產(chǎn)品詳情
被測(cè)氣體狀態(tài)和性質(zhì)首先應(yīng)該考慮流體的性質(zhì),:對(duì)不可壓縮流體來(lái)說(shuō),體積流和質(zhì)量流失可以轉(zhuǎn)換的,即可通過(guò)速度和密度相關(guān)變量來(lái)求得(速度和密度為定值時(shí))。對(duì)天然氣的計(jì)量有兩種狀況:一是加工處理前非潔凈的天然氣的計(jì)量,一是加工處理后潔凈天然氣的計(jì)量。測(cè)量環(huán)境安裝條件安裝條件往往取決于現(xiàn)場(chǎng)空間、方位的要求。旋進(jìn)旋渦流量計(jì)常常要求傳感器的安裝方向和流動(dòng)方向分別是水平、垂直和水平,并且由于受流速畸變等因素影響,需要在上游或下游加一定長(zhǎng)度的直管,消除對(duì)其的干擾。
72850-04-04-01-01-00-00-15 BENTLY NEVADA
PWA 103928-02 BENTLY NEVADA
72400-02-04-01-01-15 BENTLY NEVADA
PWA 72928-02G BENTLY NEVADA
78596-01D BENTLY NEVADA(鴻飛達(dá)科技速銷(xiāo)備件中心)
PWA 72928-02M BENTLY NEVADA
72951-03-01-03-03 BENTLY NEVADA
72308-51-01 BENTLY NEVADA
90120-02-52 BENTLY NEVADA
PM-14030K BENTLY NEVADA(鴻飛達(dá)科技速銷(xiāo)備件中心)
72976B-M BENTLY NEVADA
72951-03-01-15-01 BENTLY NEVADA
78432-02P BENTLY NEVADA
330930-060-00-00 BENTLY NEVADA
21000-16-10-00065030 BENTLY NEVADA
72928-02H BENTLY NEVADA
19048-05-30-10-02 BENTLY NEVADA(鴻飛達(dá)科技速銷(xiāo)備件中心)
29399-XX-XX-01-XX-XX BENTLY NEVADA
330908-00-30-10-02-00 BENTLY NEVADA
31000-16-10-00-267-03-02 BENTLY NEVADA
72865-01C BENTLY NEVADA
PWA 72915-01M BENTLY NEVADA
PWA 191898-02-15 BENTLY NEVADA(鴻飛達(dá)科技速銷(xiāo)備件中心)
R22系統(tǒng)的也不能把R41a的壓縮機(jī)更換上去,更換時(shí)采用原型號(hào)的壓縮機(jī),變頻的壓縮機(jī)一定要用原型號(hào)的,更換敞口時(shí)間要小于3min。換熱器:銅管徑減小(7螺紋管),強(qiáng)度增加性能提高。高、低壓截止閥:R41a的系統(tǒng)只能采用專(zhuān)用的截止閥,不能把R22系統(tǒng)用的裝到R41a系統(tǒng)里去。R41a的截止閥可以安裝到R22系統(tǒng)里去,但價(jià)格較貴,也不建議這樣安裝。R41a高、低壓閥與R22高、低壓閥的區(qū)別:R22的閥體上沒(méi)有專(zhuān)門(mén)的標(biāo)識(shí),R41a的閥體上有專(zhuān)門(mén)的標(biāo)識(shí):R41a,且R41a低壓截止閥冷媒充注口要比R22的沖注口大。
BMXEHC0200 X80-D 2通道高速計(jì)數(shù)×60KHz,每通道6×24VDC輸入/2×晶體管輸出,4種計(jì)數(shù)模式和4種測(cè)量模式及PWM ¥5,048.08 庫(kù)存產(chǎn)品BMXEHC0800 X80-D 8通道高速計(jì)數(shù)×10KHz,每通道2×24VDC輸入,5種計(jì)數(shù)模式和1種測(cè)量模式
BMXMSP0200 X80-D 2軸脈沖輸出,輸出頻率200KHZ,自帶4入離散輸入和2路離散量輔助輸出 ¥5,006.71 庫(kù)存產(chǎn)品BMXERT1604T X80-D M340/X80事件記錄模塊,16通道帶時(shí)標(biāo)離散量輸入(時(shí)標(biāo)精度1ms),寬溫,-25°C到+70°C ¥9,092.73 庫(kù)存產(chǎn)品PMESWT0100 X80-D eX80,稱(chēng)重模塊,1 通道(CAPP)
BMXFTB2000 X80-D 壓線式端子塊(20點(diǎn))
BMXFTB2010 X80-D 螺釘端子塊(20點(diǎn))
