Gear Type Flow Meter VC

Transcription

1 Gear Type Flow eter VC

2 2 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

3 Construction and Function Construction 1 Housing 2 Cover 3 Gear 4 reamplifier 5 Connector 6 Sensor 7 Bearing assembly Function The measuring gears are driven by the liquid flow on the principle of a gear motor. The gears run without contact in the measuring chamber. The bearing elements are low-friction ball or plain bearings. The movement of the gears is sampled without contact by means of two sensors located in the cover. Between sensor compartment and measuring chamber is located a pressure-resistant, non-magnetic separator plate. When the measuring mechanism rotates by one tooth pitch, the sensor emits a signal which corresponds to the geometrical tooth volume V gz. The signal is converted into a square-wave signal by the preamplifier. The two-channel sampling permits better resolution as well as recognition of the flow direction. RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 3

4 roduct Characteristics Optimized for individual applications because the series have been rendered media-specific by means of differing clearances, bearing variants and materials. Wide measuring ranges with sizes graduated to meet specific requirements. easurement independent of viscosity within the specified ranges ow pressure drop High-response measurement High working pressure ow noise emission High-precision measurement with outstanding reproducibility Temperature-independent output signals over a wide temperature range High degree of accuracy, even with low flow rates at the bottom end of the measuring range High working reliability of the electronics Easy to use terminal of the preamplifier Working indication of the electronic Sensor system and preamplifier in EC-compatible design Explosion-proof version available for all volume counters Typical Applications Application edium Version Series Flow rate measurement oil, brake fluid, skydrol, diesel cast iron (hydraulic test stand) lubricating ball bearings low viscosity minimal clearances 1 Oil metering gear oil cast iron (metering plant) lubricating ball bearings medium viscosity increased clearances 2 Consumption measurement offset ink cast iron (rinting press) lubricating bronze plain bearings high viscosity large clearances 3 Ratio control polyol + isocyanate, adhesives, resin, silicon cast iron (2 component plant) low lubricity carbide plain bearings medium viscosity increased clearances 4 Batching control clear lacquer, cavity waxes stainless steel (lacquering plant) low lubricity carbide plain bearings medium viscosity increased clearances 5 Flow rate measurement solvent stainless steel (lacquering plant) lubricating ball bearings low viscosity minimal clearances 6 For fluids with a low viscosity and poor lubricity a hybrid ball bearing (with ceramic balls) is a available for sizes VC.25, VC.4, VC.2 and VC 1. Flow meters with hydrid ball bearing are available in cast iron (series 7) and stainless steel (series 8). 4 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

5 Accuracy Characteristics The accuracy figures quoted by RACHT refer to the geometric tooth volume V gz, that is to say the percentage deviation applies to the current value in each case. The linearity error over the entire measuring range is < ±.1% Reproducibility of a measured value is <.1% Accuracy checking forms part of quality inspection in every case. On request the result of the test will be documented in the form of an accuracy characteristic curve; an example relating to a series 1 VC 1 is given below. The accuracy values quoted by racht are confirmed by the DD (German Calibration Service). Accuracy cm Volume per pulse % V gz = % G Flow rate Q inearity cm Volume per pulse % V gz = % G Flow rate Q RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 5

6 General Characteristics Design Connection type ounting position Flow direction Viscosity ax. pressure drop gear motor plate mounting/ pipe connection optional optional cst, (according to series) Dp max = 16 bar / 23 Working Characteristics Nominal geom. max. working pressure eak pressure Sound Resolution size tooth- Standard- High pressure Standard- High pressure pressure volume version version (/79) version version (/79) level V gz p max p max p^ p^ A ulse/l cm 3 bar / bar / bar / bar / db (A) ulse/gal / / 696 < / / 696 < / / 696 < / / 696 < / / 696 < / / 696 < / / 58 3 / 8 48 / 696 < / / 58 3 / 8 48 / 696 < / / 696 < / / 696 < 8 4,. 151, ,. 94,636. 1,. 37,854. 4, ,4.77 2,. 9, , , RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

