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ERV Series
Vertical plastic process pumps for wet-pit
mounting
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DESIGN FEATURES
Vertical centrifugal pumps for wet-pit mounting with
indipendent discharge pipe.
The column is of thick-walled plastic tubular construction.
The driving shaft, made of metal faced with coating,
is mounted at one end on radial and thrust ball bearings
(protected by a special radial packing seal) and, at
the other end, on a ceramic sliding bushing and a teflon
or graphite bearing. For those pumps having axis lenght
exceeding 2m., an intermediate bearing is provided running
in the process liquid (acting as the bearing lubricant),
as well as a ceramic sliding bushing and a teflon or
graphite bearing.
The pump casing and the impeller are drop-forged for
thick-walled resine (with inside metallic frame); the
other components are machined from barstock.
The motor is connected to the pump through a flexible
coupling. The metal parts are protected by an epoxy
coating. The discharge pipe is parallel to the column
and is fitted to the plastic thank cover.
No metal part is in contact with the process liquid. |
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SPECIFICATIONS
- axial suction and radial discharge
- open-type radial flow impeller
- volute-type pump casing
CAPACITY up to 48 cu.m/h
PREVALENZA fino a 32 m
MAX OPERATING TEMPERATURE in accordance with the type
of plastic employed
AXIS LENGHT (distance between base-plate and suction
port) up to 3m. |
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MATERIALS OF CONSTRUCTION
- POLYPROPYLENE (moplen)
- POLYVINYLCHLORIDE (P.V.C.) |
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| POS |
DETAIL NAME |
| 1 |
STRAINER |
| 5 |
CASING |
| 6 |
IMPELLER |
| 7 |
CASING COVER |
| 7a |
O-RING |
| 17 |
SLEEVE |
| 19 |
NOSE
SCREW |
| 19a |
O-RING |
| 30 |
BEARING
HOUSING |
| 32 |
BEARING COVER |
| 55 |
SHAFT
SEALING RING |
| 59 |
BEARING |
| 95 |
COLUMN
FLANGE |
| 96 |
SUPPORT PLATE |
| 98 |
COLUMN |
| 110 |
SLIDING BUSH |
| 111 |
WEAR
BUSH |
| 117 |
SHAFT |
| 140 |
SELFLOCKING
NUT |
| 151 |
SPACER FOR BEARING |
| 202 |
LIP PACKING |
| 203 |
RING NUT |
| 204 |
RING
NUT |
| 205 |
THREADED RING |
| 206 |
SPACER
FOR SEAL |
| 207 |
SLIDING BUSH RING |
| 207a |
O-RING |
| 207b |
O-RING |
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