Product - HS-2 Diffusion Pump

HS-2 Diffusion Pump (3)
HS-2 Diffusion Pump (1)
HS-2 Diffusion Pump (2)

HS-2 Diffusion Pump

Available in 2 in. and 16 in. through 35 in. sizes, the low-cost HS-series pumps provide high speed, low ultimate pressure, high throughput, high tolerable forepressure, and low backstreaming. The HS-Series diffusion pumps come with full thermal protection and optional quick-cool coils. The 16 in. through 35 in. pumps come with sight glass/fill and drain assemblies, and are available with ASA or ISO flanges.

 


Features

  • High pumping performance in a compact package
  • Fractionating jet purifies pumping fluid
  • High tolerable forepressure
  • Stainless steel jet and pump body
  • Standard quick-cool coil
  • Finned boiler increases surface area, prolonging pumping fluid life
  • Foreline baffle prevents pumping fluid loss into backing system

How it works


Technology


Specifications

Pumping speed, operating range

Pumping speed, AVS 4.1 (1963)

160 l/s air, 200 l/s He and H2

285 l/s air

Maximum Throughput 0.60 T-l/s (0.80 mbar-l/s) in operating range, 0.70 T-l/s (0.93 mbar-l/s) @ 0.01 Torr
Operating Range 3.7 x 10-3 to < 5 x 10-8 Torr, (4.9 x 10-3 to < 6.5 x 10-8 mbar)
Maximum Forepressure No load: 0.55 Torr (0.71 mbar) Full load: 0.40 Torr (0.52 mbar)
Recommended Backing Pump ≥ 5 cfm (8.5 m3/hr)
Backstreaming Rate, Standard Cold Cap < 1 x 10-3 mg/cm2/min
Warmup Time 15 minutes
Cooldown Time 10 minutes (with quick cool coil)
Fluid Charge 100 cc
Electrical Requirements 1 ph, 50/60 Hz, 120/240 VAC
Pump Power 450 watts
Cooling Water Requirements 0.1 gpm (20 l/hr) at 60-80 °F (15-26 °C)
Water Connections ⅛ in. FPT

Literature