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NDP-15 Series
  • ndp15.jpg
  • ndp-15ba.jpg
  • ndp-15bs.jpg
  • ndp-15fp.jpg
  • ndp-15fv.jpg

NDP-15 Series

Categories: NDP: Standard

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
CONTACT
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.

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

- Click on a model to see its Performance Curve
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 NDP-15BA□ series uses nylon (PA) as the material for the valve holder. Pay attention to corrosion resistance. Not suitable for MEK etc.

*2 The silencer is built into the pump body. Rc 3/8 screw holes are machined for connecting hoses that lead exhaust air to ducts, etc.

*3 The maximum working pressure of the body with resin-contact parts depends on the liquid temperature. Be sure to check the liquid temperature-maximum working pressure diagram.

*4 The discharge amount is only a guideline. It varies depending on the liquid to be transferred, piping conditions, etc.

*5 Maximum discharge amount is a value that indicates the capacity of the pump. Considering the effect on the life of the diaphragm, we recommend selecting a size with a margin.

*6 NDP-15FP□ and NDP-15FVT are flat valve types and cannot handle slurry liquid.

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