NDP-P20 series (Maximum corrosion resistance)
Maximum Corrosion Resistance Pump!
Safe Design with Intrinsically Explosion-proof Specification. Highly corrosion-resistant polypropylene (PP-GF) is used for the center body. A diaphragm pump that can be used to transport chemicals and a variety of conveying liquids.
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. The NDP-P20 series has a nominal diameter of 3/4" (20 mm) and a maximum flow rate of approximately 110 L/min. The maximum size solid is 2 mm or less.
■ Main Applications
Preparation of Raw Materials (Various solvents)/Transfer of Flammable Liquids in Explosion-proof Areas/Transfer of Food Ingredients and Additives/Supply of Pipe Cleaning Solution/Collection of Waste Oil and Wastewater/Transfer of Alcohol, Disinfectants and Solvents
Features
■ Highly Corrosion-resistant Polypropylene (PP-GF) is Used for the Center Body.
The product is resistant to corrosion and rust, making it suitable for transferring chemicals and a variety of conveying liquids.
■ 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
Click on the model number to download the product datasheet (specifications, dimensions, and performance curves).
| Body Material | A: Aluminum (ADC12) |
S: Stainless Steel (SCS14) |
P:GF Polypropylene (PP-GF) |
P:GF Polypropylene (PP-GF) |
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| Diaphragm Material | |||||
| C: Polychloloprene (CR) | NDP-P20BAC (854052) |
NDP-P20BSC (854066) |
NDP-P20BPC (854080) |
NDP-P20BPC-FL (854101) |
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| N: Buna N (NBR) | NDP-P20BAN (854053) |
NDP-P20BSN (854067) |
NDP-P20BPN (854081) |
NDP-P20BPN-FL (854102) |
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| E: Ethylene Propylene Diene Monomer (EPDM) | NDP-P20BAE (854054) |
NDP-P20BSE (854068) |
NDP-P20BPE (854082) |
NDP-P20BPE-FL (854103) |
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| V: Fluorelastomer (FKM) | NDP-P20BAV (854055) |
NDP-P20BSV (854069) |
NDP-P20BPV (854083) |
NDP-P20BPV-FL (854104) |
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| T: Polytetrafluoroethylene (PTFE) | NDP-P20BAT (854056) |
NDP-P20BST (854070) |
NDP-P20BPT (854084) |
NDP-P20BPT-FL (854105) |
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| H: Thermoplastic Polyester Elastomer (TPEE) | NDP-P20BAH (854057) |
NDP-P20BSH (854071) |
NDP-P20BPH (854085) |
NDP-P20BPH-FL (854106) |
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| S: Thermoplastic Olefinic Elastomer (TPO) | NDP-P20BAS (854058) |
NDP-P20BSS (854072) |
NDP-P20BPS (854086) |
NDP-P20BPS-FL (854107) |
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| H/T: Thermoplastic Polyester Elastomer (TPEE) | NDP-P20BAH/T (854213) |
NDP-P20BSH/T (854214) |
NDP-P20BPH/T (854215) |
NDP-P20BPH/T-FL (854216) |
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| Wetted Parts Material | |||||
| Ball Valve | NDP-P20B○H/T: PTFE Others: Same as the diaphragm material |
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| Valve Seat | SCS14 | SCS14 | PP-GF | PP-GF | |
| Valve Stopper | ADC12 | SCS14 | PP-GF | PP-GF | |
| Center Disk | NDP-P20BAT: A5056 Others: SUS316 | SUS316 | PP-GF SCS13(Insert material) |
PP-GF SCS13(Insert material) |
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| Specifications | |||||
| Nominal Diameter | 3/4"(20 mm) | ||||
| Material Connection |
Suction Port | Rc 3/4 | JIS flange 10K 20A equivalent |
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| Discharge Port | |||||
| Air Connection | Supply Port | Rc 1/4 | |||
| Exhaust Port | Rc 3/4 | ||||
| Air Supply Pressure | 0.2～0.7 MPa ※1 | ||||
| Maximum Discharge Pressure | 0.7 MPa | ||||
| Water Discharge/Cycle | Fluorine resin diaphragm: 240 mL *2 Other diaphragm: 350 mL *2 | ||||
| Maximum Flow Rate | Fluorine resin diaphragm: 100 L/min *3 Other diaphragm: 110 L/min *3 | ||||
| Maximum Air Consumption | Fluorine resin diaphragm: 1400 L/min (ANR) Other diaphragm: 1200 L/min (ANR) | ||||
| Maximum Size Solid | Maximum 2 mm | ||||
| Suction Head Lift | NDP-P20B○T: 1.5 m Others: 3 m | ||||
| Net Weight | 7.5 kg | 12.5 kg | 7.0 kg | 7.0 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. It will differ depending on the usage conditions, etc.
*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
View Parts List and Exploded View NDP-P20
Click to open the parts list page.