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Summary of Contents for KRAL OMH Series
- Page 1 Operating instructions KRAL flowmeters. Series OMH OIO 08en-GB Edition 2020-01 Original instructions www.kral.at...
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Page 2: Table Of Contents
Table of contents 1 About this document ............. 4 Dangers during removal.......... 23 General information ............ 4 Installing the flowmeter .......... 23 8.3.1 Protecting the flowmeter against soiling .. 23 Target groups .............. 4 8.3.2 Installation types.......... 23 Symbols................. 4 8.3.3 Installation recommendation...... 24 1.3.1 Danger levels ............ 4 8.3.4 Installing the flowmeter........ 25 1.3.2... - Page 3 Table of contents 16.2 Tightening torques for screw plugs with thread meas- ured in inches and elastomer seal....... 45 16.3 Tightening torques and widths for threaded rings .. 46 16.4 Contents of the Declaration of Conformity.... 46 Operating instructions OIO 08en-GB Edition 2020-01...
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Page 4: About This Document
1 About this document 1.1 General information 1 About this document 1.1 General information These instructions form part of the product and must be kept for future reference. Furthermore please observe the associated documents. 1.2 Target groups The instructions are intended for the following persons: o Persons who work with the product o Operator-owners who are responsible for the use of the product Persons who work with the product must be qualified. -
Page 5: Danger Signs
2 Safety 1.4 Associated documents 1.3.2 Danger signs Meaning Source and possible consequences of non-observance Electrical voltage Electrical voltage causes serious physical injury or death. Raised load Falling objects can result in serious physical injury or death. Heavy load Heavy loads can result in serious back problems. Risk of slipping Discharging pumped liquid and oils on the foundation or tread surfaces can cause falls with serious physical injury or death. -
Page 6: Foreseeable Misuse
3 Identification 2.2 Foreseeable misuse 2.2 Foreseeable misuse o Any use that extends beyond the proper use or any other use is misuse. o The product is not suitable for pumping liquids outside the operational limits. o Any bypassing or deactivation of safety equipment during operation is prohibited. 2.3 Obligations of the operator-owner The operator-owner is the person who operates the product commercially or permits a third party to use it and who bears the legal responsibility for the product, the protection of the personnel and third... - Page 7 3 Identification 3.1 Type code Item Designation Description Series Economy General/Universal High Pressure Performance Stainless steel Size Corresponds to the diameter of the measuring screw large in [mm] Sensor equip- BEG 06 ment (pick up) BEG 43 BEG 44 BEG 45 BEG 45 + BEV 13 BEG 47 BEG 53...
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Page 8: Rating Plate
4 Technical data 3.2 Rating plate 3.2 Rating plate 1 Serial number 2 Construction year 3 K-factor 4 Preferred flow direction 5 Max. temperature 6 Series 7 Max. pressure Fig. 2: Rating plate 4 Technical data 4.1 Operating limits The values specified on the rating plate and the calibration certificate apply. The permissible operating limits of individual values influence each other so that every application is checked individually by the manufacturer when selecting the flowmeter. -
Page 9: Substitute Operating Data
4 Technical data 4.4 Substitute operating data Unit Additional maximum values when BEG 44 is used Pole number K-factor [P/l] 2432 1280 79.6 33.6 Millilitre/pulse [ml/P] 0.41 0.78 2.14 7.04 12.56 29.76 Pulse frequency o f2 (Q [Hz] 1170 1243 1393 1680 o f2 (Q... -
Page 10: Dimensions And Weights
4 Technical data 4.6 Dimensions and weights 4.6 Dimensions and weights 4.6.1 Pipe thread (BSPP thread) M18x1 Pipe thread M18x1 Pick up hole Outer diameter Total length Length of the flowmeter without connections Max. screw-in depth Fig. 4: Dimensional drawing pipe thread connection Unit [inch] 1 1/2... -
Page 11: Sae Flange
4 Technical data 4.6 Dimensions and weights 4.6.3 SAE flange M18x1 Nominal diameter flange M18x1 Pick up hole Outer diameter Total length Length of the flowmeter without connections Flange thickness Fig. 6: Dimensional drawing SAE flange connection Unit [inch] 1 1/2 Class 6000 6000 6000... -
Page 12: Pressure Bearing Capacity
4 Technical data 4.7 Pressure bearing capacity 4.7 Pressure bearing capacity 4.7.1 Pressure bearing capacity OMH-013 100000 5000 2000 50000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 5000 2000 1000 Short-term operation Continuous operation Pressure loss Flow rate rated... -
