Steam Humidifiers ADCA - Direct Steam Humidifiers - DSH ADCA - Direct Steam Humidifiers - DSH The ADCA DSH series of direct steam injection humidifiers are designed to ensure highly efficient and moisture free steam injection in air ducts and AHU for humidification purposes. These units are completely manufactured from corrosion resistant stainless steel, and are available as plug and play packaged solutions or alternatively as individual... View NPT Flanged ISO 7 Rp PN 16 150 lbs DIN ANSI Stainless Steel