NDP-P25 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-P25 series has a nominal diameter of 1" (25 mm) and a maximum flow rate of approximately 160 L/min. The maximum size solid is 3 mm or less.

■ Main Applications
Supply of Chemicals, Pure Water, and Waste Liquids/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.
cspring.jpg resetbtn.jpg

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.
oilfree.jpg

Specifications

Body Material A:Aluminum
(ADC12)
S:Stainless Steel
(SCS14)
P:GF
Polypropylene(PP-GF)
P:GF
Polypropylene(PP-GF)
V: CF
Kynar(R)
(PVDF-CF)
V: CF Kynar(R)(PVDF-CF)
Diaphragm Material
C: Neoprene
(CR)
NDP-P25BAC
(854115)
NDP-P25BSC
(854129)
NDP-P25BPC
(854157)
NDP-P25BPC-FL(854178)
N: Buna N
(NBR)
NDP-P25BAN
(854116)
NDP-P25BSN
(854130)
NDP-P25BPN
(854158)
NDP-P25BPN-FL(854179)
E: EPDM NDP-P25BAE
(854117)
NDP-P25BSE
(854131)
NDP-P25BPE
(854159)
NDP-P25BPE-FL(854180) NDP-P25BVE
(854950)
NDP-P25BVE-FL(854961)
V: Viton(R)
(FKM)
NDP-P25BAV
(854118)
NDP-P25BSV
(854132)
NDP-P25BPV
(854160)
NDP-P25BPV-FL(854181) NDP-P25BVV
(854951)
NDP-P25BVV-FL(854962)
T: PTFE NDP-P25BAT
(854119)
NDP-P25BST
(854133)
NDP-P25BPT
(854161)
NDP-P25BPT-FL(854182) NDP-P25BVT
(854952)
NDP-P25BVT-FL(854963)
H: Hytrel(R) (TPEE) NDP-P25BAH
(854120)
NDP-P25BSH
(854134)
NDP-P25BPH
(854162)
NDP-P25BPH-FL(854183) NDP-P25BVH
(854953)
NDP-P25BVH-FL
(854964 )
S: Santoprene(R) (TPO) NDP-P25BAS
(854121)
NDP-P25BSS
(854135)
NDP-P25BPS
(854163)
NDP-P25BPS-FL
(854184)
H/T: Hytrel(R) (TPEE) NDP-P25BAH/T
(854217)
NDP-P25BSH/T
(854218)
NDP-P25BPH/T
(854220)
NDP-P25BPH/T-FL
(854221)
Wetted Parts Materia
Ball Valve NDP-P25B○H: NBR NDP-P20B○H/T: PTFE
Others: Same as the diaphragm material
Valve Seat SMS1025 SUS316 PP-GF PVDF-CF
Valve Stopper ADC12 SCS14
Center Disk NDP-P20BAT: A5056
Others: SUS316
SUS316 PP-GF
SCS13 (Insert material)
PVDF-CF
SCS13 (Insert material)
Specifications
Nominal Diameter 1" (25 mm)
Material
Connection
Suction Port Rc 1 JIS flange10K 25A equivalent Rc 1 JIS flange 10K 25A equivalent
Discharge Port
Air Connection Supply Port Rc 3/8
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: 500 mL *2 Other diaphragm: 600 mL *2
Maximum Flow Rate 160 L/min *3
Maximum Air Consumption Fluorine resin diaphragm: 1800 L/min (ANR) Other diaphragm: 1600 L/min (ANR)
Maximum Size Solid Maximum 3 mm
Suction Head Lift NDP-P25B○T: 2 m Others: 5 m
Net Weight 11.0 kg 18.0 kg 9.5 kg 9.5 kg 12.0 kg 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. 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

Back to products list