user manual of dh800 vortex flow meter
Contents
1. Press the to confirm the your data entires and proceed to next pgup pgdn such as to change setting of Fr PE C dE Ur dEn U Lr FH FL Press and hold down C key for longer than 3 seconds to save the new setting and return main status or else the setting is null If you do not press any key within 3 minutes following return to the main status 10 2 5 Reset cumulant Zero cumulative flow rate adjustment Under state of setup Set the correction coefficients of the Un Un 0 110000 Press the to confirm the your data entires Cumulative flow rate is resetted Un 0 110000 10 2 6 Calibration of output current signals except Type A The flowmeter can set the Maximum Output current signals 20mA and Minimum Output current signals 4mA Meter Operation Under State of setup Press the step by step to display 21 At last the display contents is 1 1 3329 000 T This is Maximum Output current signals 20mA 2 oUL 666 0000 This is Minimum Output current signals 4mA For most applications these factory settings are ideal and should not require adjust ment by the user 10 2 7 Electrical connection 1 Electrical amplifier board S T terminal for transmitter electrical signal 2 Electrical converter board Model Version A Inner 3 6V Li Battery V DC12V DCI2V power supply B DCI2V DCI2V power supply 3 6V 3 6V Li Battery B 3 6V 3 62. w Minn T 16 7 m m m m 26 CI ME ae 2690 5220 Minn 522 DN125 Maxm 7070 26622 Maxn 4400 7830 Minn 783 DN150 Maxm 10182 12094 38341 Maxn 4840 5380 5860 10440 Minn 1044 DN200 Maxm 11197 14669 18101 21499 24870 28227 31570 34907 41553 51557 68159 Maxn 9690 10760 11730 20890 Minn 969 1076 1173 2089 EL 1 747 815 1044 n 1 250 naa 404 2201021 DN200 Maxm 11197 14669 1 101 21499 24870 28227 31570 34907 41558 51557 6859 Maxn 9600 1 760 11730 12620 13440 14210 14950 16310 18150 20890 Mm we 103 1944 wm 1495 185 2089 ES DN250 Maxm 17494 22919 2 281 33589 38856 44101 49324 54538 64922 80551 106490 00 DN400 44792 58682 72410 86002 99486 112915 126290 139638 166226 206242 272657 Maxn 38100 43610 48440 52790 56780 60490 63970 67270 73390 81750 94000 Min 43 660 6727 7339 805 DN450 Maxm 56689 74269 91643 108845 125910 142906 159834 176727 210377 261022 345077 Mam 4450 50870 550 61590 66240 70570 74620 73470 85620 95970 109660 Min 4
3. 40 95 14 180 345 65 4514 20 16 40 105 16 180 350 75 4 14 25 16 ox 115 16 180 350 85 4514 32 16 40 140 18 180 350 100 4 18 40 L6 40 150 18 180 350 110 4 18 50 L6 40 165 20 200 355 125 4 18 65 1 6 185 22 200 362 145 4 18 80 1 6 200 24 200 370 160 8 18 100 1 6 235 26 250 380 190 8 18 125 1 6 270 28 250 390 220 8 18 150 1 6 300 30 300 405 250 8 22 200 1 6 375 36 350 432 320 12 22 13 250 1 6 450 42 400 460 385 12526 300 1 6 515 48 500 484 450 12526 350 1 6 580 55 550 510 510 16726 400 1 6 660 60 600 534 585 16 30 450 1 6 685 66 600 560 610 20 30 500 1 6 755 72 600 584 670 20 33 600 1 6 890 84 600 634 795 20 36 P pressure under working condition unit Mpa Note 1 Wafer version vortex flowmeter assemble made to order flanges when flowmeter leave factory 1 ncluding companion flanges reference B we are able to provide GB China ANSI DIN JIS a nd etc pressure class recommend priority level 2 If the temperature of the measured medium rather than 150 H H 75 radiator is installed Installation Instruction 7 1 Straight length requirement In order to correct measurement upstream or downstream of flow meter should obligate enough straight length No components to effect fluid velocity in upstream of flow meter All types of straight length installation reference Vortex Flowmeter Straight Length Size Drafts Fig 7 1 concentric two 90 elbows reducer 2_Dimensional full open concentric diffuser
