NDP-32 series
Compact and High Water Discharge!
Safe Design with Intrinsically Explosion-proof Specification. Has discharge capability equal to or better than the NDP-25. An air-powered diaphragm pump that can transport highly flammable liquids. The lineup includes aluminum models with 40A suction and 32A discharge ports.
Fully self-suction type that can pump out fluid efficiently, with no pump-priming required. The safety structure does not require explosion-proof measures, so it can be used anywhere.
By simply opening and closing the valve, cutting off the flow at the end point is possible or water discharge can be controlled easily and safety.
The NDP-32 series has a maximum flow rate of approximately 190 L/min. The maximum size solid is 3 mm or less.
■ Main Applications
Circulation of Mold Release Agent/Pumping Out Sprays, Factory Wastewater, and Waste Oil/Transfer of Flammable Liquids in Explosion-proof Areas/Supply of Paint to Roll Coater/Drainage from Power Plants/Waste Liquid Collection during Piping and Tank Cleaning/Fuel Transfer in Explosion-proof Area/Transfer of Clay and Glazes/Transfer of Food Ingredients and Additives/Transfer of Alcohol, Disinfectants and Solvents/Supplying Oil, Coolant Fluid, Paint, Etc./Transfer of Anhydrous Powder
Features
■ Independent Left and Right Pilot Valves
These activate the air switch valve at the stroke limit, and are also completely oil-free. Dynamic seals are eliminated as independent left and right types.
It is resistant to abrasion and ensures stable pump operation over a long period of time.
■ Yamada’s Proprietary Design Air Switch Valve “C-Spool”
The air switch valve in the center section of the diaphragm pump is completely oil-free, so it does not require regular lubrication.
The operation assist using a C-spring suppresses stoppages during operation, and achieves stable operation.
◆ Air Switch Valve “C-Spool”
| The C-spring Prevents Stoppages during Operation Achieves stable operation. |
Equipped with a Reset Button Downtime due to pump stoppages in the case of wear of the air switch valve is kept to a minimum. |
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| Completely Oil-free Both the air switch valve and the pilot valve that activates the air switch valve at the stroke limit are designed to be oil-free. Does not require regular lubrication. |
Simple Replacement No need to disassemble the pump when replacing it. |
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Specifications
| Body Material | A: Aluminum (ADC12) |
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| Diaphragm Material | ||
| N: Buna N (CR) | NDP-32BAN (854612) |
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| T: PTFE | NDP-32BAT (854613) |
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| Wetted Parts Material | ||
| Ball Valve | Same as the diaphragm material | |
| Valve Seat | SMS1025 | |
| Valve Stopper | ADC12 | |
| Center Disk | NDP-32BAN: SUS316 NDP-32BAT: A5056 |
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| Specifications | ||
| Nominal Diameter | ||
| Material Connection | Suction Port | Rc 1·1/2 |
| Discharge Port | Rc 1·1/4 | |
| Air Connection | Supply Port | Rc 3/8 |
| Exhaust Port | Rc 3/4 (W/silencer) | |
| Air Supply Pressure | 0.2～0.7Mpa | |
| Maximum Discharge Pressure | 0.7MPa | |
| Water Discharge/Cycle |
NDP-32BAN: 670 mL*1 |
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| Maximum Flow Rate |
NDP-32BAN: 190 L/min*2 |
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| Maximum Air Consumption | 2000 L/min(ANR) | |
| Maximum Size Solid | Maximum 3 mm | |
| Suction Head Lift | NDP-32BAT: 2 m NDP-32BAN: 5 m |
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| Net Weight | 12.0 kg | |
*1 The maximum supply air pressure for a type with a resin-made pump body will depend on the liquid temperature.
*2 The water discharge is provided as a rough approximation only. The discharge will differ depending on factors such as the liquid to be transferred and the piping conditions.
*3 Maximum flow rate is a value indicating the pump capacity. We recommend selecting a size that allows some leeway, taking into account the impact on the life span of the diaphragm.
Dimentional drawing
Performance curve
Downloads
Parts List
| Body Material | A: Aluminum （ADC12） |
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| Diaphragm Material | ||
| N: Buna N（CR） | NDP-32BAN （854612） |
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| T: PTFE（PTFE） | NDP-32BAT （854613） |
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Accessories
◆ Air Unit
2piece set (Air Filter + Regulator)
Removes moisture and debris from the supply air and protects the pump mechanism.
An air filter and regulator are included in one set depending on the usage conditions.
Yamada diaphragm pumps can be operated without lubrication with two sets of air except under the following conditions.
● DP-10 series, NDP-H series
● For continuous operation of minimum 1 hour
● For use with fluids and environments of minimum 70°C
● 2-piece set has a 1/4" inner diameter.
*Prepare the connection materials separately according to the usage conditions.
*Use the dedicated bracket and air hose when attaching to the pump.