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. |
 |
 |
| 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. |
 |
Specifications
| Body Material | A: Aluminum (ADC12) |
S: Stainless Steel (SCS14) |
F:Cast Iron (PP-GF) |
P:GF Polypropylene (PP-GF) |
|
| Diaphragm Material | |||||
| C: Neoprene (CR) |
NDP-P20BAC (854052) |
NDP-P20BSC (854066) |
NDP-P20BPC (854080) |
NDP-P20BPC-FL (854101) |
|
| N: Buna N (NBR) |
NDP-P20BAN (854053) |
NDP-P20BSN (854067) |
NDP-P20BPN (854081) |
NDP-P20BPN-FL (854102) |
|
| E: EPDM | NDP-P20BAE (854054) |
NDP-P20BSE (854068) |
NDP-P20BPE (854082) |
NDP-P20BPE-FL (854103) |
|
| V: Viton(R) (FKM) |
NDP-P20BAV (854055) |
NDP-P20BSV (854069) |
NDP-P20BPV (854083) |
NDP-P20BPV-FL (854104) |
|
| T: PTFE | NDP-P20BAT (854056) |
NDP-P20BST (854070) |
NDP-P20BPT (854084) |
NDP-P20BPT-FL (854105) |
|
| H: Hytrel(R) (TPEE) | NDP-P20BAH (854057) |
NDP-P20BSH (854071) |
NDP-P20BPH (854085) |
NDP-P20BPH-FL (854106) |
|
| S: Santoprene(R) (TPO) | NDP-P20BAS (854058) |
NDP-P20BSS (854072) |
NDP-P20BPS (854086) |
NDP-P20BPS-FL (854107) |
|
| H/T: Hytrel(R) (TPEE) | NDP-P20BAH/T (854213) |
NDP-P20BSH/T (854214) |
NDP-P20BPH/T (854215) |
NDP-P20BPH/T-FL (854216) |
|
| Wetted Parts Material | |||||
| Ball Valve | NDP-P20B○H: NBR NDP-P20B○H/T: PTFE Others: Same as the diaphragm material | ||||
| Valve Seat | SMS1025 | SUS316 | 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) |
|
| Specifications | |||||
| Nominal Diameter | 3/4"(20 mm) | ||||
| Material Connection |
Suction Port | Rc 3/4 | JIS flange 10K 20A equivalent |
||
| 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
◆ Performance Curve
◆ Dimensional Drawings
◆ CAD Data
Parts List
| Body Material | A: Aluminum （ADC12） |
S: Stainless Steel （SCS14） |
P: GF Polypropylene （PP-GF） |
P: GF Polypropylene （PP-GF） |
|
| Diaphragm Material | |||||
| C: Neoprene（CR） | NDP-P20BAC （854052） |
NDP-P20BSC （854066） |
NDP-P20BPC （854080） |
NDP-P20BPC-FL（854101） | |
| N: Buna N（NBR） | NDP-P20BAN （854053） |
NDP-P20BSN （854067） |
NDP-P20BPN （854081） |
NDP-P20BPN-FL（854102） | |
| E: EPDM | NDP-P20BAE （854054） |
NDP-P20BSE （854068） |
NDP-P20BPE （854082） |
NDP-P20BPE-FL（854103） | |
| V: Viton(R)（FKM） | NDP-P20BAV （854055） |
NDP-P20BSV （854069） |
NDP-P20BPV （854083） |
NDP-P20BPV-FL（854104） | |
| T: PTFE | NDP-P20BAT （854056） |
NDP-P20BST （854070） |
NDP-P20BPT （854084） |
NDP-P20BPT-FL（854105） | |
| H: Hytrel(R)（TPEE） | NDP-P20BAH （854057） |
NDP-P20BSH （854071） |
NDP-P20BPH （854085） |
NDP-P20BPH-FL（854106） | |
| S: Santoprene(R)（TPO） | NDP-P20BAS （854058） |
NDP-P20BSS （854072） |
NDP-P20BPS （854086） |
NDP-P20BPS-FL（854107） | |
| H/T: Hytrel(R)（TPEE） | NDP-P20BAH/T （854213） |
NDP-P20BSH/T （854214） |
NDP-P20BPH/T （854215） |
NDP-P20BPH/T-FL（854216） | |