4. Battery 3 6VDC 5Ah gt 2 years service life 4 12 Resistance coefficient Ca 2 4 4 13 Amospheric pressure 86kPa 106kPa 4 14 Ambient temperature 40 C 55 C humidity lt 90 RH 4 15 Explosion proof class Intrinsic safety Exia II CT 1 4 Flame proof Exd II CT 1 4 4 16 Protection grade IP65 IP68 1 68 supply by negotiation 5 Measuring range Model Selection Parameters Model Selection LUGB Pipeline version Vortex Flowmeter DH900 A B D E F A Pipelined Vortex Flowmeter Connection amplifier and sensor 1 flange Connection P T compensation required 2 wafer Connection Priority B Measurable medium 1 Gas Liquid Steam 2 Liquid 3 Gas 4 Saturated steam amp superheated steam C Diameter of Vortex Flowmeter DN mm 15 20 25 32 40 50 65 80 100 125 200 250 300 350 400 450 500 600 D Explosion proof class null without explosion proof certificate and its protection level IP65 IP67 IP68 B intrinsic safety Exia CT4 Exib CT4 2 flame proof Exd II CT6 E Signal output Null voltage pulse 12 24VDC C 4 20mA LCDstatus display 24VDC D without signal output and status display 3 6V Li Battery F Measurable pressure class Null 1 6MPa 2 2 5Mpa 4 4 0Mpa G Meter body material Null SUS304 M SUS316 L SUS316L H Flange material Null carbon steel S SUS304 Order Notice Diameter DN mm Name of liquid Chemical characteristics Velocity scope of
5. instantaneous flow rate less than the setting valve instantaneous flow rate is 0 00000 not cumulative 12 Note if flow rate unit kg then flow coefficient U Hz dm3 10 2 3 Displays the measuring range of instantaneous flow right LCD bar upper limit setting upper limit flow rate 10 2 4 Operating Elements The transmitter is operated by using pushbuttons keys and the local display This enables individual functions to be selected and parameters or values to be entered Button Key left key Q middle key F right key C state of Working cumulative flow rate vortex frequency item 20 instantaneous flow rate Hz state of setup selected Q F C set parameters enter or pgup pgdn 1 State of Working Press the Q to display instantaneous flow rate and cumulative flow rate Press the F to display vortex frequency Press the C step by step to display Fr PE C dE Ur dEn U Lr FH FL etr 2 State of setup Press the Q to modify setting for present position flicker bit Press the F to modify setting for present number flicker bit Press the C to confirm your data entires and pgup pgdn 3 Operation Press and hold down C key for longer than 3 seconds Statepof setup density Ur flicker Press the Q to modify setting for present position flicker bit Press the to modify setting for present number flicker bit
6. no required 7 5 Try to avoid strong shock pipeline or take some measures of shock absorption It should be av oided to install the Vortex diameter to long overhead pipes as the drooping of the transmitter can easily cause the seal leakage between flange and itself if there is no alternative but to install the t ransmitter to long overhead pipes pipeline clamp devices must be set at 2D upstream and downstre am of the transmitter 7 6 Try to avoid high temp thermal source and source of radiant heating outdoor insta ll ation should do some measures of sun shading and rain shelter 7 7 Grounding requirement 15 When pipelines without available grounding conditions a ground wire is essential between housin g and earth 7 8 Try to avoid shock places and corrosion environment considered 3 meanwhile easy maintenance should 7 9 If it needs to measure the pressure and temperature around the flow transmitter the pressure m easuring point should be at over 2D 5D downstream of the transmitter and the temperature measuring point should be at over 5D 7D downstream of the transmit ter pressure transmitter Pt100 temperature flow meter transmitter Mortex Flowmeter Straight Length Size Drafts Fig 7 1 7 10 After initial installation when medium is steam or other high temp medium flanges amp bolts sh ould be re tightened when medium full of pipeline Do heat reservation mea sures for pipeline in order