BMXFTB2020 X80-D 彈簧端子塊(20點(diǎn))
BMXFTB2800 X80-D 壓線式端子塊(28點(diǎn))
BMXFTB2820 X80-D 彈簧端子塊(28點(diǎn)),可用于PTO模塊
BMXFTW301 X80-D 離散量輸入/輸出電纜,1× FTB 端子條, 20根帶有顏色編碼的飛線,長(zhǎng)度:3M
BMXFTW501 X80-D 離散量輸入/輸出電纜,1× FTB 端子條, 20根帶有顏色編碼的飛線,長(zhǎng)度:5M
BMXFTW1001 X80-D 離散量輸入/輸出電纜,1× FTB端子條, 20根帶有顏色編碼的飛線,長(zhǎng)度:10M
BMXFCW301 X80-D 離散量輸入/輸出電纜,1× FCN連接頭, 20根帶有顏色編碼的飛線,長(zhǎng)度:3M
BMXFCW501 X80-D 離散量輸入/輸出電纜,1× FCN連接頭, 20根帶有顏色編碼的飛線,長(zhǎng)度:5M
BMXFCW1001 X80-D 離散量輸入/輸出電纜,1× FCN連接頭, 20根帶有顏色編碼的飛線,長(zhǎng)度:10M
BMXFCW303 X80-D 離散量輸入/輸出電纜,1×FCN連接頭, 2×20根帶有顏色編碼的飛線,長(zhǎng)度:3M
BMXFCW503 X80-D 離散量輸入/輸出電纜,1×FCN連接頭, 2×20根帶有顏色編碼的飛線,長(zhǎng)度:5M
一般在制藥類(lèi)凈化廠房中使用風(fēng)機(jī)類(lèi)型管道式風(fēng)機(jī)或屋頂通風(fēng)機(jī)。離心或軸流風(fēng)機(jī)都常見(jiàn)到。將使用功能和時(shí)間相同的房間的排風(fēng)合流排出,方便控制。對(duì)于特殊房間的排風(fēng)的風(fēng)機(jī)要加過(guò)濾器,以防污染大氣。風(fēng)機(jī)、風(fēng)管的設(shè)計(jì)選擇依據(jù):在設(shè)計(jì)時(shí)根據(jù)換氣次數(shù)求出單位時(shí)間內(nèi)整個(gè)房間的通風(fēng)量(L:換氣量,n:換氣次數(shù),:房間體積)。換氣次數(shù),根據(jù)房間的使用功能來(lái)確定,房間一般5~1次/h。通風(fēng)機(jī)的風(fēng)量除應(yīng)滿足計(jì)算風(fēng)量外,還應(yīng)增加一定的管道漏風(fēng)量,排風(fēng)系統(tǒng)的漏風(fēng)附加率不大于1%。
ALLEN BRADLEY 42EF-G1MNA-F4 SER A * USED *
ALLEN-BRADLEY-SLC500 PROCESSOR UNIT20 I/0 SER.B FRN.6 #1114108R *USED
Allen Bradley via TCS 802TW17 Ser. B NSFP 802T W17
Allen Bradley via TCS JAIN056S500UA NSFP (WH)
Allen Bradley 1746-OA8 Output Module 1746-0A8 Series A
allen bradley 1771-IBD ANALOG OUTPUT DIFFERENTIAL 4ISOLATED 1.5AMP 1000V
Allen Bradley 509BOH Starter Gebraucht
ALLEN BRADLEY S201455 DATE: 1995 (BR/WH) NSFS
Allen Bradley via TCS 100M05NKD31 Ser. A NSFP (BR/WH) 100 M05NKD31
ALLEN BRADLEY 193EA1KE RELAY USED
ALLEN BRADLEY 2090-UXLF-HV323 AC DRIVE 520VAC, 23AMP, 2090UXLFHV323 SER. A
Allen Bradley Cat. No: 194R-NJ030P3 Disconnect Switch w/ LPK-15SP Fuses. Ser. B<
ALLEN BRADLEY 42GRF-9100-QD SER. A PHOTOSWITCH SENSOR * USED *
Allen Bradley 96134473 1771-IBD Series B Input Module
ALLEN BRADLEY 17910-0B16PX SER.B *USED*
Allen-Bradley / Rockwell Cat. #: 2090-UXLF-HV233 RFI Filter / AC Drive < W
