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Agilent / Varian HS-2 Diffusion Pump

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Agilent / Varian HS-2 Diffusion Pump Agilent / Varian Diffusion Pumps Vacuum Products


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
  • Ordering Details
  • Download HS-2 Diffusion Pump 3D Model
Specifications

Technical 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 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
Ordering Information
Description                                                Wt. kg (lbs)                  Part Number
ASA
With standard cold cap, 120 V                 20.0 (9.0)                     82906301
With standard cold cap, 240 V                 20.0 (9.0)                      82906302

Description                                                Wt. kg (lbs)                  Part Number
 
Water-cooled baffle with ASA flanges     10.0 (4.5)                     F9453302
Santovac 5 diffusion pump fluid,             2.5 (1.1)                       695405005
500 cc pump fluid, 500 cc
Installation and Operation Manual                                             699901150

Description                                                Wt. kg (lbs)                  Part Number
Replacement Parts (one heater required per pump)
 
350 W, 120 V heater (HS2A)                    1.0 (0.5)                       647301100
450 W, 120 V heater                                 1.0 (0.5)                       647302125
Heater block (one required per pump)    1.0 (0.5)                       82920001
Heater platen (one required per pump)  1.0 (0.5)                       82918301
Replacement o-ring kit, (5 Inlet flange   1.0 (0.5)                       K0377159
o-rings (butyl 2-338))

NOTE 
  • Inlet flange: nominal 2 in. ASA flange with 6 in. OD
  • Foreline flange: 0.84 in. diameter tube

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