Varian DRYVAR 150 Dry Turbo Pumping System, 150 l/sec, DN 63 ISO, 120 V, 50/60 Hz, 969-9163

Varian DRYVAR 150 Dry Turbo Pumping System, 150 l/sec, DN 63 ISO, 120 V, 50/60 Hz, 969-9163

The DRYVAR 150 pumping system consists of a pump with an integrated controller and a forepump and is available in four models which differ only in the high vacuum ISO63 Inlet flange with pumping speed of 150 l/sec.

The Varian DRYVAR150 is an indoor, bench-top turbo pumping system that is comprised of an diaphragm backing pump. The DRYVAR 150 produces an oil-free high vacuum, while maintaining one button operation. The system features a DN 63 ISO inlet flange.

Turbo Pump Description

The turbopump consists of a high frequency motor driving a turbine fitted with 8 bladed stages and 6 Macrotorr stages. The turbine rotates in an anticlockwise direction when viewed from the high vacuum flange end. The turbine is made of high-strength aluminium alloy, machined from a single block. Proceeding from the high vacuum to the for vacuum
region, the turbine stages sequence is: 1 stage with a blade angle of 42°, 1 stage with a
blade angle of 28°, 3 stages with a blade angle of 20°, and 3 final stages with a blade angle of 10°. The Macrotorr stages are in the form of six discs. The turbine rotor is supported by permanently lubricated high precision ceramic ball bearings installed
on the forevacuum side of the pump.

The static blades of the stator are made of stainless steel. These are supported and accurately positioned by spacer rings. The Macrotorr stators are in the form of selfpositioning machined discs with pumping channels and an opening restricted by the corresponding rotor discs. These are made of aluminium alloy. During normal operation, the motor is fed with a voltage of 120 Vac three-phase at 1050 Hz. To reduce losses during start-up to a minimum, the frequency increases according to a ramp with a
higher initial voltage/frequency ratio. The pump is cooled by means of the integrated
fan. A thermistor sensor is mounted near the lower bearing to prevent the pump from overheating. The pump is balanced after assembly with a residual vibration amplitude less than 0.01 μm. The pump can operate in any position and can be
supported on the high vacuum flange.

Diaphragm Forepump Description

The pump consists of an electric DC motor driving an eccentric which moves an elastic diaphragm. The pump has two heads connected in series.The compression chamber is hermetically separated from the drive mechanism by means of the diaphragm. The pump transfers, evacuates and compresses completely oil-free. During normal operation, the motor is supplied with a voltage between 7 and 24 Vdc according to the gas load in order to increase the pump life.

Controller Description

The integrated controller is a solid-state frequency converter which is driven by a single chip microcomputer and is composed of a PCB which includes a power supply with a 3-phase AC output and a DC output to supply the internal diaphragm forepump, analog and input/output section, microprocessor and digital section. The controller recognizes the mains presence and converts the single phase AC mains supply into a 3-phase, medium frequency output which is required to power the pump, and into a DC, low voltage, output to supply the diaphragm forepump.The controller can be operated by a remote host computer via the serial connection.
 

DRYVAR 150 Features:

• One button operation
• 120 VAC, 50/60 Hz
• Oil free high vacuum performance
• Manual turbo vent valve
• Compact console
• Air-cooled vented case

A&J Vacuum Repair / Rebuild and Service Varian  DRYVAR Turbo VACUUM  PUMPS  along with all other Varian and Agilent Technology Vacuum Rotary Vane Pumps, Varian Turbomolecular Pumps  repair, Varian Leak Detector Repair and all other Pfeiffer Vacuum Rotary Vane pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page. We also offer Emergency service upon request. For more information Please contact A&J Vacuum Services at 973-249-0854