7. to protect amplifier 8 Connection of Meters 8 1 Three wire system circuit connection flow totalizer RVVP30 75 8 Mit Three wire system circuit connection 8 1 1 power supply and output signal terminals Use the Three wire shielded cable RVV P 3 0 75 8 1 2 External 12VDC power source 8 1 3 When the terminal of the meters are connected to external power so urces the circuit begins to work the battery powered type changes into the state of power on and the pulse output is drawn out from meters 8 2 Two wire system circuit connection which displays the instantaneous flow rate and cumulative flow rate measurement on the spot RVYP290 158 MLS ine b x nias ef 7 5 13 DCS A ngo 64 3 0 75 bd 4 20mA status display 8 2 1 Main power supply and output signal terminals Use the Two wire shielded cable RV 2 0 75 8 2 2 External 24VDC power source 8 2 3 When the terminal of the meters are connected to external power sour ces the circ uit begins to work the battery powered type changes into the state of power on and the 4 20mA cu trent output is drawn out from meters 9 Attentions 9 1 Dryness of saturated steam gt 85 If the liquid impurities regular cleaning 9 2 Try to avoid strong power equipment high frequency equipment and strong power switchge ar 9 3 If a valve is installed ne
8. 180 4118 600 61042 52700 5270 Note the density of superheated steam in working conditions reference thermo technical handbook by temperature and pressure 6 EXTERNAL DIMENSIONS A Wafer version type A B Flanged version type B 6 1 Dimensions of Wafer version mm type A DN DLL H type B D1 D0 C n d 12 DN DI L H DI n d 15 85 78 345 148 118 20 4 18 20 85 65 350 148 118 20 4 18 25 85 65 350 148 118 20 4 18 32 85 65 350 148 118 20 4 18 40 85 65 350 148 118 20 4 18 50 95 80 355 155 125 20 4 18 65 105 80 362 172 142 20 4 18 80 120 80 370 180 150 20 4 18 100 140 100 380 200 170 25 4 18 125 160 110 390 224 194 25 6 18 150 185 150 405 265 225 27 6 22 200 245 165 432 313 277 30 8 22 250 295 200 460 375 331 32 10 26 300 345 200 484 425 381 35 10 26 350 395 230 510 475 431 35 16 26 400 445 230 534 525 481 35 16 26 450 500 280 560 580 536 45 16 30 500 550 320 584 635 591 45 16 30 600 650 360 634 745 701 60 20 30 Note 1 Wafer version vortex flowmeter assemble made to order flanges when flowmeter leave factory including companion flanges reference type B we are able to provide GB China ANSI DIN JIS and pressure class recommend priority level 2 If the temperature of the measured medium rather than 150 H H 75 radiator 18 installed 6 2 Dimensions of Flanged version mm type A DN D1 L H type B D1 D0 C n d DN H DO n od 15 L6
9. 3 Dimensional one 90 elbow x semi open or T piece valve Fig 7 1 Reducer pipe Ensure the upstream straight pipe length to be 15D or more and the downstream st raight pipe length to be 5D or more for per reducer 14 Expander pipe Ensure the upstream straight pipe length to 25D or more and the downstream st raight pipe length to be 5D or more for expander pipe Valve position and straight pipe length In case the valve has to be installed on the upstream of th flowmeter ensure the upstream straight pipe length to be 50D more the downstream straight pipe length be 5D or more 7 2 Vortex diameter is accordant to upstream and downstream tubing diameter at installation point sensor is concentric with pipeline prohibit gaskets between sensor and flanges bulge out into pip eline Make sure that the connection end face of insertion version Wafer type vortex flowmeter parallel to the pipe axis Details as No No 2 External welding only RNAB External welding only Rob eB External welding only only wall No 1 wafer version installation No 2 flange connection installation 7 3 use our special gaskets for Vortex diameter Fit a gaskets inside the groove of the flang 7 4 Horizontal vertical and slanting installation Liquid measuring ensure flow direction from low to high Gas measuring direction
10. 5 5087 sos 6624 707 7463 9597 10906 0 500 Maym 69986 91690 113139 134376 155444 176427 197325 218181 259724 322249 426020 Man 52910 60560 67280 73320 78860 84010 88940 93430 101930 113540 130550 Min s 6 ome 792 7886 ss 9943 10199 11354 1865 DN600 100780 132033 162921 193503 223841 254057 284151 314186 374004 464041 613472 Maxn 67710 77510 86100 93830 100920 107510 113700 119560 130460 145300 167070 Min err 75 10092 10751 11970 11956 19045 14530 16707 11 Note Absolute pressure MPa T Temperature D Density kg m3 Maxm Max measurable flow kg h Max normal work flow kg h Minn Min normal work flow kg h 5 4 Superheated steam DN Max measurable Max normal work Min normal orkflow mm Flow kg h Flow kg h kg h 15 382x p 49 5x p 8 24x p 20 67 8x p 79x p 9 88x p 25 106x p 104x p 13 12x p 32 174x p 184x p 23x p 40 271x p 265x p 26 65x p 50 424x p 494x p 49 41x p 65 716x p 823x p 82 35x p 80 1085x p 1153x p 115 3x p 100 1696x p 1647x p 164 7x p 125 2649x p 2471x p 247 150 3815x p 3294 p 3294x p 200 6782x p 6588x p 658 8x p 250 10596x p 9882x 9882x p 300 15260x p 16470x p 1647 350 20771x 24710 2471 400 27130 29650 2965 450 34336 34590 3459 500 42390 41
