Single-stage, centrifugal monoblock pumps type MVA, MVB
Application
Th e MVA and MVB pumps are used for pumping low-viscosity nonfl ammable non-explosive liquids which are clean or contain only trace amounts of impurities.
The MVA and MVB pumps find application in:
- water supply systems and water mains,
- pressure boosting systems
- boiler feedwater systems and condensing boiler systems
- air-conditioning, central heating and water circulation systems
- industry
- fi re-fi ghting systems
Basic technical data
Capacity |
up to 500 m3/h |
Delivery head |
up to 95 m |
Temperature of pumped liquid |
from -10 up to +110oC |
Working pressure |
10 bar (16 bar) |
R.P.M. |
MVA - 3000, MVB 1500 |
Motor power rating * |
up to 55 KW |
Shaft seal |
Mechanical seal |
Suction fl ange |
DN 50 ... DN 200 mm |
Discharge fl ange |
DN 32 ... DN 150 mm |
* You can use motors above 55kW - please contact us technical department
Th e MVA and MVB series are single-stage, centrifugal, suction, monoblock pumps where the impeller and
pump share the same shaft.
Main dimensions and rated parameters conform to EN 733 (previously DIN 24255).
Suction and discharge fl anges comply with ISO 7005-2/PN 16.
MVA and MVB pumps are directly connected with electric motors which comply with VDI and IEC standards.
Due to special modular design, the motor, sealing cover and impeller can be removed without the need to dismantle the volute casing.
The MVA and MVB monoblock pumps are lighter and smaller when compared to the normal centrifugal pumps of similar hydraulic performance.
Product marking structure
MVA-100-200/1.d.ee1e1e2.h.iii.k
MVA-100-200 |
- Pump type (designation acc. to EN 733) (example) |
1 |
- Impeller trimming |
d |
- Material execution |
e e1 e1 e2 |
- Constructional execution |
h |
- Completeness of supply |
i i i |
- Motor selection |
k |
- Finishing |
Material execution
Pump part |
Materials "d" |
A |
B |
C |
D |
E |
F |
Casing |
Grey cast iron |
Grey cast iron |
Tin bronze |
Stainless cast steel |
Spheroidal cast iron |
Carbon cast steel |
Sealing body |
Grey cast iron |
Grey cast iron |
Tin bronze |
Stainless cast steel |
Spheroidal cast iron |
Carbon cast steel |
Impeller |
Grey cast iron |
Bronze |
Tin bronze |
Stainless cast steel |
Spheroidal cast iron |
Carbon cast steel |
Shaft |
Stainless steel |
Stainless steel |
Stainless steel |
Stainless steel |
Stainless steel |
Stainless steel |
Bearing housing |
Grey cast iron |
Grey cast iron |
Grey cast iron |
Grey cast iron |
Spheroidal cast iron |
Carbon cast steel |
Constructional execuion
Pump constructional execution |
Name of tconstructional execution |
e
|
0
|
reserve
|
e1e1
|
10-12
|
single mechanical sealing
|
20-22
|
single mechanical sealing, impeller with mouth ring
|
e2
|
1
|
for liquids up to +110oC
|
Possible operating positions
|