PHPK designs, manufactures and engineers all types of cryogenic equipment, including special orders. Products include helium refrigerators, vacuum insulated piping, cryogenic couplings, vacuum seal-off valves, hinge and gimbal expansion joints, filter assemblies and cryogenic valves. Located in Westerville, OH and Costa Mesa, CA.

Laboratory equipment for the production of LN2 and LOX using Solvay, PTR, and multibed-PSA systems. Also cold heads and cold traps. In Hampton, Virginia.

A manufacturer of cryogenic and vacuum equipment, and also medical and processing industries equipment. Belgrade, Serbia-Yugoslavia.

Specialists in cryogenic liquids and equipment. Also provide petrochemicals, oil and gas, and engineering services. In Singapore.

Supplier of custom-engineered cryogenic and non-cryogenic process equipment to the industrial gas industry and scientific community. Allentown, PA.

Cylinder products and services, including cryogenic cylinder maintenance,repair, testing, and sales. In Aurora, Illinois.

Electrical and optical ceramic-to-metal seal components for high and ultrahigh vacuum corrosive and cryogenic applications.

Supplier of Displex and Heli-tran open and closed cycle cryostats for research. Also supplies instrumentation and customized interfaces and provides integration with temperature controllers and other accessories. In Allentown, PA. (NOT the same company as ARS Associates.)

Manufacturer's representative in the fields of cryogenics, vacuum/semiconductor process equipment, and superconductivity. Cryogenic equipment includes cryogenic containers, sensors, and control systems. In Allentown, PA. (NOT the same company as Advanced Research Systems)

Seller of new & used vacuum equipment, including cryopumps and cold heads. In Sarasota, Florida.