11. DH800 serise Vortex Flowmeter Reliable flow measurement of gas steam and liquids Operating Instruction CONTENTS 1 Summary 1 2 The working principle 1 3 Main characteristics 4 3 1 Simple structure 3 2 Series DN25 DN600 3 3 Two wire output current pulse three wire 3 4 Intelligent 3 5 Built in 4 Technical parameters 4 4 1 Normal diameter DN 4 2 Connection type 4 3 Normal pressure 44 Medium temperature 4 5 Accuracy 4 6 Meter material 4 7 Medium 4 8 Medium viscosity 4 9 Velocity scope of flow 410 Output signal 4 11 Working Power Supply 4 12 Resistance coefficient 4 13 Atmospheric pressure 4 14 Ambient temperature 4 15 Explosion proof class 4 16 Protection grade IP65 IP68 5 Measuring range Model Selection Parameters 5 1 Gas Air 5 2 Fluid liquid 5 3 Saturated steam 5 4 Superheated steam 6 External dimensions 6 1 Dimensions of Wafer type mm 6 2 Dimensions of Flanged type mm 7 Installation Instruction 7 1 Straight length requirement 7 2 Vortex diameter 7 3 use our special gaskets 7 4 Horizontal vertical and slanting installation 7 5 Try to avoid strong shock pipeline 7 6 Try to avoid high temp thermal source 7 7 Grounding requirement 7 8 Try to avoid shock places and corrosion environment 7 9 If it needs to 8 Connection of Meters 8 1 Three wire system circuit connection 8 2 Two wire system circuit connection 9 Attentions 9 1Measurement of Medium 9 2 Try to avoid 9 3 If a valve is i
12. Li Battery GND Ground of output frequency FOUT Output frequency T Input platinum resistance signal 1 Pt100 T Input platinum resistance signal 2 Pt100 Model Version B 4 20mA 24 DC24V DC24V power supply 24 DC24V DC24V power supply GND Output frequency of electrical amplifier board with 24V terminal isolation connected with the other GND FOUT Output frequency T Input platinum resistance signal 1 Pt100 T Input platinum resistance signal 2 Pt100 22 FIN Input frequency of electrical amplifier board GND supply electrical amplifier board with DC power negative pole 5V supply electrical amplifier board with 5VDC 10 2 8 Note 1 IF instantaneous flow rate lower than the FL LCD no display 2 Connect shield to the ground in the transmitter housing and keep as sh ort as possible 3 Electrical amplifier board type has two groups of dial switches Trigger level Sensitivity 4 Ambient temperature of LCD 0 C 50 C unless special order 10 3 Explosion proof 1 Sensor installed in dangerous area and converter installed in safe area Exia II 4 Using safety grid reference the safety grid manual 23 Strong Sunshine Prevention m Keeping Away from Leaking Keeping Far Away from Fire The correct installation flowmeter 24
13. al parameters 4 1 Normal diameter DN mm 15 20 25 40 50 80 100 125 150 200 250 300 350 400 450 500 600 5 4 2 Connection type Wafer connection or Flanged connection 4 3 Normal pressure Mpa 1 6 2 5 4 0 level the other pressure class recommend priority or supply agreement 4 4 Medium temperature 1 40 C 150 2 40 250 3 40 350 4 40 C 425 C 4 5 Accuracy liquid 1 of reading gas and steam 1 5 of reading 4 6 Meter material the casing of the transmitter is made in aluminum alloy the material of contacting medium SUS304 SUS316 SUS316L HC 276 or other special materials according to customers requirement 4 7 Medium liquid gas including natural gas steam saturated steam and superheated steam etc 4 8 Medium viscosity Range of Reynolds numbers normally 20000 7000000 extensionally 8000 7000000 4 9 Velocity scope of flow Liquid 0 30 m s 7 m s gas 3 0 m s 60 m s steam 3 0 m s 70 m s 4 10 Output signal Two versions are available 1 Remote version three wire voltage pulse supplier agreement lower PWL IV higher PWL gt 6V lower 0 1V 1 5V 2 compact version status display instantaneous flow rate cumulative flow rate output 4 20mA signal 4 11 Working Power Supply 1 voltage pulse output without status display Type three wire voltage pulse output AC220V 2 status display Type two wire 4 20mA output DC 24V 3 status display Type Li
