阿斯卡比例調(diào)節(jié)閥主要參數(shù),阿斯卡電磁閥工作壽命
water, oil - 10°C to + 90°C NBR (nitrile)
Differential pressure See ?SPECIFICATIONS? [1 bar =100 kPa]
Maximum viscosity 40 cSt (mm2/s)
Open loop proportional valves for automatic fl ow control of water and other non-corrosive liquids
Body Brass
Core tube Stainless steel
Core and plugnut Stainless steel
Springs Stainless steel
Voltage regulation 0 - 24 V DC
24 V DC pulse width modulated (300 Hz)
Flow regulation
characteristics (3) Hysteresis < 7,5 % ; Repeatability < 3 % ; Sensitivity < 2 %
Riderring PTFE
Seals, diaphragm NBR
Disc FPM
SCG203B001
SCG203B002
Breaker piece Stainless steel
? Special valve design to reduce pressure surges to a minimum, preventing waterhammer and ensuring noise-free closing
? The solenoid valves satisfy all relevant EC directives
Coil insulation class F
Connector Spade plug (cable ? 6-10 mm)
Connector specifi cation ISO 4400 / EN 175301-803, form A
Electrical safety IEC 335
Electrical enclosure protection Moulded IP65 (EN 60529)
Standard voltages DC (=) : 24V (Other voltages on request)
性
1、工作壽命,此項(xiàng)不列入出廠試驗(yàn)項(xiàng)目,屬于型式試驗(yàn)項(xiàng)目。為確保質(zhì)量應(yīng)選正規(guī)的產(chǎn)品。
2、工作制式:分長(zhǎng)期工作制,反復(fù)短時(shí)工作制和短時(shí)工作制三種。對(duì)于長(zhǎng)時(shí)間閥門開通只有短時(shí)關(guān)閉的情況,則宜選用常開電磁閥。
3、工作頻率:動(dòng)作頻率要求高時(shí),結(jié)構(gòu)應(yīng)直動(dòng)式電磁閥,電源應(yīng)交流。
4、動(dòng)作性
嚴(yán)格地來說此項(xiàng)試驗(yàn)尚未正式列入電磁閥標(biāo)準(zhǔn),為確保質(zhì)量應(yīng)選正規(guī)的產(chǎn)品。有些場(chǎng)合動(dòng)作次數(shù)并不多,但對(duì)性要求卻很高,如消防、緊急保護(hù)等 ,切不可掉以輕心。特別重要的,還應(yīng)采取兩只連用雙保險(xiǎn)
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