YTI Cryogenics, Ashford, Conn., has expanded its capability to include the manufacture of Cascade brand replacement refrigerant charges for all Polycold 2 Series models and some Telemark models. A Polycold service and repair center, YTI offers a source for processors in need of Polycold and Telemark refrigerant replacement charges.

YTI has partnered with Stratox Ltd. to formulate stable, nontoxic and nonflammable refrigerant blends for all Polycold and Telemark water-vapor cryo pumps. Since 2000, more than 500 Cascade refrigerant charges have been manufactured. According to the companies, Cascade refrigerants are fully compliant with existing European and U.S. legislation.

Manufactured by Brooks Automation Inc., Polycold cryopumps are used in applications such as the semiconductor industry.