The 210CA/211CA is a 2-way normally closed valve used in air, water and steam applications. The 210CA valve is pilot-operated and the 211CA valve is direct-acting.
The 200RC Series is a pilot-operated, 2-way, normally closed valve used for liquid, discharge, or suction gas refrigerant service. It is designed specifically for R-744 refrigeration systems
The 250RA is a 2-way, normally closed diaphragm valve used for liquid, suction, and hot gas service. Upgraded diaphragm design for high temperature applications.