Yamada Diaphragm Pump. Model: NDP-25BST-FDA. Pump capacities: 49 gpm, air supply press: 20 to 100 psi. Material of construction: 316 stainless steel. Maximum cycles per minute: 210. Maximum liquid temperature: 212°F. Maximum size solid: 3/16 in. Inlets/outlets: (2) 1-1/2 in. “S” line. Air inlet: ½ in. threaded female; air outlet: 1 in. threaded female. Overall dimensions: 11-1/2 in. L x 8-1/2 in. W x 14-1/2 in. H.(ACN10).