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Agilent Varian SD 451 - REBUILT

Price: $1,950.00
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Agilent Varian SD 451 - REBUILT
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Agilent Varian SD 451 - REBUILT

Agilent Varian SD 450 / 451 Rotary Vane Vacuum Pump - REBUILT

Series 91 through 451 pump models with the following main characteristics:

  • A direct drive motor makes them very compact.
  • An electrically insulated fold-away handle is used for easy carrying.
  • An anti-suckback system ensures the tightness of the pump during accidental or voluntary shutdowns.
  • A gas ballast enables the pumping of condensable vapours (except for CP series).
  • The universal three-phase or singlephase motor can be disassembled independently of the rest of the pump, without needing to drain the oil case.
  • On the oil case, a vertical sight gloss can be used to inspect the oil level easily when filling the tank and during the operation of the pump.
  • A neutral gas purge is used to degas oil and dilute pumped gases on CP series models.

If the requested voltage is not in stock then we will purchase a new motor and split the cost with you. They run on various vacuum pump oils.

Questions? Please call our toll free number at 866-332-0500 or send an email to our sales team!

SD Series Unit SD-91 SD-201 SD-301 SD-451
Frequency Hz 50 60 50 60 50 60 50 60
Number of stages 2
Rotation speed rpm 1,500 1,800 1,500 1,800 1,500 1,800 1,500 1,800
Nominal flow rate m3/h (cfm) 5.4 6.5 (3.8) 9.7 11.6 (6.8) 15 18 (10.6) 20.7 24.8 (14.6)
Flow rate Pneurop method 4.8 5.7 (3.4) 8.5 10.2 (6) 12.5 15 (8.8) 16.5 20 (11.8)
Partial ultimate pressure* w/ Varian GP type oil Torr / mbar (Pa) 7.5 x 10-5 / 1 x 10-4 (1 x 10-2)
Ultimate pressure w/ gas ballast closed 1.5 x 10-3 / 2 x 10-3 (2 x 10-1)
Ultimate pressure w/ gas ballast open 1.5 x 10-2 / 2 x 10-2 (2)
Oil capacity l 0.83 0.950 0.98
Weight (pump + motor)** kg (lbs) 25 (55) 26 (57) 27 (59.5) 28 (62)
Maximum water vapour pumping capacity (Ballast flowrate 1.1 m3/h) mbar (Pa) 35 (35 x 102) 25 (25 x 102) 20 (2 x 103) 15 (15 x 102) 12 (12 x 102) 10 (1 x 103) 7 (7 x 102)
Water vapour pumping capacity g/h 120 110 125 100 110 100 90
Inlet and exhaust end fittings ISO-KF DN 25

Request for Quote

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs. Please follow the above link, and fill out the quote form.

Agilent Varian 451 Rotary Vane Vacuum Pump - REBUILT

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