<strong id="unhll"><output id="unhll"></output></strong>
    1. <acronym id="unhll"><blockquote id="unhll"></blockquote></acronym>

    2. <ol id="unhll"></ol>

      1. <optgroup id="unhll"><li id="unhll"><source id="unhll"></source></li></optgroup>
        <track id="unhll"><em id="unhll"></em></track>

        <optgroup id="unhll"></optgroup>
      2. <acronym id="unhll"><blockquote id="unhll"></blockquote></acronym>
        <acronym id="unhll"></acronym><ruby id="unhll"><i id="unhll"></i></ruby>
        <optgroup id="unhll"><i id="unhll"></i></optgroup>
        Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
         
         
         
         
         
        Glass Tube Flowmeter
        LZB/LZJ series glass rot...
        Glass Tube Flowmeter
        Glass Tube Flowmeter
        LZB-()W/WB series micro ...
        Glass Tube Flowmeter

         


        Vortex Flow Sensor
        Product Model:Vortex Flow Sensor

        1.Working Principle:
        The vortex flowmeter operates on the basis of Karman vortex street principle. If put a vertical cylinder in flow fluid,during the range of Reynolds number will alternate to form a regular vertex behind the cylinder two sides,named as Karman vortex street.The direction of vortex street is inward,up will form a clockwise rotation,down will form a counter-clockwise rotation,the frequency in single side in proportion to flowrate, in inverse proportion to the diameter of vortex producer,the relationship of them as following:
        f=St×v/d
        In the formula:St-Jack straw Hal number;f-frequency product by single side vortex;v-flowrate;d-diameter.
        Instrument parameters K: a ratio of separation pulse amount of vortex to the volume amount:
        K=N/V
        In the formula:
        K-instrument coefficient (pulse 1/m3)
        N-pulse number (time)
        V-volume amount
        The relationship between the vortex separation frequency and liquid flow is as follows:
        f=K×Q
        In the formula:
        f-frequency (time)
        Q-flow (m3/h)
        By testing the vortex separation frequency, the liquid flow in the pipe can be measured.

        2.Type Selection:


        Model

        Instruction

        1

        2

        3

        4

        5

        6

        7

        8

        9

        10

         

         

         

         

         

         

         

         

        Karman Vortex Street

        LUG

         

         

         

         

         

         

         

        Stress Type Testing

        Measuring Ways

        1

         

         

         

         

         

        Flange connection(GB9119-2000)

        2

         

         

         

         

         

        Clamp flange(equip with flange and bolts in factory)

        Medium

        1

         

         

         

         

        Both for gas and liquid

        2

         

         

         

         

        Liquid

        3

         

         

         

         

        Gas

        4

         

         

         

         

        Steam

        Diameter

        02

         

         

         

        DN25

        04

         

         

         

        DN40

        05

         

         

         

        DN50

        08

         

         

         

        DN80

        10

         

         

         

        DN100

        15

         

         

         

        DN150

        20

         

         

         

        DN200

        25

         

         

         

        DN250

        30

         

         

         

        DN300

        Operation Condition

        Blank

         

         

        Normal Type

        B

         

         

        Intrinsic safety,iaIICT6

        Signal Output

        P

         

        Voltage pulse, 24V power

        Hand operator and digital control meter is optional

        S

         

        Pulse,4~20mA, on-site,24V power

        Optional Input ports:HART,temp.(PT100),pressure sensor,pressure transmitter

        D

         

        On-site,without any display,lithium battery

        Without any input ports

        Structure

        F

        Separated Type

        Z

        Integrated Type



        ? 2012 Changzhou Chengfeng Flowmeter Co.,Ltd All Rights Reserved   Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
        Design by Lingdong Internet  Switchboard:86-519-85503558,86-519-85503688  Fax:86-519-85505269,86-519-85503588-8008
        Friendly Links:成豐儀表阿里巴巴店鋪    新浪    
        国产v片在线播放免费无码,校服还没脱无套学生在线播放,无码中文字幕一区二区三区,午夜福利资源一区二区三区,在线看黄AV免费观看非洲,高跟鞋丝袜国产在线播放,99视频只有这里才是精品,日韩色欲色欲www图片,制服丝袜第一页AV天堂