Vacuum Products Canada Inc.

Authorized Distributor of    LD Didactic GmbH

Cryogenic Pumps and Systems

We work with a specialty service partner to fully service all the main MRI systems; OMT, Siemens, Toshiba and GE. On-site service includes cold exchange of the cold head in the cryogenic MRI system and exchange of the adsorbers in the compressor unit.

In addition, we offer support for all types of cryogenic systems including Leybold, CTI, Sumitomo, Balzers and APD. We provide on-site or in house preventative maintenance and repair/refurbishment of cold heads and compressors. An example of typical preventative maintenance service is shown below.

Preventative Maintenance of Cryogenic Pumps and Compressors

1. Replacing the displacers in the cold heads
   Setting up a helium purging and filling array
   Disconnecting the supply lines from the cold heads
   Opening the cold heads and removing the inner parts
   Pressure relief for the cold heads
   Removing the motor units
   Checking the control valves
   Removing the guide bushings
   Removing the displacer and cleaning the cold head casings
   Reassembling the cold heads
   Installing new displacers
   Installing the guide bushings
   Installing the motor units
   Restarting
   Evacuating the cold heads
   Purging and filling the cold heads with helium
   Start-up
   
2. Replacing the charcoal adsorbers in the compressor units
   
3. Purging and filling with helium
   Purging and filling the compressor with helium
   Adding helium to the compressor units
   Purging and filling the cold heads with helium

Vacuum Products Canada Inc.    www.vpcinc.ca    1-800-269-6030    reachus@vpcinc.ca    
Copyright Vacuum Products Canada Inc.                                                                                                                                                                                                                                       
Last Modified Wednesday, March 21, 2012