14. alculation formula 1 The calculation of the mass flow under instantaneous condition F 3 6 Fr De U instantaneous flow rate frequency De refers to the density of the measured medium U flow rate coefficient 2 FL FL F amp T integral FL Kg M3 cumulative flow rate Kg M instantaneous flow rate T cumulative time 10 2 2 Notes on the LCD optional digital display The two line LCD shows measured values dialog texts fault messages and notice messages 1 main status working status displays the instantaneous flow rate and cumulative flow rate measurement Q 1234 5 instantaneous flow rate t h 5 digital value cumulative flow rate t 8 digital value 1234567 8 2 displays the vortex frequency Hz Fr vortex frequency values 204 6 3 displays the output current mA PE 4 4500 Note Version A without current signal output 4 displays the temperature 120 0 5 displays the density compensation dE 2 0000 6 displays the approaches of density compensation Ur 2 000000 Ur 1 00 setting density Ur 3 00 density of temperature compensation 7 displays the setting density dEn 2 000000 8 displays the flow coefficient 2 450000 9 displays the damping coefficient 5 efficient range 1 9 Lr 1 00000 10 displays the upper limit flow rate t h Fh 800 0000 11 displays the removing micro signal FL 24 000000 when
15. ar the upstream of the mount point of the flow tran smitter the constant opening and closing of the value will greatly influence the ser vice life of the flow transmitter and cause permanent damage to the flow transmitter 9 4 The meter has been debugged before delivery and does not need adjustment 17 commonly the vortex flowmeter coefficient is corresponding with one diameter refer name plate 10 Parameter setting configuration 10 1 Status display displays the instantaneous flow rate and cumulative flow rate measurement on the LCD spot Include model version A version B Version A LCD screen without signal output inner 3 6VDC Li Battery 1 Twin row numerical LCD displays instantaneous flow rate and cumulativ flow rate 2 With external temperature sensors to make temperature corrections and real izes full real time linear compensation automatically when measuring saturated steams and convert the working condition flow rate into mass flow or volume flow The meas urement is simple and accurate 3 Inner 3 6VDC 5Ah Li Battery gt 2 years service life Version B LCD screen with signal output 4 20mA two wire system 1 It has the function of Type A and output 4 20mA current singal 2 The 4 20mA current output signal can meet remote various requirements of X industrial auto equipments such as DCS Distributed Control System 3 remote transfer distant 1200m 10 2 Operating Procedures 10 2 1 The c
16. flow Max Min Medium temperature Medium pressure MPa Medium density kg dm3 t m3 Meter Output signal Explosion proofclass Protection grade 5 1 Gas Air Nominal Size Normal work flow Measurable flow Nominal Pulse Rate DN mm m3 h m3 h Hz 15 5 30 5 40 460 3700 20 6 50 6 60 220 3400 25 8 60 8 120 180 2700 32 14 100 14 150 130 1400 40 18 180 18 310 90 1550 50 30 300 30 480 80 1280 65 50 500 50 800 60 900 80 70 700 70 1230 40 700 100 100 1000 100 1920 30 570 125 150 1500 140 3000 23 490 150 250 2500 200 4000 18 360 200 400 4000 320 8000 13 325 250 600 6000 550 11000 11 220 300 1000 10000 800 18000 9 210 350 1500 15000 1100 24000 8 175 400 1800 18000 1500 30800 7 143 450 2100 21000 2000 35000 6 90 500 2500 25000 2000 48000 5 120 600 3200 32000 2500 70000 3 5 98 Notes 1 This table assumes standard conditions of Air 0 20 0 1MPa p0 1 205kg m3 v0 3 60m s 2 The air in other conditions very temperature atmospheric pressure the flow through the following formula condition QO p0 P T TO QO the upper corresponds to the minimum flow flow from the upper limit condition of pressure and temperature effects PO standard atmosphere 0 101325MPa P pressure condition gauge press
