Cryogenics

Cold Boxes
Dewars
Purifiers
Vacuum Jacketed Piping
Radiation Shields
Multi-layer Insulation Blankets
Cryostats

 

Cryogenic Pumping Systems
Ability Engineering Technology has a line of economical cryogenic pumps which are available either as a sump pump configuration or as a cold box mount. The pumps are positive displacement vane pumps using graphite composite vanes and bearings. Vanes are spring loaded to insure maximum volumetric flow for a given displacement and allows for operation of the pump at sub-atmospheric conditions for either gas or liquid. Each pump is custom designed for your system and application.

The positive displacement design of the pump allows for high pressure operation at low motor speeds. Motors are easily fitted with variable speed drives or speed controls using a feedback control. The vane pump design is able to handle a small amount of contamination without failure and can be supplied with suction and discharge strainers and filters.

Sump Pump Configuration
The Sump Pump configuration is the most economical design and is ideal for applications using an open mouth dewar as a supply reservoir. It works well in systems used to circulate liquid nitrogen or another cryogen from the liquid source to a system for cooling. For applications at low pressure, the pump is directly coupled to a totally enclosed motor and requires no warm end shaft seal. For higher pressure applications (over 25 psi) a carbon face seal is utilized.

Because of its broad range of capabilities, Ability Engineering Technology can provide the ancillary equipment such as a subcooler, a dewar line filter and vacuum jacketed piping for your particular requirements.

Cold Box Configuration
The pump can be provided for applications where it is required or desirable to have the pump installed in a cold box or vacuum insulated well. In these applications the pump is designed with vacuum leak tight body seals. The motor is externally mounted and can be supplied in variable speed drive. The pump can be configured for liquid or gas service and can be designed for pressures up to 200 psi. For cold gas service, multiple stage pumps can be provided.

Ability Engineering specializes in the design and manufacture of cryogenic equipment including helium dewars, cryostats, and vacuum jacketed piping systems. We have worked with laboratories and universities as well as commercial magnet manufacturers assisting in the design of "state of the art" cryostats for superconducting magnets and test cryostats for the qualification of electronic devices using superfluid helium.

Our experience in the fabrication of cryogenic and vacuum equipment is unsurpassed in the domestic market. We collaborate and team with Cryo
Technologies of Allentown, PA on the fabrication of large vacuum insulated cold boxes and ultra-low heat leak distribution systems for major domestic and international gas suppliers and laboratories. Cryo Technologies specializes in innovative, efficient and cost effective process and mechanical designs for the purification, refrigeration, liquefaction and distribution of helium and other gases. Using state of the art advanced manufacturing techniques; Ability Engineering transforms these designs into world class equipment which operates with unparalleled reliability. In conjunction with Cryo Technologies, we have built helium purifiers, nitrogen liquefiers and large helium liquefiers with capacities up to 1500 liters per hour for a major gas supplier. Visit Cryo Technologies' web site for further information on cryogenic process systems at www.cryotech.net.