Pfeiffer Vacuum HEPTA 100 P, Руководство по эксплуатации

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3.1.1 Water cooling
An integrated water pump ensures an evenly distributed temperature within the pumping system. The
temperature controller is fitted before the heat exchanger in the cooling circuit. If the cooling liquid tem-
perature exceeds 55 °C, the temperature controller opens (mechanical opening) and allows the cooling
liquid to flow into the heat exchanger.
3.1.2 Temperature monitoring
The thermal circuit breaker monitors the operating temperature and prevents overheating and potential
blockages in the screw pump. Once the pre-set switching temperature has been reached, the screw
pump must be switched off.
3.1.3 Thermometer
The thermometer shows the cooling water temperature in the cooling water chamber.
3.1.4 Shaft seal on motor side and vacuum side
The sealing systems prevent any penetration of process gases into the storage chambers. A sealing
gas system may improve effectiveness of the sealing systems, depending on the respective application.
3.1.5 Gas ballast
An integrated gas ballast system serves the controlled supply of ambient air or inert gas into the suction
chamber. Gas ballast supports the reduction of condensate accumulating in the pumping system.
3.1.6 Sealing gas system
Sealing gas is used to protect the screw pump in dusty processes, or wherever excessive gas through-
puts are prevalent. Sealing gas prevents the ingress of damaging substances into the motor and bear-
ing area. The supply is carried out either via a sealing gas valve or a sealing gas throttle without control.
3.2 Identifying the product
► To ensure clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate to hand.
► Observe the motor-specific data on the motor rating plate attached separately.
3.3 Product features
Pump type Characteristics
Hepta 100 P ● Nominal pumping speed at 50 Hz: 110 m 3 /h
● Nominal pumping speed at 60 Hz: 130 m 3 /h
● Vacuum connection and gas outlet: 1 1/2" thread
● Water cooling
● Temperature switch
Hepta 200 P ● Nominal pumping speed at 50 Hz: 220 m 3
/h
● Nominal pumping speed at 60 Hz: 265 m 3
/h
● Vacuum connection and gas outlet: G 2"
● Water cooling
● Temperature switch
Hepta 300 P ● Nominal pumping speed at 50 Hz: 320 m
3 /h
● Nominal pumping speed at 60 Hz: 385 m
3 /h
● Vacuum connection and gas outlet: 2"
● Water cooling
● Temperature switch
Tbl. 4: Characteristics of the screw pumps
Product description
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