Drum Pump (Special specifications)

Convenient for Small Portioning Work from Drum Containers!
Safe Design with Intrinsically Explosion-Proof Specification.

A drum type diaphragm pump that is fitted in a drum container, allowing for the safe transfer of fuel and other solvents. The pump can be used with ease by simply inserting a suction pipe into the 2B bung of the drum container, and securing it with the included bung adaptor.
The DP-10B〇□-D series has a nominal diameter of 3/8" (10 mm), a maximum flow rate of approximately 18 L/min and a maximum size solid of 1 mm or less.
The NDP-20B〇□-D series has a nominal diameter of 3/4" (20 mm), a maximum flow rate of approximately 90 L/min and a maximum size solid of 2 mm or less.

Purchase the hose and discharge valve separately in accordance with the usage application.
Only aluminum (ADC12/AC2A/SGP) is available as the body material for the NDP-20 series, due to the net weight and operation aspects.
The suction tube method is recommended for the SUS material model.

■ Main Applications
Transfer of Fuel and Other Solvents from Drum Containers

Features

■ Convenient for Small Portioning Work from Drum Containers
Designed in a form that is easy to use for drum containers, based on the DP-10/NDP-20 series diaphragm pump.
The pump can be used with ease by simply inserting a suction pipe into the 2B bung of the drum container, and securing it with the included bung adaptor.

■ 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 abrasion 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/SUS304)
S: Stainless Steel
(SCS14/SUS304)
A: Aluminum
(ADC12/AC2A/SGP)
Diaphragm Material
C: Neoprene
(CR)
DP-10BAC-D
(852918)
DP-10BSC-D
(852921)
NDP-20BAC-D
(851397)
N: Buna N
(NBR)
DP-10BAN-D
(852919)
DP-10BSN-D
(852922)
NDP-20BAN-D
(851396)
T: PTFE
DP-10BAT-D
(852920)
DP-10BST-D
(852923)
NDP-20BAT-D
(851398)
H: Hytrel (R)
(TPEE)
DP-10BAH-D
(852934)
DP-10BSH-D
(852935)
NDP-20BAH-D
(852827)
Wetted Parts Material
Refer to the DP-10/NDP-20 specification table
Specifications
Nominal Diameter 3/8" (10 mm) 3/4" (20 mm)
Material Connection
Suction Port Ø17.3 O.D. Ø34 O.D.
Discharge Port Rc 3/8 Rc 3/4
Air Connection
Supply Port Rc 1/4 (W/air valve) Rc 1/4 (W/air valve)
Exhaust Port Rc 3/8 (W/silencer) Rc 3/4 (W/silencer)
Air Supply Pressure 0.2~0.7 MPa
Maximum Discharge Pressure 0.7 MPa
Water Discharge/Cycle 50 mL *1 NDP-20BAT-D: 240 mL
Others: 350 mL
Maximum Flow Rate 18 L/min *2 NDP-20BAT-D: 85 L/min
Others: 90 L/min
Maximum Air Consumption 300 L/min (ANR) NDP-20BAT-D: 1300 L/min (ANR)
Others: 1200 L/min (ANR)
Maximum Size Solid Maximum 1 mm Maximum 2 mm
Net Weight 4.5 kg 6.2 kg 10.7 kg
Accessory *3 Suction pipe: 713237 (SUS304)
Bung adaptor: 803665 (ADC12) *4
Suction pipe: 709406 (SGP)
Bung adaptor: 803667 (SS400)

*1 The water discharge is provided as a rough approximation only. It will differ depending on the usage conditions, etc.

*2 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.

*3 The hose and gun are not included. Please purchase separately.

*4 The standard material of the bung adaptor for the DP-10-D series is “ADC12/A5056” aluminum. We build to order it with SUS304 for handling chemicals, by special order.

Dimentional drawing

Performance curve

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