Helix CTI 9700 Cyro Pump Compressor On-Board Cyro-Torr

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Helix CTI 9700 Cyro Pump Compressor for CTI On-Board or CTI Cyro-Torr Vacuum Pump
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Model: 9700
CTI On-Board / CTI Cyro-Torr Vacuum Pumping Systems CTI Compressor
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Helix CTI 9700 Cyro Pump Compressor for CTI On-Board or CTI Cyro-Torr Vacuum Pump Configurations:


The 9700A Compressor supports either On-Board or Cryo-Torr Cryopumps. For multiple cryopump installations, an On-Board Splitter Box or Cryo-Torr Interface can be used for cold head power distribution that reduces total cable requirements.
CTI-CRYOGENICS 9700 Helium Refrigeration System

The operation of CTI-CRYOGENICS' cryopumps is based upon a closed loop helium expansion cycle. The system is made up of two major components: the cryopump, which contains the cold head, and the helium Compressor which compresses the helium gas. Refrigeration is produced in the cryopump cold head
through periodic expansion of high pressure helium in a regenerative process. The high pressure helium is provided by the Compressor. Low pressure helium returning from the cold head is compressed into the necessary high pressure to be returned to the cold head. The energy required to compress the helium is rejected as heat through the cooling water. High pressure room temperature helium is transferred to the cold head through the supply lines. After expansion, low pressure helium is returned to the Compressor (at or near room temperature) to repeat the cycle in a closed loop fashion. Large separation distances can be accommodated between the Compressor and the cryopump. In the Compressor, helium is compressed using a highly reliable oil lubricated commercial Compressor. Helium purification takes place via several stages of oil removal. The final stage of purification is performed with a replaceable adsorber cartridge.

CTI-CRYOGENICS 9700 Cooling Water System

The water used to cool the Compressor must meet the following specifications:
* Maximum Inlet Temperature: 90°F (32°C)
*** Water conditioning may be required for applications not meeting these requirements.
* Minimum Inlet Temperature: 50°F (10°C)
* Flow Rate: 3.0 ±1.0 gpm (11.4 ± 3.8 lpm)
* Pressure Drop (inlet-to-outlet): see manufacture information
* Maximum Inlet Pressure: 100 psi (6.9 bars)
* Alkalinity: 6.0 - 8.0 pH
* Calcium Carbonate: < 75 ppm