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Agilent Varian VHS-400 Diffusion High Vacuum Pump - REBUILT

Price: $6,700.00
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Agilent Varian VHS-400 Diffusion High Vacuum Pump - REBUILT
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Agilent Varian VHS-400 Diffusion High Vacuum Pump - REBUILT

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

Specifications Units VHS-400
Optimum Operating Range Torr
mbar
1x10−3 to < 5x10−9
1.3x10−3 to < 6.5x10−9
Pumping Speed, Maximum l/s, Air 8,000 with std cold cap

Throughput (Air), Max. Overload Range @ 1x10−2 Torr (1.33x10−3 mbar))

Torr-l/s
mbar-l/s
8
10.6
Forepressure, Max. (5 Torr l/s (1.33x10−3 mbar))
No Load

Full Load


Torr
mbar
Torr
mbar


0.65
0.87
0.55
0.73
Backstreaming Rate at Pump Inlet (within Optimum Operating Range) mg/cm2/min < 1.0x10−3 (with std cold cap)
Electrical Requirements AC, 50/60 Hz, 3 phase V 208, 240, 380, 480
Cooling Water Flowrate @ Inlet Temperature of 60 to 80 °F (120°F max.) gpm (US) .5
Warmup time minutes 17
Cooldown Time
Without Quick Cool
With Quick Cool
minutes
65
22
Fluid Charge cc 1,000
Recommended backing pump capacity cfm 30
Pressure drop across coils psi 6
Heater circuit resistance Ohms L1-L2/L2-L3/L1-L3
19.6/19.6/39.2 at 208 V
26.2/26.2/52.4 at 240 V
65.6/65.6/131.2 at 380 V
104.7/104.7/209.4 at 480 V
Weight lbs (kg) 180 (81)
Jet assembly   4-stage, self-aligning aluminum
Foreline baffle   Stacked self-aligning half moon
Water connections   1/8" FPT
Thermal switches   Manual reset at 300 °F (148.9 °C)
Clearance (for heater removal)   6" minimum
Materials   Body - stainless steel
Flanges, foreline baffle - stainless steel
Body cooling coils - copper
Quick cooling coil - stainless steel
Cold cap - nickel-plated copper

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Agilent Varian VHS-400 Diffusion High Vacuum Pump - REBUILT

K4816307  ASA, VHS-400 with standard cold cap 208V
K4816326  ASA, VHS-400 with standard cold cap 380V
K4816309  ASA, VHS-400 with standard cold cap 480V
K4816308  ASA, VHS-400 with standard cold cap 240V
L9767307  ISO, VHS-400 with standard cold cap 208V
L9767326  ISO, VHS-400 with standard cold cap 380V
L9767309  ISO, VHS-400 with standard cold cap 480V
L9767308  ISO, VHS-400 with standard cold cap 240V
Accessories

IC400SV:   Centering ring for ISO Inlet flange, 400K
IC063SV:   Centering ring for ISO foreline flange, 63K
699901023: Installation and Operation Manual

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