Fully Refurbished Varian TV 301 Turbomolecular Pump, CFF 8", 9698921 Overview: The TV 301 Navigator is an integrated system with a turbomolecular pump for high and ultra-high vacuum applications with its relevant controller. The system can pump any type of gas or gas compound. It is not suitable for pumping liquids or solid particles. The pumping action is obtained through a high speed turbine (max. 56000 rpm) driven by a high-performance 3-phase electric motor. The TV 301 Navigator is free of contaminating agents and, therefore, is suitable for applications requiring a "clean" vacuum. It is equipped with auxiliary connectors to supply an additional fan, to control the vent valve, to be controlled from a remote site by means of an host computer connected through a serial line (RS232 or RS485). The TV 301 Tubro Pump is available in four different models that differ only in the high vacuum flange. The pump consists of a high frequency motor driving a turbine fitted with 8 bladed stages and 3 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: - 1st stage with a blade angle of 42°
- 2nd stage with a blade angle of 28°
- 3rd stage with a blade angle of 24°
- 4th and 5th stages with a blade angle of 20°
- 6th, 7th and 8th stages with a blade anlge of 10°
The Macrotorr stages are in the form of four 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 54 Vac three-phase at 933 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 can be water cooled or air cooled: in the first case the customer can use the dedicated channels on the pump body, in the second case an external optional fan is available. A thermistor sensor is mounted near the upper bearing to prevent the pump from overheating. The pump is balanced after assembly with a residual vibration amplitude less than 0.01 ?m. The pump can operate in any position and can be supported on the high vacuum flange. The connection of the forevacuum on the side of the pump is a KF 16 NW flange. Technical Data: Pumping Speed (l/s): Compression Ratio: - N2: > 2 x 108
- He: 1 x 105
- H2: 2 x 104
Base Pressure with Recommended Fore Pump: < 2 x 10-10 mbar Foreline Flange: KF 16 NW Rotational Speed: 56000 rpm Start-up Time: < 3 minutes Operating Ambient Temperature: + 5 °C to + 35 °C Unit is fully rebuilt and comes with a FULL 3-MONTH WARRANTY! PN06953 AJVS Service and Repair Information:  Varian TV 301 Turbomolecular Pump Repair A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service. Due to our confidence in the quality parts and service we guarantee 6-12 month warranty for parts and labor. We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed. We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies. Repair Steps - Full incoming inspection and run up time check, vibration check, drive inspection.
- Full disassembly, decontamination and cleaning.
- Pump is balanced utilizing state-of-the-art equipment from the world leader in equipment balancing and analysis to reduce noise and vibrations and extend bearings life.
- Assembly and replacement of all necessary parts such as shafts, bushings, bearings, sleeves, O-rings, gaskets, seals, wicks, etc. Only parts that meet or surpass OEM specifications are used to ensure dependable highest quality service and long pump life.
- Final test and leak check. The pump in fully assembled condition is checked for vacuum seal. Leak test to 1 x 10-9 Mbar l/s. Vibrations are analyzed and test data is digitally recorded.
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.
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