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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107

Liquid ring vacuum pumps single stage LOH 20103, LOH 20107
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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 1

Liquid ring vacuum pumps single-stage LOH 20103, LOH 20107 VACUUM TECHNOLOGY LOH LI 1 133.71115.54.01 E 03/2008 Pressure range: 150 to 1013 mbar Suction volume flow: 7 to 58 m³/h CONSTRUCTION TYPE Sterling SIHI liquid ring vacuum pumps are displacement pumps of uncomplicated and robust construction with the following particular features: handling of nearly all gases and vapours non-polluting due to nearly isothermal compression oil-free, as no lubrication in the working chamber small quantities of entrained liquid can be handled easy maintenance and reliable Low noise and nearly free from vibration wide choice of material, therefore applicable nearly everywhere incorporated central drain no metallic contact of the rotating parts The Sterling SIHI liquid ring vacuum pumps LOH 20103 and LOH 20107 are single-stage ones. They can be applied without modification as compressors up to a compression pressure of 1 bar (see catalogue part K). APPLICATION Handling and exhausting of dry and humid gases; entrained liquid can be handled during normal duty. The pumps are applied in all fields where a pressure of 150 to 900 mbar must be created by robust vacuum pumps. Fields of application are for example: chemistry and pharmacy for distilling and degassing, electric industry for impregnation and drying plastics industry for degassing etc. NOTE During operation the pump must be continuously supplied with service liquid, normally water, in order to eliminate the heat resulting from gas compression and in order to replenish the liquid ring, because part of the liquid is leaving the pump together with the gas. This liquid can be separated from the gas in a liquid separator (see catalogue part accessories). Reuse of the service liquid is possible. The direction of rotation of the pump is clockwise when looking from the drive on the pump. GENERAL TECHNICAL DATA Unit LOH 20103 LOH 20107 Speed 50 Hz 60 Hz rpm 2800 1) 3400 2800 1) 3400 Max. compression over pressure bar 1 Max. admissible pressure difference bar 1,5 Hydraulic test (over pressure) bar 3 Moment of inertial of the rotating pump parts and of the water filling kg . m² 0,0033 0,005 Sound pressure level at a suction pressure of 200 mbar dB (A) 66 67 Min. pulley diameter permissible in case of V-belt drive mm 80 Max. gas temperature dry saturated °C °C 240 120 Service liquid max. admissible temperature max. viscosity max. density °C mm²/s kg/m³ 100 90 1200 volume up to shaft level liter 0,9 1,0 Max. flow resistance of heat exchanger bar 0,2 The combination of several limiting values is not admissible. 1) normal speed

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 2

2 Material design MATERIAL DESIGN Item COMPONENTS 01 02 42 0001, 0002 casing 0.6025 1.4408 0010, 0011 intermediate piece 0.6025 1.4408 0030 vane wheel impeller RG 9 1.4027.05 1.4517 0035 central body 1.0570 1.4581 0200 shaft 1.4021 1.4401 0500, 0600 mechanical seal Cr-steel / carbon / Perbunan Cr Ni Mo-steel / carbon / Viton Sectional drawing LOH 20103, LOH 20107

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 3

3 Suction volume flow and power absorption LOH 20103 0 5 10 15 20 25 30 100 suction pressure suction volume flow 2800 rpm m³/h 3400 rpm 200 300 400 600 mbar 1000 LOH 20103 0 0,2 0,4 0,6 0,8 1 1,2 100 suction pressure power absorption kW 2800 rpm 3400 rpm 200 300 400 600 mbar 1000 LOH 20103 The operating data are applicable under the following conditions: • pumping medium: - dry air: 20°C - water vapour saturated air: 20°C • service liquid: - water: 15°C Compression pressure 1013 mbar (atmospheric pressure) The suction volume flow is applied to the suction pressure Tolerance of the operating...

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 4

4 Suction volume flow and power absorption LOH 20107 0 10 20 30 40 50 60 70 100 suction pressure suction volume flow 2800 rpm m³/h 3400 rpm 200 300 400 600 mbar 1000 LOH 20107 0 0,5 1 1,5 2 100 suction pressure power absorption kW 2800 rpm 3400 rpm 200 300 400 600 mbar 1000 LOH 20107 The operating data are applicable under the following conditions: • pumping medium: - dry air: 20°C - water vapour saturated air: 20°C • service liquid: - water: 15°C Compression pressure 1013 mbar (atmospheric pressure) The suction volume flow is applied to the suction pressure. Tolerance of the operating data...

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 5

5 Dimension table LOH 20103, LOH 20107 weight a m1 m2 o3 abt. kg LOH 20103 114 260 230 299 20 LOH 20107 149 295 265 334 21 oval flange to DIN 2558 PN 6 N 1 = gas inlet G 1¼ N 2 = gas outlet G 1¼ uB = connection for service liquid G ³/8 ue = drain connection G ¼

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 7

7 Fresh water requirements in [m³/h] dependent on suction pressure, speed, mode of operation and difference in temperature suction pressure mbar 150 400 600 900 KB KB KB KB pump type speed rpm difference in temperature °C FB difference in temperature °C FB difference in temperature °C FB difference in temperature °C FB 20 10 5 2 20 10 5 2 20 10 5 2 20 10 5 2 LOH 20103 2800 0,03 0,05 0,09 0,16 0,3 0,02 0,04 0,07 0,13 0,27 0,02 0,04 0,06 0,11 0,21 0,01 0,02 0,04 0,06 0,1 3400 0,04 0,07 0,12 0,18 0,04 0,07 0,11 0,17 0,03 0,06 0,09 0,14 0,02 0,04 0,05 0,08 LOH 20107 2800 0,05 0,08 0,13 0,21...

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Liquid ring vacuum pumps single stage LOH 20103, LOH 20107 - 8

8 Accessories Recommended accessories LOH 20103 LOH 20107 Overhead liquid separator type weight XBa 342 5 kg material design 130 /steel galvanized 172 / 1.4571 SIHI part No. 35 000 377 35 000 378 service liquid line material design 072 / St 37-0 172 / 1.4571 SIHI part No. 20 054 559 20 054 560 Non-return valve type/weight XCk 32 / 1,2 kg resp. 3,1 kg material design 767 / GG-25+Perbunan 784 / 1.4408+Teflon SIHI part No. 20 072 744 20 029 488 Motor in case of standard design IP 55 size power weight size power weight 80 A 0,75 kW 8 kg 80 B 1,1 kW 10 kg 80 B 1,1 kW 10 kg 90 S 1,5 kW 13 kg EEx...

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