7 ermitted Temperature Ranges (in C and in F) Sealing materials Series F ED FE FF FVQ Ambient temperature / / / / / edium temperature 1, 2, 6, 7, / / / / for standard version 3, 4, / / / / edium temperature 1, 2, 6, 7, / / / / for high temperature version 3, 4, 5 on request on request on request on request for high temperature US version1, 2, 6, 7, / * / * * / * edium temperature 1, 2, 6, 7, / / / / for -version 3, 4, / / / / for -version temperature US 1, 2, 6, 7, / edium temperature 5, 6, / for low temperature version * for size VC.25 max. C / 392 F Series Selection / Summary of Variants Series aterial housing Spheroidal cast iron Spheroidal Spheroidal Spheroidal stainless stainless Spheroidal stainless EN-GJS-4-15 cast iron cast iron cast iron steel steel cast iron steel (/79 EN-GJS-6-3) EN-GJS-4-15 EN-GJS-4-15 EN-GJS EN-GJS aterial gears steel steel steel steel stainless steel stainless steel steel stainless steel Bearing ball bearings ball bearings bronze- carbide carbide stainless steel hybrid hybrid plain bearings plain bearings plain bearings ball bearings plain bearings ball bearigs Connection /R /R /R ax. perm. foreign particle size in the medium (μm) Accuracy ±.3 % ±.5 % ± 1 % ±.5 % ±.5 % ±.3 % ± 1 % ± 1 % (from measuring value) at 2 cst at cst at cst at cst at cst at 2 cst at 2 cst at 2 cst Nominal Starting easuring range size point at l/min l/min gal./min gal./min * * * easuring accuracy ± 3%; inearity ± 1.5% RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 7

8 Type ey Ordering example VC.2 F 1 S/.. means: Nominal size.2 / Seal F / Series 1 / late mounting / Electronic standard Special ID No. Seal F F E ED FE FF Q FVQ Connection type late mounting R ipe connection Series see series selection Electronics S standard (-4 12 C / F) H high temperature (-4 C / F) high temperature US (-4 22 C / F) low temperature version (-6... C / F) V without preamplifier (for plug-in display SD1) X intrinsically safe (ATEX) (switching amplifier has to be ordered separately) X high temperature US ATEX (-3 22 C / F) (switching amplifier has to be ordered separately) roduct code Nominal size Special Versions Special ID Series Description version with aluminium connection box and preamplifier VV12 with Cannon plug version with Hirschmann connector and round connector 12 x version with Hirschmann connector and preamplifier VV12 for 12 Volt power supply ( Volt) 79 1 VC 3 and VC 5 in high pressure version (4 bar / 58 ) VC 3 and VC 5 in high pressure version (4 bar / 58 ) Skydrol resistant, with aluminium connection box and Cannon plug Skydrol resistant, with aluminium connection box and Cannon plug. 8 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

9 Electrical Connection Standard version / High temperature version 24 Volt (brown) Signal output channel 1 Channel 1 (green) High temperature US version Electrical connection (Round connector 12 x 1/4-pin) (4) Channel 1 (black) (1) 24 V (brown) Signal output channel 2 Channel 2 (yellow) (3) V (blue) (2) Channel 2 (white) Electrical Characteristics Volt (white) Number of measuring channels 2 Operating voltage U op = VDC polarized ulse amplitude U A.8 U B ulse shape with symm. output signal Signal output square wave pulse duty factor/ channel 1:1 ± 15 % N (NN on request) ulse offset between two channels 9 ± 3 ower requirement b max =.9 W Output power/channel a max =.3 W short-circuit-proof Degree of protection I 65 DIN 4 Signal Characteristics Channel I A rising edge B one pulse (corr. to flow rate of geom. tooth volume V gz) C falling edge D ON phase E OFF phase F pulse duty factor 1:1 ± 15 % Channel II G channel offset H flow direction 1 reversal of flow direction J flow direction 2 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 9

