Varian

Varian / Agilent Turbo-V 551 Navigator Turbomolecular Pump

Name: Varian / Agilent Turbo-V 551 Navigator Turbomolecular Pump
Brand: Varian
Price: 5199.00 USD
Availability: InStock

Part Number: 9698924

Condition: Refurbished

In Stock

The Varian / Agilent Turbo-V 551 Navigator (frequently referred to in system configurations as the 551/511 series class) is a highly reliable, medium-capacity turbomolecular vacuum pump engineered for demanding industrial processes, semiconductor environments, and high-precision scientific research. Delivering a robust pumping speed of up to 550 L/sfor Nitrogen ( $N_2$ ), this pump provides a thoroughly clean, hydrocarbon-free high to ultra-high vacuum environment.

The Turbo-V 551 utilizes Varian’s industry-proven permanently lubricated ceramic ball bearings on the foreline side, integrated seamlessly with proprietary Macrotorr stages. This optimized layout allows the pump to sustain exceptionally high foreline/backing pressure limits and massive gas throughputs, minimizing requirements on your backing pump. Machined from a rigid monoblock alloy to withstand potential atmospheric shocks, it offers an exceptionally high Mean Time To Failure (MTTF) for critical uptime applications.

High-Efficiency Macrotorr Stages: Delivers unmatched compression ratios for light gases, ensuring ultimate pressure depth while managing high backing pressures.
Hydrocarbon-Free Delivery: Maintenance-free, permanently lubricated ceramic bearings eliminate oil reservoirs and prevent oil backstreaming into the chamber.
Monoblock Rotor Engineering: Advanced structural integrity allows the turbine blades to maintain stability under sudden gas bursts or mechanical impacts.
Multi-Orientation Mounting: Designed to operate smoothly and safely at any physical angle or mounting orientation.
Integrated Safety Sensors: Features an onboard upper-bearing thermal sensor to constantly monitor core temperatures and protect against critical tool failures.

Technical Specifications

Parameter	Specification
Manufacturer	Varian Vacuum Technologies / Agilent Technologies
Model Class	Turbo-V 551 / 511 Navigator Series
Common Part Numbers	969-8921 (ISO 160) \| 969-8922 (CF 8") \| 969-8923 (ISO 100)
Pumping Speed ( $N_2$ )	550 L/s (with ISO 160 or CF 8") \| $$350\text{ L/s$ (with ISO 100 constraint)
Pumping Speed ( $He$ / $H_2$ )	$600\text{ l/s}$ / $450\text{ l/s}$
Compression Ratio	$1 \times 10^9$ ( $N_2$ ) \| $$1 \times 10^$ ( $$H$ ) \| $$1 \times 10$ ( $($H$ )
Ultimate Base Pressure	$< 1 \times 10^{-10}\text{ mbar}$ ( $< 1 \times 10^{-10}\text{ Torr}$ )
Foreline Connection Flange	DN 25 ISO-KF (NW25)
Nominal Rotational Speed	$42,000\text{ RPM}$
Ramp-Up / Start Time	$< 3\text{ minutes}$
Cooling Options	Forced Air (Convection Fan) or Integrated Water-Cooling blocks
Power Requirements	Driven via 3-phase, high-frequency Navigator inverter supply
Weight	$15.5\text{ kg}$ ( $34.1\text{ lbs}$ for basic ISO 160 variant)