... recovery, purification treatment, storage and recharge for switch of high-voltage switch manufactory, electrical appliance research institute, power plant, ... pumping speed: 200m3/h, 253m3/h (Roots multicell pump)It can be vehicular Technical indexVolume of storage tank300L ... stalk, 10 metersd) Gas bottle heating weighing devicee) Switch joint New gas quality standard for industrial SF6(China National ...