??應用/Application:

??? 可單個選擇，也能作為前級泵。 ??? can be used alone, and also can be used as prepump. ??? 能作于蒸空系統冶煉、蒸空系統氬弧焊、蒸空系統混凝土澆筑、蒸空系統潮濕、化工環保生物制藥、電蒸空系統元器件等工業生產。 ??? Can be use in the indusries such as vacuum metallurgy, vacuum welding, vacuum casting, vacuum drying, chemical and pharmaceutical, electric vacuum devices. ??? 可在環境溫濕度5°C-40°C超范圍內和進口壓強不低于1330Pa的環境下，允許的長用時連續性工作的。 ??? Long continuous work is enabled under the conditions of environmental temperature 5°c-40°c and inlet pressure less then 1330 Pa. ??? 未能抽除含氧過高、有毒有害的、有爆性的、有被蝕性的、對泵油起電化學的反應的、富含顆粒劑灰塵的氣物，也未能帶作數據傳輸泵便用。 ??? Can not be used to extract high oxygen, toxic, explosive, corrosive, chemical reaction responding to pump oil and dust contained gases or used as delivery pump. ??? 在6650Pa到大氣質量壓的德國壓強下連續式工作的耗時，不宜高出3min ??? The time of continuous work under the inlet pressure of 6650Pa to high atmospheric pressure can be no more than 3 minutes.

??主要數據與規格/Main specifications:

技術參數 Model		2X-4C	2X-8	2X-15	2X-30A	2X-70A
抽氣強度 (L/S)		4	8	15	30	70
級限阻力 (≤Pa)	氣鎮關 With gas ballast	6x10ˉ2
	氣鎮開 Without gas ballast	6x10ˉ1			1.33
減速機工作效率 (kw)		0.55	1.1	2.2	3	5.5
進氣口規格 (mm)		KF25	DN40	DN40	DN65	DN80
轉數 (r/min)		420	320		450	420
泵溫度 (≤°C)		40
用加油量 (L)		1	2	2.8	2	4.2
燥聲 (≤dB)		75	78	80	82	86
權重 (kg)		59	158	202	236	338
尺寸大小 (cm)		49x31x41	79x43x54	79x53x54	78x50x56	91x65x70