 0 65 3 1658 6 41 4 1051 6 40 7 1033 8 82 6 2098 0 7 8 198 1 1...

Страница 47: ...2 Way Electric Powered By an Electro Hydraulic Power Unit Q Hydraulic Pressure Gauge R Pressure Switch S Pressure Transmitter Optional T Check Valve U Relief Valve V Adjustable Flow Controls W Bettis G series Double Acting Actuator J Opening Solenoid K Closing Solenoid X Shuttle Valve Optional Y Hydraulic Pump Z Electric Motor AA Suction Strainer I Fluid Reservoir L Hand Pump M Hand Pump Selection...

Страница 48: ...mulator With Nitrogen Blanket Charge Optional H Accumulator Isolation Valve Optional N Accumulator Isolation Valve Optional R Pressure Switch Q Hydraulic Pressure Gauge S Pressure Transmitter Optional T Check Valve V Adjustable Flow Controls U Relief Valve O Hand Pump Isolation Valve Optional W Bettis G series Double Acting Actuator AB Pressure Transmitter Optional J Opening Solenoid K Closing Sol...

Страница 49: ...le upon request for problems which our customers do not wish to handle If the requirement should arise please feel free to contact Emerson Actuation Technologies Inc 19200 Northwest Freeway Houston TX 77065 T 1 281 477 4100 F 1 281 477 2809 ...

Страница 50: ......

Страница 51: ...ecifications of our products at any time without notice NORTH SOUTH AMERICA 19200 Northwest Freeway Houston TX 77065 T 1 281 477 4100 F 1 281 477 2809 Av Hollingsworth 325 Iporanga Sorocaba SP 18087 105 Brazil T 55 15 3238 3788 F 55 15 3228 3300 ASIA PACIFIC No 9 Gul Road 01 02 Singapore 629361 T 65 6777 8211 F 65 6268 0028 No 1 Lai Yuan Road Wuqing Development Area Tianjin 301700 P R China T 86 2...

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