10 Explosion-roof Design (ATEX) Function All volume counters are available in explosion-proof design according to ATEX. The explosion-proof design consists of the volume counter (intrinsically safe electrical apparatus) and the switching amplifier 13 (associated electrical apparatus). The type of protection intrinsic safety applies to this construction. The volume counter is installed in the potentially explosive atmosphere. The mounting of the amplifier 13 is carried out in the safe area. Volume counter and switching amplifier are electrically connected to each other. The switching amplifier evaluates the sensor signals and converts them to square-wave signals. Without switching amplifier, the volume counter must not be operated in the potentially explosive atmosphere. Cable lengths of up to 4 m / 1312 ft are possible between volume counter and switching amplifier. ED s for monitoring line breaks / short circuits, channel switching state and power supply are located on the switching amplifier. Safe area otentially explosive atmosphere brown white Channel 1 Channel 2 13 shield brown white VC Volt 24 Volt 7, 8 and 9 jumpered green yellow A green yellow II (2) G [EEx ia] IIC TB 3 ATEX 294 X II 2 GD EEx ia IICT4 TB 3 ATEX 2249 Note: This graph is an example only. National laws for potentially explosive areas must be considered. Technical Data of Switching Amplifier -13/3-E-1 ower supply Supply voltage cl. 7 (+), cl. 1 (--) DC 24 Volt ± 2 % Ripple content white Wss < 1 % Outputs (non-intrinsically safe) Characteristics cl. 9, 12, 8, 11 Electronics outputs Short-circuit current Signal level 1-signal Signal level -signal Ambience conditions inimum limiting temperature aximum limiting temperature electrically isolated via optoelectronic coupler approx. 25 ma.8 x supply voltage with R > 2 k ohm inhibited output, residual current < 1 ua 248 (-- 25 C / F) 333 (+ 6 C / + 14 F) echanics Dimensions 17.5 x 92 x 22 mm Connection possibility can be snapped on a 35 mm mounting channel DIN Weight approx. g /.33 lb 1 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

11 ressure Drop Series 1, 2, 6, 7 and 8 arameter: Viscosity (cst) VC , VC.25 (extract) VC , VC.4 (extract) VC.1 Flow rate Q VC.2 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 11

12 ressure Drop Series 1, 2, 6, 7 and 8 arameter: Viscosity (cst) VC VC VC VC VC VC 16 Flow rate Q 12 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

13 ressure Drop Series 3 arameter: Viscosity (cst) VC VC RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 13

14 ressure Drop Series 4/ 5 arameter: Viscosity (cst) VC.1 Flow rate Q VC VC VC VC VC 5 14 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

15 Dimensions Series 1, 2, 3, 4, 7 Connection type Nominal Available Weight Tightening size series kg torque in Nm Dimensions in mm m A A C D F GS GH J N VC.25 1, VC.4 1, VC VC.2 1, 2, 4, VC.4 1, VC 1 1, 2, 3, 4, VC 3 1, 2, VC 5 1, 2, 3, pounds torque in bs Dimensions in inch m Ab A C D F GS GH J N VC.25 1, VC.4 1, VC VC.2 1, 2, 4, VC.4 1, VC 1 1, 2, 3, 4, VC 3 1, 2, VC 5 1, 2, 3, mm / 2.83 inch 17 mm /.67 inch J mm / 1. inch F G S G H O-Ring C N Version S and Version X Tightening torque A Version H Connection dimensions D A N RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 15

16 Dimensions Series 1 High pressure version (/79) Nominal Weight Tightening size kg torque in Nm Dimensions in mm m A C D F GS GH J N VC VC pounds torque in bs Dimensions in inch VC VC Series 1 Standard version Nominal Weight Tightening size kg torque in Nm Dimensions in mm m A C D F GS GH J N VC VC pounds torque in bs Dimensions in inch VC VC mm / 2.83 inch 17 mm /.67 inch J mm / 1. inch C G H N F G S N ø D 16 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

17 Dimensions Connection plate (cast iron) for VC 3/79 and VC 5/79 (high pressure) with side SAE flange connection Ordering Weight code kg Dimensions in mm m A B C E F G N R a b e f VC 5 V1 E9* /15t /24 t /24 t pounds Dimensions in inch VC 5 V1 E9* /t= /t= /t=.94 * fits for VC 3 and VC 5 Connection plate for VC 12 and VC 16 with side SAE flange connection Ordering Weight code kg Dimensions in mm m A B C E F G N R a b e f VC 12 V1 G9** /2 t /45 t /25 t pounds Dimensions in inch VC 12 V1 G9** /t= /t= /t=.98 ** fits for VC 12 and VC 16 ø A E f G C b B F R e a ø A X X N RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 17

