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You are here: Home / Home / Products / Process / AODD pumps / Guide to model, versions and material

Model Numbers for Yamada Air-Operated Double Diaphragm Pumps

The Model numbers for our AODD pumps from Yamada are created in a way that makes it possible to read the exact version of the pump. Amongst others you can see the pump size, check valve type, body material and diaphragm material.

YAMADA AODD pumps

NDP – __ __ __ __ __

Examples:

NDP-25-BPE NDP-25-BVTU-FLG
25 Size 1″ 25 Size 1″
B Ball valve B Ball valve
P Wet end parts in polypropylene V Wet end parts in polypropylene
E Diaphragm in EPDM TU Diaphragm in PTFE/EPDM
  Threaded manifold FLG Flanged manifold

See the list of AODD pumps

The tables below can be used to identify the exact pump version.

 

Pump size Port type fluids Port type air
Rc thread / flange NPT thread

5

Size 1/4″ (5mm)

Rc thread
(BSPT)
NPT 1/4″

10

Size 3/8″ (10mm)

Rc thread
(NDP10-BP and DP10: BSPT)
NPT 1/4″

15

Size 1/2″ (15mm)

Rc thread
(DP15: NPT)
NPT 1/4″
(DP15: NPT)

20

Size 3/4″ (20mm)

Rc thread NPT 1/4″

25

Size 1″ (25mm)

Rc thread
(NDP25-BV and NDP25-BVT: BSPT)
NPT 3/8″

40

Size 1 ½” (40mm)

Flange + Rc thread NPT 1/2″

50

Size 2″ (50mm)

Flange + Rc thread NPT 3/4″

80

Size 3″ (80mm)

Flange + Rc thread NPT 3/4″

 

Check valve

B

Ball type

F

Flap type

 

Wet end material Max. liquid
temperature
Atex
appr.
Characteristics

A

Aluminium

120° C
Yes
Suitable for many non corrosive liquids without abrasive particles. Low weight.

S

Stainless steel (AISI 316)

120° C
Yes
Suitable for aggressive liquids. High applicability to abrasive media.

F

Cast iron

120° C
Yes
Suitable for many non aggressive media and for transportation of sludge.

P

Polypropylene (PP)

82° C   Not resistant to petrolium-based solvents. Low weight.

T

PTFE

100° C   Resistant to most chemicals. 100% clean PTFE.

V

PVDF

100° C
Yes
High chemical resistens. High material strength. Carbon reinforced.

D

Acetal

82° C
Yes
Among other things, suitable for a variety of solvents. Low weight

 

Diaphragm and check valve material Max. liquid-
temperature
Characteristics

C

Neoprene (CR)

82° C Excellent for non-corrosive abrasive applications

N

Nitril (NBR)

82° C Excellent for petrolium based fluids.

E

Nordel (EPDM)

100° C Excellent for low temperatures, caustics and some acids.

H

Hytrel (TPEE)

120° C Excellent general purpose diaphragm for non-corrosive abrasive applications and high-flex life. FDA compliant material

T

PTFE (Polytetrafluor-ethylene)

100° C Excellent choice for pumping highly aggressive fluids, including solvents.

V

Viton (FPM)

120° C Excellent for aggressive fluids and high temperature applications.

S

Santoprene (TPO)

100° C Excellent for acids or caustics with a very high flex life.

TU

PTFE / EPDM
(High Performance)

100° C Great high performance and easy to clean diaphragm is suitable for very aggressive medias. 3 times better estimated life time compared to standard ptfe diaphragms

 

Additional options – examples:

A

ATEX pumps

HP

2:1 High Pressure pumps

FDA

FDA compliant

FLG

Flanged manifold

I

Split suction manifold

O

Split discharge manifold

Z

Both manifolds split

MPI

Mid suction manifold

MPO

Mid discharge manifold

MPZ

Both manifolds mid

NPT

NPT female thread

PP

Polypropylene motor size 20/25

XS

PTFE coated motor

 

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