Compact and High Water Discharge!

Safe Design with Intrinsically Explosion-proof Specification. An air-powered diaphragm pump that can transport highly flammable liquids at high pressure. Fully self-suction type that can pump out fluid efficiently, with no pump-priming required. This series of diaphragm pumps are suitable for slurry without the risk of leakage due to seal friction.

■ Main Applications

Collection of Waste Liquid/Sludge/Supply of Paint To Roll Coater/Collection of Cutting Oil/Application of Adhesives/Application of Mold Release Agent/Mold Coating Material

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-20BAC

(851316)

NDP-20BSC

(851321)

NDP-20BPC

(851663)

NDP-20BPC-FL

(853819)

N: Buna N (NBR)

(NBR)

NDP-20BAN

(851317)

NDP-20BSN

(851322)

NDP-20BPN

(852596)

NDP-20BPN-FL

(853820)

E: EPDM(EPDM)

NDP-20BAE

(851318)

NDP-20BSE

(851323)

NDP-20BPE

(852407)

NDP-20BPE-FL

(853821)

V: Viton(R)

(FKM)

NDP-20BAV

(851319)

NDP-20BSV

(851324)

NDP-20BPV

(852597)

NDP-20BPV-FL

(853822)

T: PTFE

NDP-20BAT

(851320)

NDP-20BST

(851325)

NDP-20BPT

(851664)

NDP-20BPT-FL

(853823)

H: Hytrel(R)

(TPEE)

NDP-20BAH

(851729)

NDP-20BSH

(851730)

NDP-20BPH

(851734)

NDP-20BPH-FL

(853824)

S: Santoprene(R)

(TPO)

NDP-20BAS

(852690)

NDP-20BSS

(852691)

NDP-20BPS

(852692)

NDP-20BPS-FL

(853825)

H/T: Hytrel(R)

(TPEE)

NDP-20BAH/T

(851875)

NDP-20BSH/T

(851876)

NDP-20BPH/T

(851877)

NDP-20BPH/T-FL

(853826)

Wetted Parts Material

Ball Valve

NDP-20B〇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-20BAT: A5056

Others: SUS316

SUS316

PP-GF

SUS13 (Insert material)

PP-GF

SUS13 (Insert material)

Specifications

Nominal Diameter

3/4"(20 mm)

Material Connection

Suction Port

Rc 3/4

JIS flange

10K 20A equivalent

Discharge Port

Rc 3/4

JIS flange

10K 20A equivalent

Air Connection

Supply Port

Rc 1/4 (W/air valve)

Exhaust Port

Rc 3/4 (W/silencer)

Air Supply Pressure

0.2~0.7 Mpa *1

Maximum Discharge Pressure

0.7MPa

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-20B○T: 1.5 m Others: 3 m

Net Weight

9.0 kg

14.0 kg

8.0 kg

8.0 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.