Page 13: Pressure Bearing Capacity Omh-020
4 Technical data 4.7 Pressure bearing capacity 4.7.2 Pressure bearing capacity OMH-020 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 1000 5000 2000 10,5 13,5 Short-term operation Continuous operation Pressure loss Flow rate rated Notice The values apply for lubricating liquids at temperatures up to 120 °C. -
Page 14: Pressure Bearing Capacity Omh-032
4 Technical data 4.7 Pressure bearing capacity 4.7.3 Pressure bearing capacity OMH-032 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 1000 5000 2000 Short-term operation Continuous operation Pressure loss Flow rate rated Notice The values apply for lubricating liquids at temperatures up to 120 °C. -
Page 15: Pressure Bearing Capacity Omh-052
4 Technical data 4.7 Pressure bearing capacity 4.7.4 Pressure bearing capacity OMH-052 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 1000 10000 5000 2000 17,5 52,5 87,5 122,5 157,5 Short-term operation Continuous operation Pressure loss Flow rate rated... -
Page 16: Pressure Bearing Capacity Omh-068
4 Technical data 4.7 Pressure bearing capacity 4.7.5 Pressure bearing capacity OMH-068 100000 50000 10000 5000 2000 1000 1000 h 5000 h 10000 h 30000 h 1050 100000 50000 10000 5000 2000 1000 Short-term operation Continuous operation Pressure loss Flow rate rated Notice The values apply for lubricating liquids at temperatures up to 120 °C. -
Page 17: Pressure Bearing Capacity Omh-100
4 Technical data 4.7 Pressure bearing capacity 4.7.6 Pressure bearing capacity OMH-100 100000 50000 10000 5000 2000 1000 1000 h 5000 h 10000 h 30000 h 1000 1200 1400 1600 2400 2600 3000 1800 2000 2200 2800 100000 50000 10000 5000 2000 1000... -
Page 18: Function Description
5 Function description 5.1 Structure 5 Function description 5.1 Structure Fig. 7: Structure of the flowmeter Connection Measuring screw large Bearing cover Ball bearing fixed bearing end Measuring housing Pick up hole Measuring screw small Pole wheel Ball bearing floating bearing end 5.2 Functional principle Flowmeters belong to the group of rotating displacement meters as screw meters. -
Page 19: Signal Generation
The flow direction can be determined by means of the additional phase-shifted signal and the incre- mental encoder positions available in the KRAL electronic unit and then taken into account for the cal- culation of the total values. Operating instructions... -
Page 20: Transportation, Storage
6 Transportation, storage 6.1 Dangers during transportation 6 Transportation, storage 6.1 Dangers during transportation The following safety instructions must be observed: o Have all work only carried out by authorized transport personnel. o Use intact and correctly dimensioned hoisting equipment. o Ensure that the means of transport is in a flawless state. -
Page 21: Storing The Flowmeter
7 Preservation 6.5 Storing the flowmeter Fig. 8: Fastening of hoisting equipment - principle diagram Fasten hoisting equipment on the flowmeter. Transport the flowmeter to the installation location or temporary storage site. 6.5 Storing the flowmeter As a result of the calibration, the internal components of the flowmeter are wetted with calibration liquid that has a preservative effect. -
Page 22: Preserving The Inner Surfaces
7 Preservation 7.2 Preserving the inner surfaces 7.2 Preserving the inner surfaces o Trained personnel Personnel qualification: o Work clothing Personal protective equipment: o Protective gloves o Safety boots Aids: o Preservative (acid-free and resin-free oil) Close a connection of the flowmeter with a blind flange. Position the flowmeter vertically. -
Page 23: Installation, Removal
8 Installation, removal 8.1 Dangers during installation 8 Installation, removal 8.1 Dangers during installation The following safety instructions must be observed strictly: o Have all work only carried out by authorized qualified personnel. o Do not take apart the flowmeter. o Do not remove the protective caps from the dry sleeves. -
Page 24: Installation Recommendation
8 Installation, removal 8.3 Installing the flowmeter Fig. 9: Installation types The arrow with dashed line identifies the preferred flow direction when an operating filter is used. Installation type Properties o Without bypass o Small space requirements o With or without operating filter o Dismantling of the flowmeter only with operation interruption o Manual bypass... - Page 25 8 Installation, removal 8.3 Installing the flowmeter Recommendations for alternative installation variants Alternative installation variant: Source for measuring error: - Install the flowmeter vertically. - Lack of counter-pressure at the outlet through downward routin - Route the flow from the top downwards. - Route the piping at the outlet upwards.
