Agilent VHS-250 - NEW

Starting at $12,873
In stock
Only %1 left
Weight 75 lbs
Pumping Speed 7,839 cfm
Ultimate Pressure 1.2 x 10-3 to <5 x 10-9 Torr

Agilent Varian VHS-250 Diffusion High Vacuum Pump - NEW

The VHS-250 Diffusion Pump has a pumping speed of up to 2125 l/s. All VHS series pumps have sight glass/fill and drain assemblies for continuous monitoring and easy maintenance of pump fluid. The patented Bulge Contour increases gas capture and maintains lower pressure. Finned boilers increase surface area, prolonging pumping fluid life.

This Vapor Jet Pump is a perfect fit for high vacuum and industrial applications such as vacuum furnace, heat treatment, metallizing, and coating processes for optical lenses, electronics and protective film layers.

  • Highest pumping speed available
  • Fluid-level sight glass provides a quick indication of pump fluid status at all times
  • Fill and drain assembly for pump oil
  • Fractionating jet purifies pumping fluid
  • High tolerable forepressure
  • Full thermal protection
  • Stainless steel pump body and jet
  • Finned boiler increases surface area, prolonging fluid life

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

Backstreaming Rate 5 x 10-4 mg/cm²/min
Cooldown Time 10 min
Electrical Requirements 1-phase 50/60 Hz 120/208/240 V
Fluid Charge 500 CC
Fluid Type Oil
Input Voltage 120, 208, 240 V
Maximum Forepressure - Full Load 0.55 Torr / 0.72 mbar
Maximum Forepressure - No Load 0.65 Torr / 0.85 mbar
Maximum Throughput 2.6 T-L/s (3.5 mbar-L/s)
Operating Range 1.2 x 10-3 to <5 x 10-9 Torr
1.6 x 10-3 to <6.5 x 10-9 mbar
Pump Power 2,200 W
Pump Weight 75 lbs / 34 kg
Pumping Speed - Air 2,125 L/s
Pumping Speed - Air, via AVS 4.1 (1963) 3,700 L/s
Pumping Speed - He/H2 2,660 L/s
Recommended Backing Pump ≥ 17.0 cfm (28.9 m3/hr)
Warmup Time 10 min
Water Connections 1/8 inch FPT
Water Cooling - Temperature Requirement 60-80°F / 15-26°C
Water Cooling Flow Requirement 0.25 gpm / 50 L/hr


Type Label Description Download
Agilent VHS-4, VHS-6 & VHS-250 - NEW Instruction Manual Download

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.

Agilent Varian VHS-250 Diffusion High Vacuum Pump - NEW

K0543301 / K0543-301  ISO w/ standard cold cap 120V
K0543306 / K0543-306  ISO w/ standard cold cap 208V
K0543302 / K0543-302  ISO w/ standard cold cap 240V