NDP-15 series
NDP-15 series
Lightweight and Compact!
Safe Design with Intrinsically Explosion-proof Specification. An air-powered diaphragm pump that can transport highly flammable liquids. Fully self-suction type that can pump out fluid efficiently, with no pump-priming required.
There are no sliding parts in wetted parts, eliminating the risk of liquid leakage due to seal friction.
The NDP-15 series has a nominal diameter of 1/2″ (15 mm) and a maximum flow rate of approximately 50 L/min.
The maximum size solid is 1 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) | S: Stainless Steel (SCS14) | P: GF Polypropylene (PP-GF) | V: CF Kynar(R) (PVDF-CF) | |
| Diaphragm Material | |||||
| C: Neoprene (CR) | NDP-15BAC (851946) | NDP-15BSC (851958) | NDP-15FPC (851903) | － | |
| N: Buna N (NBR) | NDP-15BAN (851947) | NDP-15BSN (851959) | NDP-15FPN (851943) | － | |
| T: PTFE | NDP-15BAT (851945) | NDP-15BST (851957) | NDP-15FPT (851698) | NDP-15FVT (852141) | |
| H: Hytrel(R) (TPEE) | NDP-15BAH (851948) | NDP-15BSH (851960) | NDP-15FPH (851905) | － | |
| S: Santoprene(R) (TPO) | NDP-15BAS (852680) | NDP-15BSS (852681) | NDP-15FPS (852683) | － | |
| H/T: Hytrel(R) (TPEE) | NDP-15BAH/T (853022) | NDP-15BSH/T (853023) | － | － | |
| Wetted Parts Material | |||||
| Ball Valve | NDP-15B〇H/T: PTFE Others: Same as the diaphragm material | － | － | ||
| Flat Valve | － | － | PTFE | ||
| Valve Seat | A5056 | SUS316 | PP-GF | PVDF-CF | |
| Valve Stopper | PA ※1 | SCS14 | PP-GF | PVDF-CF | |
| Center Disk | A5056 | SUS316 | PP-GF SUS304 (Insert material) | PVDF-CF SUS304 (Insert material) | |
| Specifications | |||||
| Nominal Diameter | 1/2″(15mm) | ||||
| Material Connection | Suction Port | Rc1/2 | |||
| Discharge Port | Rc1/2 | ||||
| Air Connection | Supply Port | Rc1/4(W/air valve) | |||
| Exhaust Port | Rc3/8 (Silencer built-in) *2 | ||||
| Air Supply Pressure | 0.2~0.7 Mpa *3 | ||||
| Maximum Discharge Pressure | 0.7MPa | ||||
| Water Discharge/Cycle | 70 mL *4 | ||||
| Maximum Flow Rate | 50L/min *5 | 45L/min *5 | |||
| Maximum Air Consumption | 450 L/min | 350 L/min | |||
| Maximum Size Solid | Maximum 1 mm *6 | ||||
| Suction Head Lift | 1m | ||||
| Net Weight | 4.1 kg | 6.3 kg | 3.5 kg | 4.3 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.