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Page 26: Removing The Flowmeter
9 Connection 8.4 Removing the flowmeter 8.4 Removing the flowmeter o Fitter Personnel qualification: o Electrician o Work clothing Personal protective equipment: o Face protection o Protective gloves o Safety boots Aids: o Collection tank DANGER Risk of death resulting from electric shock. ►... -
Page 27: Connecting The Flowmeter To The Pipe System
9 Connection 9.2 Connecting the flowmeter to the pipe system 9.2 Connecting the flowmeter to the pipe system o Fitter Personnel qualification: o Work clothing Personal protective equipment: o Protective gloves o Protective helmet o Safety boots Aids: o Hoisting equipment ATTENTION Damage to device through mechanical stress. -
Page 28: Connecting The Pick Up
10 Operation 9.3 Connecting the pick up 9.3 Connecting the pick up The flowmeter is equipped with two pick ups to enable recognition of the flow direction. The first signal measures the flow rate, the second signal determines the flow direction. In order to obtain correct val- ues the pick ups must be connected correctly. -
Page 29: Checking The Function
10 Operation 10.3 Decommissioning 10.2.2 Checking the function Check the flow direction of the flowmeter. Check the installation and installation position of the pick up and of the temperature sensor. Check leaks at the pipe thread/connecting flange. Check the electrical installation. Observe the operating instructions for pick up and electronic unit. Check the power supply. -
Page 30: Recommissioning
11 Maintenance 10.4 Recommissioning 10.4 Recommissioning 10.4.1 Recommissioning the flowmeter ATTENTION Damage to device through hard, gummy or crystallized pumped liquid in the flowmeter. ► Before recommissioning, ensure that there is no hard, gummy or crystallized pumped liquid in the flowmeter. -
Page 31: Recalibration Of The Flowmeter
12 Servicing 11.3 Recalibration of the flowmeter 11.3 Recalibration of the flowmeter In order to maintain the high measuring precision of the flowmeter, the manufacturer recommends car- rying out the first recalibration after about one year of operation. The results reveal any wear starting on the measuring unit. -
Page 32: Removing Seals And Ball Bearings Omh-020/Omh-032
12 Servicing 12.2 Replacing seals and ball bearings 12.2.2 Installing seals and ball bearings OMH-013 Personnel qualification: o Fitter o Work clothing Personal protective equipment: o Protective gloves o Safety boots o Torque wrench Aids: Slide the sleeve 11 onto the measuring screw large 12. Observe the installation direction. Press on the ball bearings 10 and 13 over the inner ring of the ball bearing onto the measuring screw large 12. -
Page 33: Installing Seals And Ball Bearings Omh-020/Omh-032
12 Servicing 12.2 Replacing seals and ball bearings 10 11 Take off the bearing cover 2 and remove the O-ring 5. Remove the O-ring 3 and support ring 4 via the hole in the middle of the bearing cover 2. Remove the screw set together with the distance sleeve 6 from the measuring housing 1. Remove the circlip 15 from the measuring screw large 13 and remove the circlip 16 from the measuring screw small 18. -
Page 34: Removing Seals And Ball Bearings Omh-052/Omh-068
12 Servicing 12.2 Replacing seals and ball bearings Carefully slide the screw set into the measuring housing 1. Slide the distance sleeve 6 into the hole of the measuring screw small 18. Insert the support ring 4 and O-ring 3 via the hole in the middle of the bearing cover 2 in the pick up hole. -
Page 35: Installing Seals And Ball Bearings Omh-052/Omh-068
12 Servicing 12.2 Replacing seals and ball bearings Use an extractor to take out the distance ring 18 and pull the angular-contact ball bearings 17 and 27 out of the bearing cover 3. Remove the circlip 22 and support ring 21 from the measuring screw large 19 and pull off the ball bearing 20 using an extractor. -
Page 36: Removing Seals And Ball Bearings Omh-100
12 Servicing 12.2 Replacing seals and ball bearings Press in the angular-contact ball bearings 17 and 27 in X-layout via the outer ring of the ball bear- ing in the bearing cover 3. Place the distance ring 18 onto the angular-contact ball bearing 17. Press the ball bearing 20 over the inner ring of the ball bearing onto the measuring screw large 19. - Page 37 12 Servicing 12.2 Replacing seals and ball bearings Drive the screw set together with the bearing cover 2 out of the measuring housing 1 using light blows of a plastic hammer and pull out. Remove the O-ring 3 from the bearing cover 2. Loosen the circlips 12 and 21 out of grooves in the bearing cover 2. 19 18 25 24 10 11...