18 Dimensions Series 5, 6 and 8 (stainless steel) Connection type Nominal Available Weight Tightening size series kg torque in Nm Dimensions in mm m A C D F GS GH J N VC.25 5, 6, VC.4 6, VC.1 6, VC.2 5, 6, VC , 8 VC 1 5, 6, VC 3 5, VC 5 5, pounds torque in bs Dimensions in inch m AB C D F GS GH J N VC.25 5, 6, VC.4 6, VC.1 6, VC.2 5, 6, VC VC 1 5, 6, VC 3 5, VC 5 5, mm / 2.83 inch 17 mm /.67 inch mm / 1. inch J G S F G H O-Ring Ø D Version S and Version X C Ø N Version H Tightening torque A Connection dimensions Ø N 18 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

19 Dimensions Series 5, 6 and 8 (stainless steel) Connection type R Nominal Available Weight size series kg Dimensions in mm m A B C D E F GS GH H J VC.25 5, 6, 8 3. G VC.4 6, 8 3. G VC.1 6, 8 3. G VC.2 5, 6, G VC G VC 1 5, 6, 8 7 G VC 3 5, G VC 5 5, G pounds Dimensions in inch m A B C D E F GS GH H J VC.25 5, 6, G VC.4 6, G VC.1 6, G VC.2 5, 6, G VC G VC 1 5, 6, G VC 3 5, 6 35, G VC 5 5, G mm / 2.83 inch 17 mm /.67 inch J A E B H F G S G H fl fl D Version S and Version X Version H RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 19

20 Dimensions VC High Temperature US Nominal Weight Tightening size kg torque in Nm Dimensions in mm m A A C D F G J N VC VC VC VC VC VC VC VC pounds torque in bs Dimensions in inch m Ab A C D F G J N VC VC VC VC VC VC VC VC High temperature US area Normal area D 64 mm / 2.52 inch 58 mm / 2.28 inch J engths ordering designations 12.4 mm / 58 mm / 2.28 inch.49 inch Tightenning torque F 36 mm / 1.42 inch G 14 mm /.55 inch 36 mm / 1.42 inch O-Ring C A 46 mm / 1.81 inch View X Ø 4.3 mm /.17 inch Connection dimensions N 2 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

21 Dimensions VC High Temperature US Nominal Weight Tightening size kg torque in Nm Dimensions in mm m A C D F G J N VC 3 / VC 5 / VC VC pounds torque in bs Dimensions in inch m Ab C D F G J N VC 3 / VC 5 / VC VC High temperature US area Normal area 64 mm / 2.52 inch 14 mm /.55 inch 58 mm / 2.28 inch J engths ordering designations 58 mm / 2.28 inch 12.4 mm /.49 inch Tightenning torque 36 mm / 1.42 inch F G 14 mm /.55 inch C 36 mm / 1.42 inch Ø 4.3 mm /.17 inch N Connection dimensions 46 mm / 1.81 inch View X Ø D N RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 21

