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      1. CN
        Current Position: Home Products Liquid(water) Ring Vacuum Pump

        Liquid(water) Ring Vacuum Pump

        Model:SK-3


        Series SK 、2SK and SZ water ring vacuum pumps can be used to pump water vapour as well as ordinary gases. Because they own the features of constant temperature compressing, they can pump inflammable, explosive and corrosive gas.
        Series 2YK liquid ring vacuum pumps own the features of high vacuum and better applicability. When suitable actuating medium or sometimes pumped medium can be chosen as actuating liquids, the series pumps almost can pump all industrial gases. Aforesaid pumps own the features of reposefully operation, low noise and less than 30 percent of energy consumption compared with water vapour jet vacuum pump. So the liquid ring pumps can be widely used for light, food, medicine, paper making and electric utility industries etc.

        There are projects as follow for consumer to choose
        1.AThere are projects as follow for consumer to choose ccording as the degree of vacuum
        ●If the pump is operated for long time with the inlet pressure ranging between 1.3×104Pa and 1×105Pa(between 100 and 760 Torr). Please choose series SK water ring vacuum pump.
        ●If the pump is operated for long time with the inlet pressure ranging between 5×103Pa and 1.3×104Pa(between 40 and 100 Torr). Please choose series 2SK water ring vacuum pump.
        ●If the pump is operated for long time with the inlet pressure ranging between 1×103Pa and 5×103Pa(between 8 and 40 Torr). Please choose series 2YK liquid ring vacuum pump.
        2.Working liquid
        ●The water with normal temperature. The temperature of supply water range best from 5℃ to 20℃. The highest temperature of supply water should be not higher than 40℃.
        ●Transformer oil or industrial oil with low viscosity and saturation vapour pressure. The highest suitable temperature of the oil should be not higher than 60℃, for example electric utility industry: Vacuum drying.
        ●Chemical liquid, choose direct the chemical raw material with low saturation vapour pressure, for example ethylamine etc.
        ●Besides the water with normal temperature, if choose other working liquid, should equip separator and radiator etc. the dynamic seal of the shaft should use the mechanical sealing. Detailed performances see the list.
        3.Choose the dynamic seal of the shaft:
        ●Choose the asbestos coil when the pump is used in the generic occasion.
        ●Choose the mechanical sealing when the pump is used in no leak occasion.
        4.Choose the material of the part that the gas passed.:
        ●Besides the shaft, other parts are made of cast iron or alloy of copper; it is suitable for pumping no corrosive gas.
        ●Stainless steel 304 and 306, it is suitable for pumping corrosive gas.
        ●Engineering-oriented plastic, it is suitable for pumping acidic and corrosive gas.
        5.If the pump is used for pump gas and transport gas. The pressure of gas outlet port exceeds atmosphere pressure. We choose the pump according as something as follow:
        ●If the pressure of gas outlet port is exceed 0.15Mpa, should choose the especial double-stage liquid ring compressor and should not choose the refitted vacuum pump. The power should be augmented. Should equip the especial separator and auto-drainage.
        ●If the pressure of gas outlet port is under 0.15Mpa, can choose the refitted vacuum pump as compressor.
        6.Methods of installation water ring vacuum pump system
        ●When the working liquid of the gas outlet port do not recirculate or part recirculate. Should use the opening circulation system.
        ●When the working liquid of the gas outlet port must recirculate and not drained off. Should use the closing circulation system.

        Model SK pump main performance-parameter table

        Model Pumping speed Ultimate pressure Power Rotating speed Water supply
        Inlet & outlet dimensions Weight
        m3/min hPa Torr kw r/min L/min mm kg
        SK-0.5B 0.5 47 35 1.5 2900 8 1" 45
        SK-0.8 0.8 47 35 2.2 2900 10 40 60
        SK-1.5 1.5 47 35 4 2900 15 40 75
        SK-3 3 80 60 5.5 1450 25 50 153
        SK-6 6 80 60 11 1450 35 50 210
        SK-9 9 80 60 18.5 980 55 80 400
        SK-12 12 80 60 22 980 70 128 600
        SK-12B 12 80 60 18.5 980 60 100 450
        SK-20 20 80 60 45 980 70 100 800
        SK-25 25 80 60 45 980 70 100 900
        SK-30A 30 80 60 55 740 100 100 1200
        SK-42 42 80 60 75 740 100 100 1500

        Model SK-3~SK-42 pump outline & lnstallation dimension drawing 

        Model L1 L2 L3 L4 L5 L6 L7 L9 L H1 H D d B n-c m-k
        SK-3 690 1030 170 455 505 466 220 26 1302 538 653 140 50 110 4-Ø14.5 4-Ø23
        SK-6 820 1244 220 455 505 508 220 28.5 1527 538 653 140 50 110 4-Ø14.5 4-Ø23
        SK-9 1120 1420 150 504 550 580 285 55 1770 628 856 185 80 150 4-Ø18.5 6-Ø25
        SK-12 1180 1540 180 504 550 585 285 65 1820 628 796 220 128 180 4-Ø18.5 6-Ø25
        SK-20 1340 1700 180 570 620 720 370 70 2085 740 1000 230 100 180 8-Ø18 6-Ø22
        SK-25 1560 1880 160 570 620 720 370 131 2177 740 920 230 100 180 8-Ø18 8-Ø22
        SK-30A 1800 2120 160 684 740 946 350 218 2450 880 1080 235 100 200 6-Ø18 8-Ø27
        SK-42 1920 2320 200 684 740 944 350 253 2689 880 1080 235 100 200 6-Ø18 8-Ø27


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