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Page 38: Disposal
13 Disposal 13.1 Dangers during disposal Press on the ball bearings 10 and 14 over the inner ring of the ball bearing onto the measuring screw large 13. Press on the ball bearings 23 and 19 over the inner ring of the ball bearing on the measuring screw small 20. -
Page 39: Troubleshooting
14 Troubleshooting 14.1 Possible faults Faults can have different causes. The following tables list the symptoms of a fault, the possible causes and measures for troubleshooting. In the case of faults please contact the manufacturer. Under services@kral.at. Identifica- Fault tion... - Page 40 14 Troubleshooting 14.2 Troubleshooting Fault Cause Remedy identification – – – – 5 Outgassing Increase the system pressure. Reduce the temperature. – – – – 5 Pulsations too high Use another feed pump. Carry out changes to the system. – – – – 5 Back pressure too low Increase the back pressure.
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Page 41: Spare Parts
15 Spare parts 15.1 Overview OMH-013 15 Spare parts 15.1 Overview OMH-013 107.2* 739.4 107.1* 739.3 915.5 739.1 080.1 915.1 817.4 672.2 817.3 739.5** 468** 817.2 672.1 817.1 Item No. Part Item No. Part Distance sleeve 739.1 O-ring Sleeve 739.3 O-ring Spacer 739.4... -
Page 42: Overview Omh-020/032
15 Spare parts 15.2 Overview OMH-020/032 15.2 Overview OMH-020/032 107.2* 107.1* 739.4 739.3 915.5 739.1 080.1 468** 739.5** 817.4 869.4 672.2 817.3 904.2 064.2 915.7 869.2 672.1 817.2 817.1 904.1 064.1*** 915.6 Item No. Part Item No. Part Distance sleeve 739.4 O-ring Distance ring... -
Page 43: Overview Omh-052/068
15 Spare parts 15.3 Overview OMH-052/068 15.3 Overview OMH-052/068 107.2* 915.4 739.4 107.1* 739.3 915.3 915.5 915.2 080.2 739.2 739.1 080.1 915.1 869.4 817.2 868.4 672.2 057.2 818.2 064.2 739.5** 468** 915.7 869.2 817.1 868.2 672.1 904.1 057.1 818.1 915.6 Item No. -
Page 44: Overview Omh-100
15 Spare parts 15.4 Overview OMH-100 15.4 Overview OMH-100 915.4 107.2* 739.4 739.3 107.1* 915.3 597.2 080.2 915.2 739.2 597.1 739.1 080.1 915.1 868.4 869.4 817.2 672.2 870.2 821.2 904.2 868.3 064.2 739.5 869.2 915.7 817.1 868.2 672.1 868.1 870.1 821.1 259 056 904.1... -
Page 45: Appendix
16 Appendix 16.1 Tightening torques for screws with metric screw threads with and without wedge lock washers Item No. Part Item No. Part 739.2 O-ring 915.2 Socket screw 739.3 O-ring 915.3 Socket screw 739.4 O-ring 915.4 Socket screw 739.5 O-ring 915.6 Socket screw 817.1... - Page 46 16 Appendix 16.3 Tightening torques and widths for threaded rings 16.3 Tightening torques and widths for threaded rings Size Threaded ring/ Item No. Width [mm] Tightening torque [Nm] measuring screw Large 057.1 Small 057.2 Large 057.1 Small 057.2 Tab. 18: Tightening torques and widths for threaded rings 16.4 Contents of the Declaration of Conformity The products described in these instructions are machinery in the sense of the Directive 2006/42/EC.
- Page 47 Notes Operating instructions OIO 08en-GB Edition 2020-01...
- Page 48 KRAL GmbH, 6890 Lustenau, Austria, Tel.: +43/5577/86644-0, E-Mail: kral@kral.at www.kral.at...
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