The design of the NDP-15 air operated double diaphragm pump provides high suction lift, even at dry startup and with heavier fluids (incorporating internal check valves). No close fitting or sliding parts are at risk – the pump can run dry without damage. Pumps will run at any setting within their operating range simply by adjusting the air inlet pressure and system conditions. One pump can fit a broad spectrum of applications. Pumps transport easily to the application site. No complex controls to install or operate, simply connect an air supply, attach fluid connections, and the pump is ready to perform.
| 13.5 GPM Max. Port Dimensions | Intake & discharge connection: Polypropylene (PPG) ■ 1/2″ Female NPT Kynar® (PVDF)◆ 1/2″ Female NPT Groundable Acetal ◆ 1/2″ Female NPT Aluminum (ADC-12) ▲ 1/2″ Female NPT Stainless Steel (316) ▲ 1/2″ Female NPT Air inlet (includes ball valve): 1/4″ Female NPT Air exhaust (internal silencer): 3/8″ Female NPT ■ Polypropylene pumps may be fitted with ball or flat check valves. Ball-type check valves are recommended for flooded suction applications. Flat-type check valves are recommended for suction lift applications. ◆ Kynar® and Groundable Acetal pumps are fitted with flat check valves only. ▲ Aluminum and Stainless Steel pumps are fitted with ball check valves only. |
| Maximum Liquid Temperature | Diaphragm Material Temperature Buna N 180°F (82°C) Neoprene 180°F (82°C) Santoprene® (TPO) 180°F (82°C) PTFE 212°F (100°C) Hytrel® (TPEE) 248°F (120°C) Viton® fluoroelastomer 248°F (120°C)fitted pumps is determined by the elastomer (diaphragm material). Polypropylene and Groundable Acetal pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material. |
| Air Supply Pressure (All Models) | 20–100 PSI (1.4–7 kfg/cm) |
| Discharge Volume Per Cycle | 0.0338 gallons (128 cc) |
| Maximum Cycles Per Minute | All diaphragms: 400 |
| Maximum Size Solid | 1/32″ (1 mm) |
| Maximum Dry Suction Lift | Flat-type check valve: 8-feet Ball-type check valve: 5-feet |
| Air Motor | Ryton® air motor standard |
