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.
| 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 | |
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 |
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 |