Varian VHS-4 diffusion pump, no.86460316, NEW , with extended cold cap, 208 V, single phase, ASA flange

Varian VHS-4 diffusion pump, no.86460316, NEW , with extended cold cap, 208 V, single phase, ASA flange

$4,450 (USD)

or
Call (408) 209-9278

Description

Features
  • *NEW* never installed
  • 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
    • Technical Specifications

    Pumping Speed, Operating Range Pumping Speed, AVS 4.1 (1963)750 l/s air, 940 l/s He/H2 1,200 l/s Air
    Maximum Throughput1.5 T-l/s (2.0 mbar-l/s) in operating range, 2.5 T-l/s (3.2 mbar-l/s) @ 0.01 torr
    Operating Range2 x 10-3 to <5 x="" 10="" sup="">-9 torr (2.7 x 10-3 to <6.5 x="" 10="" sup="">-9 mbar)
    Maximum ForepressureNo Load: 0.65 torr (0.86 mbar) Full Load: 0.55 torr (0.73 mbar)
    Recommended Backing Pump≥10 cfm (17 m3/hr)
    Backstreaming Rate, Standard Cold Cap<5 x="" 10="" sup="">-4 mg/cm2/min
    Warmup Time10 minutes
    Cooldown Time10 minutes (with quick cool coil)
    Fluid Charge300 cc
    Electrical Requirements1 ph, 50/60 Hz, 120/208/240 VAC
    Pump Power1450 watts
    Cooling Water Requirements0.15 gpm (30 l/hr) at 60-80°F (15-26°C)
    Water Connections1â„8 in. FPT Tee

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    Specifications

    Stock Number3459
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