Agilent Varian VHS-4 - REBUILT

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In stock
SKU
REBUILT_VHS4
Weight 55 lbs
Pumping Speed 1,589 cfm
Ultimate Pressure 6.50 x 10-1 Torr

Agilent Varian VHS-4 Diffusion High Vacuum Pump - REBUILT

The Agilent Varian VHS Series bulge contour increases gas capture and maintains lower pressure for the process. These VHS diffusion pumps have sight glass/fill and drain assemblies for continuous monitoring and easy maintenance of pump fluid. Finned boilers increase surface area, prolonging fluid life. Full thermal protection and quick-cool coils are also standard. Please let us know if you would like a quote for a different heater voltage or for repair service of your pump.

We also carry Agilent Varian diffusion pump LN2 traps and baffles and valves.

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 300 CC
Fluid Type Oil
Input Voltage 120, 208, 240 V
Maximum Forepressure - Full Load 0.55 Torr / 0.73 mbar
Maximum Forepressure - No Load 0.65 Torr / 0.86 mbar
Maximum Throughput 1.5 T-L/s (2.0 mbar-L/s)
Operating Range 2 x 10-3 to <5 x 10-9 Torr
2.7 x 10-3 to <6.5 x 10-9 mbar
Pump Power 1,450 W
Pump Weight 55 lbs / 25 kg
Pumping Speed - Air 750 L/s
Pumping Speed - Air, via AVS 4.1 (1963) 1,200 L/s
Pumping Speed - He/H2 940 L/s
Recommended Backing Pump ≥ 10 cfm (17 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 0.15 gpm / 30 L/hr
Type Label Description Download
Varian Diffusion Pumps - REBUILT Data Sheet Download
Varian VHS-4 - REBUILT Instruction Manual Download

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Agilent Varian VHS-4 Diffusion High Vacuum Pump - REBUILT

Type No. 0183

86460301 / 86460-301  ASA w/ standard cold cap 120V
86460311 / 86460-311  ASA w/ extended cold cap 120V
86460306 / 86460-306  ASA w/ standard cold cap 208V
86460316 / 86460-316  ASA w/ extended cold cap 208V
86460302 / 86460-302  ASA w/ standard cold cap 240V
86460312 / 86460-312  ASA w/ extended cold cap 240V
L6256301 / L6256-301  ISO w/ standard cold cap 120V
L6256311 / L6256-311  ISO w/ extended cold cap 120V
L6256306 / L6256-306  ISO w/ standard cold cap 208V
L6256316 / L6256-316  ISO w/ extended cold cap 208V
L6256302 / L6256-302  ISO w/ standard cold cap 240V
L6256312 / L6256-312  ISO w/ extended cold cap 240V