PL 325 M
14Pages

Catalog excerpts

Vacuum-Compact Systems S\H\modular PL 325 M, PL 425 MPressure range: 33 to 1013 mbarSuction capacity: 100 to 470 m3/h DESIGN AND CONSTRUCTION The siHImodu,ar systems consist of a various components which are assembled together to form a compact unit. Each unit can be varied in accordance with the respective application. The LEM liquid ring vacuum pump utilised in these systems is of a single stage design and of a simple and robust construction with the following features: • Non polluting due to near isothermal compression • Oil free, no lubrication in the working chamber • Capable of handling nearly all gases and vapours • Small quantities of entrained liquid can be handled • Easy to maintain and reliable operation • Low noise and virtually free from vibration • Anti cavitation protection as standard The SIHImodular systems are offered as a service liquid saving arrangement and can be supplied with or without a heat exchanger. APPLICATION As with the other SIHI liquid ring vacuum pumps this type is also capable of handling dry and saturated forms of gases. Small quantities of entrained liquid in the suction gas stream can also be dealt with. The SIHImodular is designed for vacuum applications of between 33-900 mbar, however, this range can be extended when used in conjunction with the respective gas operated ejector. (See standard catalogue for details). NOTE During its operation, the liquid ring vacuum pump must be continuously supplied with service liquid, normally water, in order to eliminate the heat resulting from the gas compression, and to prevent the pump from dry running operation. The service liquid is separated from the process gas in a separator. Dependent on the chosen arrangement and proposed application, the necessary service liquid can be either totally or partially recirculated within the system, conserving the amount of fresh make up liquid required. However, when using the total recirculated arrangement, the operating suction pressure must be 800 mbar or lower. The direction of rotation is clockwise when viewed from the drive end of the pump. Max. Compression over pressure **) Max. Admissible pressure difference **) Hydraulic test (over pressure) Moment of inertia of the rotating pump parts and of the water filling Sound pressure level at a suction pressure of 80 mbar (standard values) Service liquid volume up to shaft level Max. Flow resistance of the heat exchanger *) Pump casing, if 60 Hz electric motors without EEx e II T3 protection are used **) In this case special measures should be taken for the separator

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Vacuum compact system equipped with: • Manual service liquid regulation • Ball type non-return valve • Anti cavitation protection • Mounting feet or rubber or mounting rails Designation M 10 0 (Low Cost-construction type) Additional options: • as above, but thermostatic service liquid regulation (regulating range 0 - 30 °C) Designation M 15 0 (Base-construction type) • as above, but with service liquid low level monitoring device for conductive liquids Designation M 20 0 (High Class-construction type) • as above, but with additional standard electric control Designation M 25 0 (High...

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Suction volume flow and power absorption PL 325 M suction volume flow suction pressure power absorption suction pressure The operating data are applicable under the following conditions:   pumping medium: service liquid: - dry air: - water vapour saturated air: Discharge pressure 1013 mbar (atmospheric pressure) The suction volume flow is applied to the suction pressure Tolerance of the operating data 10% Max. fresh water need with lowest suction pressure Suction volume flow and power absorption PL 425 M

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suction volume flow suction pressure power absorption suction pressure The operating data are applicable under the following conditions:   pumping medium: service liquid: - dry air: - water vapour saturated air: Discharge pressure 1013 mbar (atmospheric pressure) The suction volume flow is applied to the suction pressure Tolerance of the operating data 10% Max. fresh water need with lowest suction pressu

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(Low Cost-construction type) - Ball type non-return valve - Anti cavitation protection - Rubber mounting feet or mounting rails Fresh water requirements in [m3/h] dependent on suction pressure, speed and difference in temperature FB = fresh service liquid KB = combined service liquid with service water 10 °C, 5 °C, 2 °C warmer than the fresh water.

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Construction type M 15 0 with: -Thermostatic service liquid regulation (0 - 30 °C) (Basis-construction type) - Ball type non-return valve - Anti cavitation protection - Rubber mounting feet or mounting rails Fresh water requirements in [m3/h] dependent on suction pressure, speed and difference in temperature FB = fresh service liquid KB = combined service liquid with service water 10 °C, 5 °C, 2 °C warmer than the fresh water.

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(High Class-construction type) - Ball type non-return valve - Anti cavitation protection - Rubber mounting feet or mounting rails - Additional service liquid low level monitoring device for conductive liquids Fresh water requirements in [m3/h] dependent on suction pressure, speed and difference in temperature FB = fresh service liquid KB = combined service liquid with service water 10 °C, 5 °C, 2 °C warmer than the fresh water.

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Construction type M 25 0 with: - Thermostatic service liquid regulation (0 - 30 °C) (High End-construction type) - Ball type non-return valve - Anti cavitation protection - Rubber mounting feet or mounting rails - Additional service liquid low level monitoring device for conductive liquids - Additional standard electric control, steel plate enclosed Fresh water requirements in [m3/h] dependent on suction pressure, speed and difference in temperature FB = fresh service liquid KB = combined service liquid with service water 10 °C, 5 °C, 2 °C warmer than the fresh water.

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PL 325 M 14Pages

Catalog excerpts

All Flowserve SIHI Pumps catalogs and technical brochures

PL 325 M
14Pages