Graham Corporation (Graham) designs, manufactures and sells custom-built vacuum and heat transfer equipment to customers worldwide. Its products include steam jet ejector vacuum systems, surface condensers for steam turbines, vacuum pumps and compressors, various types of heat exchangers, including helical coil heat exchangers marketed under the Heliflow name, and plate and frame heat exchangers. Its products produce a vacuum, condense steam or transfer heat, or perform a combination of these tasks. The products are available in a variety of metals and non-metallic corrosion resistant materials.