Simple Structure for Easy Maintenance!

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. The safety structure does not require explosion-proof measures, so it can be used anywhere. By simply opening and closing the valve, cutting off the flow at the end point is possible or water discharge can be controlled easily and safety. The NDP-40 series has a nominal diameter of 1·1/2" (40 mm) and a maximum flow rate of approximately 400 L/min.
The maximum size solid is 7 mm or less.

■ Main Applications

Collection of Waste Liquid/Sludge/Alcohol/Transfer of Ethanol/Cleaning of Crude Oil and Raw Material Tanks/

Body Material

A: Aluminum

(ADC12)

S: Stainless Steel

(SCS14)

F:Cast Iron

(FC250)

P:GF Polypropylene

(PP-GF)

V:CF Kynar(R)

(PVDF-CF)

Diaphragm Material

C: Neoprene

(CR)

NDP-40BAC

(852655)

NDP-40BSC

(852657)

NDP-40BFC

(852866)

NDP-40BPC

(852659)

-

N: Buna N

(NBR)

NDP-40BAN

(852320)

NDP-40BSN

(852323)

NDP-40BFN

(852862)

NDP-40BPN

(852326)

-

E: EPDM

NDP-40BAE

(852656)

NDP-40BSE

(852658)

NDP-40BFE

(852867)

NDP-40BPE

(852660)

NDP-40BVE

(853863)

V: Viton(R)

(FKM)

NDP-40BAV

(852310)

NDP-40BSV

(852311)

NDP-40BFV

(852865)

NDP-40BPV

(852312)

-

T: PTFE

NDP-40BAT

(852322)

NDP-40BST

(852325)

NDP-40BFT

(852864)

NDP-40BPT

(852328)

NDP-40BVT

(853864)

H: Hytrel(R) (TPEE)

NDP-40BAH

(852321)

NDP-40BSH

(852324)

NDP-40BFH

(852863)

NDP-40BPH

(852327)

-

S: Santoprene(R) (TPO)

NDP-40BAS

(852706)

NDP-40BSS

(852707)

NDP-40BFS

(852868)

NDP-40BPS

(852708)

NDP-40BVS

(853865)

H/T: Hytrel(R) (TPEE)

NDP-40BAH/T

(853025)

NDP-40BSH/T

(853026)

NDP-40BFH/T

(853027)

NDP-40BPH/T

(853028)

-

W: PTFE+EPDM

NDP-40BAW

(855278)

NDP-40BSW

(855281)

NDP-40BFW

(855284)

NDP-40BPW

(855286)

NDP-40BVW

(855290)

Wetted Parts Material

Flat Valve

NDP-40B○H/T,B○W: PTFE Others: Same as the diaphragm material

Valve Seat

NDP-40BAT,BAW:

A5056

Others: Same as the diaphragm material

NDP-40BST,BSW:

SUS316

Others: Same as the diaphragm material

NDP-40BFT: SUS316 Others: Same as the diaphragm material

PP

PTFE

Valve Stopper

Same as the body material (integrated type)

Center Disk

A5056

SUS316

SS400

PP-GF

SCS13

(Insert material)

PVDF-CF

SCS13

(Insert material)

Specifications

Nominal Diameter

1·1/2"(40 mm)

Material Connection

Suction Port

JIS flange 10K 40A equivalent

Rc 1·1/2

JIS flange 10K 40A equivalent

Discharge Port

Air Connection

Supply Port

Rc 1/2 (W/air valve)

Exhaust Port

Rc 1 (W/silencer)

Air Supply Pressure

0.2~0.7 MPa *1

Maximum Discharge Pressure

0.7 MPa

Water Discharge/Cycle

NDP-40B○T: 1400mL *2
NDP-40B○W: 1300mL *2
Other diaphragm: 2800mL *2

NDP-40B○T,B○W: 1400mL *2

Other diaphragm: 2800mL *2

Maximum Flow Rate

Fluorine resin diaphragm: 350 L/min *3
Other diaphragm: 400 L/min *3

Fluorine resin diaphragm: 330 L/min *3
Other diaphragm: 370 L/min *3

Maximum Air Consumption

NDP-40B○W: 5000 L/min (ANR)
Other diaphragm: 4000 L/min (ANR)

NDP-40B○W: 4700 L/min (ANR)
Other diaphragm: 3000 L/min (ANR)

Maximum Size Solid

Maximum 7 mm

Suction Head Lift

NDP-40B○W: 2 m NDP-40B○T: 3 m Others: 5 m

Net Weight

BAT,BAW:

26.5 kg

Others:

27.0 kg

BST,BSW:

41.5 kg

Others:

42.8 kg

BFT,BSW:

46.0 kg

Others:

47.2 kg

BPW:

26.0 kg

Others:

27.0 kg

BVW:

31.0 kg

Others:

32.0 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. The discharge will differ depending on factors such as the liquid to be transferred and the piping conditions.
  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.