17. he pipeline Unit m s m The ratio between Lune Circulation area of bluff body at both sides and cross sectional area Unit zero dimension dic Upstream face width of bluff body inside vortex flowmeter Unit m D Inside diameter ID of vortex flowmeter Unit m Qiu Instantaneous volume flow Unit m3 h Kx Instrument coefficient of vortex flowmeter Unit pulses m3 M Instantaneous mass flow Unit kg h p Fluid density Unit kg m3 Note vortex flowmeter K coefficient is corresponding with one diameter the exact K value should be calibrated in practice Viz one cubic meter fluid through sensor output numbers of pulse under working condition 3 Main characteristics 3 1 Simple structure high reliability and trouble free long term use 3 2 Series DN25 DN600 mounted structure using Wafer version or Flange version can be selected to adapt to different users 3 3 Two wire output current pulse three wire voltage pulse 4 20mA analog voltage signal to adapt to a variety of end user 3 4 Intelligent wide variety of medium caliber amplifier common including non traffic signal automatic recognition software has greatly enhanced anti jamming performance instrumentation 3 5 Built in LI battery 3 6VDC can be displayed at the screen can be 24VDC for the screen outside the show that can be displayed outside the screen at the same time for the 24VDC output 4 20mA analog current signal 4 Technic
18. nstalled near 9 4 The meter has been 10 Parameter setting configuration 10 1 Status display 10 2 Operating Procedures 10 3 Flameproof INTRODUCTION 1 Summary Darhor Technology Ltd used international advanced testing technologies to developed piezoelectric intelligent DH900 type vortex flowmeter the products have made a breakthrough progress in the anti vibration reliability high temperature etc They comply with JB T9249 1999 Vortex Flow Sensor industry standard and can be used in measure saturated steam superheated steam high and low temperature liquids gases and other media They widely used in metallurgical chemical light industry food and sewage treatment industries 2 The working principle Vortex flowmeter is based on Karman vortex street principle of the development of a fluid oscillation type flowmeters use of modern electronic detection technology to detect the vortex frequency through the treatment of convertor it sends 4 20mA current signal By using our company 5 temperature transmitter and display monitor It can show high quality test results Computational formula as follows F St V md eee eI I ERR ak ai t Formula 1 3000 A Formula 2 repete eSI Ido RIDE cid ie aed Formula 3 Among Formula E Fluid flow through bluff body generate frequency of vortex Unit Hz St Strouhal constant zero dimension Ns Mean velocity of fluid inside t
19. ure atmospheric pressure Mpa T temperature condition 273 t standard temperature 273K 5 2 Fluid liquid Nominal Size Normal work flow Measurable flow Nominal Pulse Rate DN mm m3 h m3 h Hz 15 176 0 8 8 90 900 20 12 8 1 15 40 600 25 2 16 16 18 35 7 400 32 22 7 20 18 30 20 250 40 2 50 25 2 48 10 240 50 3 5 35 7 70 8 190 65 6 60 5 85 7 150 80 13 130 10 170 6 110 100 20 200 15 270 5 7 90 125 30 300 25 450 4 5 76 150 50 500 40 630 3 8 60 200 100 1000 80 1200 3 2 48 250 150 1500 120 1800 2 5 375 300 200 2000 180 2500 2 2 30 6 350 300 3000 220 3500 17 27 400 350 3500 300 4500 14 21 450 420 4200 400 6000 1 2 15 500 500 5000 400 7100 1 0 17 8 600 700 7000 500 10000 0 7 14 Note 1 The table refers to liquid water at room temperature t 20 p0 1000kg m3 v0 1 10m s 2 if the measurement of liquid rather than water and liquid density is known according to the formula 00 x r amp p0 p working conditions in the medium density traffic conditions under the lowe r limit Q0 the upper table in the same caliber flow of the lower limit p0 th e density of water taken 1000kg m3 p the density of the measured medium 5 3 Saturated steam Flow range of staturated steam unit kg h 10 ert Tue pee o o e o oe rave s LAE MS Mam e ow m w w m w z mo
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