真空閥,充氣壓差閥,電磁真空帶充氣壓差閥
DYC-JQ型電磁真空壓差閥是機(jī)械真空泵安全閥,安裝于機(jī)械真空泵的進(jìn)氣口,并與泵同步開啟和關(guān)閉。當(dāng)泵停止工作或電源突然中斷時(shí),閥門利用大氣壓力使閥板自動(dòng)關(guān)閉,使真空系統(tǒng)保持真空并將大氣充入泵腔內(nèi),從而避免泵油逆向流動(dòng)而污染真空系統(tǒng)。適用介質(zhì)為純凈空氣和非腐蝕性氣體。
主要技術(shù)性能 Main Technical Performance | | | ■
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■ | 適用范圍:Applicability | 105~10-2Pa | 閥門漏率:Valve Leak Rate | ≤1.3×10-2Pa.L/S. | 適用溫度:Applicable Temperature | -30~+50℃ | 線圍溫升:Coil Temperature Rise | ≤65℃ | 開閉時(shí)間:Open-close Time | ≤3S | 電源電壓:Mains Voltage | 220V/50Hz |
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■ | 主要零件材料 Materials of Main Parts | | | ■
■ | 閥體、閥蓋、閥板:碳鋼或鋁合金 隔膜:丁腈橡膠加滌綸綢
Body, bonnet and disc: carbon steel or aluminium alloy Diaphragm: NBR and terylene silk |
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CONSTRUCTION FIGHTS (mm) |
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■ | 外形及連接尺寸(mm) Overall and Connection Dimensions(mm) |
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活套法蘭連接(GB6070 圖一)
Model 型號(hào) | DN | Do | D | D2 | n-φc | A | H |
DYC-JQ50 | 50 | 90 | 110 | 55 | 4-φ9 | 70 | 203 |
DYC-JQ63 | 63 | 105 | 130 | 68 | 4-φ9 | 88 | 226 |
DYC-JQ80 | 80 | 125 | 145 | 85 | 8-φ9 | 98 | 260 |
DYC-JQ100 | 100 | 145 | 165 | 105 | 8-φ9 | 108 | 282 |
DYC-JQ160 | 160 | 200 | 225 | 165 | 8-φ12 | 158 | 350 |
快卸法蘭連接(GB4982 圖二)
Model 型號(hào) | DN | D1 | D | A | H | B |
DYC-JQ16 | 16 | 17.2 | 30 | 40 | 160 | 55 |
DYC-JQ25 | 25 | 26.2 | 40 | 50 | 170 | 60 |
DYC-JQ32 | 32 | 34.2 | 55 | 58 | 179 | 60 |
DYC-JQ40 | 40 | 41.2 | 55 | 65 | 187 | 70 |
DYC-JQ50 | 50 | 52.2 | 75 | 70 | 203 | 85 |
方體螺紋連接(JB919 圖三)
Model 型號(hào) | DN | Do | D2 | h | B | H | n-d |
DYC-JQ16 | 16 | 42 | 22 | 28 | 48 | 148 | 4-M5 |
DYC-JQ25 | 25 | 55 | 29 | 35 | 58 | 155 | 4-M6 |
DYC-JQ32 | 32 | 64 | 36 | 40 | 68 | 160 | 4-M6 |
DYC-JQ40 | 40 | 70 | 44 | 44 | 80 | 166 | 4-M6 |
DYC-JQ50 | 50 | 90 | 55 | 56 | 94 | 189 | 4-M8 |
DYC-JQ65 | 65 | 105 | 70 | 65 | 115 | 205 | 4-M8 |
DYC-JQ80 | 80 | 125 | 85 | 75 | 140 | 250 | 4-M8 |