| Nominal diameter | 3/4 ″ (20A) | |
| Material connection | Inlet | JIS 10K 20A equivalent * | 
| Discharge port | JIS 10K 20A equivalent * | |
| Air connection | Supply port | Rc1 / 4 (with air cock) | 
| exhaust port | Rc3 / 4 (with muffler) | |
| Service air pressure | 0.2 to 0.7 MPa | |
| Discharge pressure | 0.7MPa | |
| Discharge rate / cycle | Rubber diaphragm type: 350mL | |
| Fluororesin diaphragm type: 240mL | ||
| Slurry limit (maximum passing particle diameter) | 2mm or less | |
| Mass | 
				-20BA □ NDP: 9.0Kg NDP-20BS □: 14.0Kg NDP-20BP □: 8.0Kg  | 
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