Allen Bradley via TCS 800HR2D1 Ser. F NSFP (WH) 800H R2D1
Allen Bradley, Data Instruments, Smartpac
ALLEN BRADLEY 871C-P5A18 SER.A *USED*
ALLEN BRADLEY 74102-588-51 DRIVE POWER SUPPLY 74102-587-02 7410258851
Allen Bradley 800 hqrm 10r Button NEW with packaging
Allen Bradley Z13956 Switch NEW
ALLEN-BRADLEY 800H-QRB10R SER. F RED ILLUMINATED PUSH BUTTON
Allen Bradley 800 mrqt 24gs Pilot Light NEW with packaging
Allen Bradley 8000 KRIOZ I/O Interface Module 906782-02 A01
Foxboro ICT Sensor Model 1234-L875-14A 0-1000 PSIA +/- 5 Vdc 0-45 mV
FOXBORO 150PSI ELECTRONIC TRANSMITTER ST-A 821GM-IS1NM1 / D0135ND 103218
FOXBORO 2AO-IPD-S INTEGRATOR POWER DRIVER *USED*
Lot of 4 Foxboro 2AX-DP10 Power Distribution Modules - 2AX+DP10
Lot of 4 Foxboro 2AX-DP10 Power Distribution Modules - 2AX+DP10
FOXBORO 500M-A0035K 120 VAC 500M MONITOR
FOXBORO 500M-A0035K 120 VAC 500M MONITOR
FOXBORO 8000A SERIES MAGNETIC FLOWTUBE 98301673 2A9831 8001A-WCR-PJGFNA-G
FOXBORO 8000A SERIES MAGNETIC FLOWTUBE 98301673 2A9831 8001A-WCR-PJGFNA-G
Foxboro FBM202 P0926EQ Channel Isolated 8 Input Thermocouple/mV Used GPP
Foxboro FBM202 P0926EQ Channel Isolated 8 Input Thermocouple/mV Used GPP
FOXBORO 3C4-D2VS (Used, Cleaned, Tested 2 year warranty)
FOXBORO 3C4-D2VS (Used, Cleaned, Tested 2 year warranty)
NEW FOXBORO 873EC-AIPFGZ ELECTROCHEMICAL ANALYZER MODULE
NEW FOXBORO 873EC-AIPFGZ ELECTROCHEMICAL ANALYZER MODULE
Foxboro I/A Seies PO400ZG Rev 0H Modebus Interface - 1 Year Warranty
FOXBORO ECKARDT// Circuit Three Wires/Type: 112/PT. DIN/20 ° -140 °/0-20ma
NEW FOXBORO 3/4" STAINLESS VORTEX FLOWMETER E83WA-3QS1STFAA
一般對(duì)于非腐蝕性流體,常選用不銹鋼;對(duì)于腐蝕性較強(qiáng)的流體,可選用哈氏合金;對(duì)于沖擊、振動(dòng)、磨損嚴(yán)重的流體,可選用堆焊硬質(zhì)合金或噴涂材質(zhì)。另外當(dāng)操作介質(zhì)溫度高于+2℃時(shí),要選擇帶散熱片的上閥蓋。調(diào)節(jié)閥的輔助裝置主要有閥門(mén)定位器、電磁閥、回訊開(kāi)關(guān)、過(guò)濾減壓器、保位閥等。閥門(mén)定位器是調(diào)節(jié)閥的一個(gè)重要附件,常見(jiàn)的有氣動(dòng)閥門(mén)定位器和電氣閥門(mén)定位器兩種。它主要用于:1)高壓差的場(chǎng)合;實(shí)現(xiàn)分程控制;調(diào)節(jié)閥口徑較大的場(chǎng)合;改善調(diào)節(jié)閥的流量特性。
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