Warranty; Assistance; How To Use The Documentation Supplied; Description - Pentair DHR Series Instruction Manual

1.9 WARRANTY

NOTE
Installation, adjustment and maintenance operations that have not been authorised and/or performed by unskilled
personnel will invalidate the warranty.

1.10 ASSISTANCE

WARNNG
If the pump has been used with noxious or toxic fluids, the pump will be classified as polluted and PENTAIR INTERNATIONAL
S.a.r.l. will have the right to refuse offering its assistance for the pump.
For all assistance requests, contact:
PENTAIR INTERNATIONAL Sarl – Servizio Assistenza
Via Masaccio, 13
56010 Lugnano - PISA - ITALY
Tel. 050/71.61.11 - Fax 050/70.31.37

1.11 HOW TO USE THE DOCUMENTATION SUPPLIED

Operators should carefully read the documentation supplied before performing any operation on the machine.
The documentation supplied should be kept along with the machine until it is dismantled, so that it is available in case of need.
If the used machine is sold, it will be necessary to supply all the documentation enclosed.
CHAPTER 2

DESCRIPTION

2.1 DESCRIPTION
2.1.1 ARCHITECTURE AND OPERATING PRINCIPLES
•
DHR electropumps are horizontal
centrifugal multi-stage electropumps
with suction and delivery mouths
arranged at 90°
2.1.2 MACHINE FRAME
•
The suction flange and the pump
casing of electropumps DHR are in cast
iron GG20
•
The shaft, the impellers and the
diffusers of electropumps DHR are in
stainless steel AISI 304
•
DHR electropumps are directly coupled
to an asynchronous electric motor or
to a three-phase motor with closed
casing and external ventilation
•
The mechanical seals of electropump
DHR are constituted by sliding
backfaces in graphite/ceramics
•
DHR electropumps are self-priming
and don't require a priming procedure
•
The gaskets of electropumps DHR are
in NBR rubber and paper
EN
23