22 A E C øh R f Connection plates (cast iron) with side threaded connection Ordering Weight code kg Dimensions in mm m A B C E F G H J N R c d e f VC.2 U 3 B 5* / 14 t /16-18 UNF-2B 13 VC.2 U 3 C 5* / 14 t /4-16 UNF-2B 15 VC.4 U 1 C / 18 t /4-16 UNF-2B 15 VC.4 U 1 D / 18 t on request 17 VC 1 U 2 C / 18 t /4-16 UNF-2B 15 VC 1 U 3 D / 18 t /16-12 UN-2B 17 VC 1 U 2 E / 18 t /16-12 UN-2B 19 VC 5 U 2 E 5** / 24 t /16-12 UN-2B 19 VC 5 U 2 G 9** / 24 t on request 23 pounds Dimensions in inch m A B C E F G H J N R c d e f VC.2 U 3 B 5* /t= /16-18 UNF-2B.51 VC.2 U 3 C 5* /t= /4-16 UNF-2B.59 VC.4 U 1 C /t= /4-16 UNF-2B.59 VC.4 U 1 D /t= on request.67 VC 1 U 2 C /t= /4-16 UNF-2B.59 VC 1 U 3 D /t= /16-12 UN-2B.67 VC 1 U 2 E /t= /16-12 UN-2B.75 VC 5 U 2 E 5** / t= /16-12 UN-2B.75 VC 5 U 2 G 9** / t= on request.91 ** fits for VC.25, VC.4, VC.1 and VC.2 ** fits for VC 3 and VC 5 J øg B F View X N e d c Connection plates (cast iron) with side SAE flange connection A E X Ordering Weight code kg Dimensions in mm m A B C E F G H J N R a b e f VC 5 V2E 5** / 24t / 24 t VC 5 V1F / 24t / 25 t pounds Dimensions in inch m A B C E F G H J N R a b e f VC 5 V2E 5** / t = /t=.94 VC 5 V1F / t = /t=.98 ** fits for VC 3 and VC 5 øh f B F C b J R N x øg e a View X 22 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

23 Connection plates (cast iron) with rear threaded connection Ordering Weight code kg Dimensions in mm m A B C E F G H J N R c d e f VC.2 U 3 B 4* / 14 t /16-18UNF-2B 13 VC.4 U 1 C / 18 t on request 15 VC.4 U 1 D / 18 t on request 17 VC 1 U 2 C / 18 t /4-16UNF-2B 15 VC 5 U 2 E 4** / 24 t /16-12UN-2B 19 pounds Dimensions in inch m A B C E F G H J N R c d e f VC.2 U 3 B 4* / t = /16-18UNF-2B.51 VC.4 U 1 C / t = on request.59 VC.4 U 1 D / t = on request.67 VC 1 U 2 C / t = /4-16UNF-2B.59 VC 5 U 2 E 4** /t= /16-12 UN-2B.75 ** fits for VC.25, VC.4, VC.1 and VC.2 A ** fits for VC 3 and VC 5 C J G E N B øg c f øh d e R F Connection plates (cast iron) with rear SAE flange connection Ordering Weight code kg Dimensions in mm m A B C E F G H J N R a b e f VC 5 V2E4** / 24t / 24 t pounds Dimensions in inch m A B C E F G H J N R a b e f VC 5 V 2 E 4** /t= /t=.94 ** fits for VC 3 and VC 5 A C E J f b B R F øh øg N e a RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 23

24 Connection plates (Stainless steel) with side threaded connection Ordering Weight code kg Dimensions in mm m B D C E G H J N R e f VC.2 R4 B11* /14 t 18 G VC 1 R3 C /18 t 19.5 G VC 1 R2 D /18 t 21 G VC 5 R2 E11** / 24 t 52 G1 19 VC 5 R2 G11** /24 t 63 G pounds Dimensions in inch m B D C E G H J N R e f VC.2 R4 B11* /t= G VC 1 R3 C /t= G VC 1 R2 D /t= G VC 5 R2 E11** /t= G1.75 VC 5 R2 G11** /t= G ** fits for VC.25, VC.4, VC.1 and VC.2 ** fits for VC 3 and VC 5 ø D E C J ø H B ø G e f N R 24 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

25 Note RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 25

26 Note 26 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com

27 Note RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com 27

28 roduct ortfolio Gear umps Gear pumps for lubricating oil supply equipment, low pressure filling and feed systems, dosing and mixing systems. Hydraulics Single and multistage high pressure gear pumps and hydraulic motors for construction machinery, vehicle-mounted machines. Flow easurement Gear, turbine and screw type flow meters and electronics for volume and flow metering techno logy in hydraulics, processing and laquering technology. Valves Cetop directional control and proportional valves, pressure, quantity and stop valves for pipe and slab construction. VC / USA/2.19 RACHT COR Weatherfield Court aumee, OH USA F flowmeters@krachtcorp.com