 |
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LiqTec™
|
|
The most common cause of
pump failure is dry running. LiqTec ™has a run-dry sensor
that stops the pump immediately if there is no liquid in the
pump. The sensor is easily inserted through the pump head
close
to the shaft seal. |
|
CR(I)(N)1/3/5/10/15/20
CR(N)32/45/64/90 |
FFKM
shaft seal (Kalrez ®)
|
|
Chemically resistant FFKM rubber O-rings. Recommended for
applications where the pumped liquids may damage the
standard O-ring material, in which case all O-rings in shaft
seals and plugs must be replaced. |
|
CR(I)(N)1/3/5/10/15/20
CR(N)32/45/64/90 |
Hybrid shaft seal
|
|
Recommended for applications involving the risk of
dry-running. The stationary seat of the shaft seal is
equipped with an extra special carbon seal face, which
expands at high temperatures; for instance, as a result of
dry-running. This prevents the usual damaging effects of
dry-running such as leakage and noise. Hybrid shaft seal
available as standard in CR(N)32/45/64/90. |
|
CR(N)32/45/64/90 |
High-pressure shaft seal
|
|
Recommended for applications involving pressures between 360
psi/25 bar and 580 psi/40 bar. |
|
CR(N)32/45/64/90 |
Cool-Top™ air cooled shaft seal system
|
|
Recommended for applications involving extremely high
temperatures. No conventional mechanical shaft seal can
withstand liquid temperatures of up to 356 °F (180 °C) for
any length of time. For that type of application, Grundfos’
unique air-cooled shaft seal is recommended.
In order to ensure a low liquid
temperature around the standard shaft seal,the pump is
fitted with a special air-cooled shaft seal chamber. No
separate cooling is required. |
|
CRI,
CRN 1/3/5/10/15/20
CR(N) 32/45/64/90 |
Double shaft seal with pressure chamber
Optional with pressure intensifier or
with Dosing Pump |
|
Recommended for applications involving poisonous or
explosive liquids. Protects the surrounding environment and
the people working in the vicinity of the pump.
Consists of two seals mounted in a
“back-to-back ” arrangement inside a separate pressure seal
chamber. As the pressure in the chamber is higher than the
pump pressure, leakage is prevented. A dosing pump or a
special pressure-intensifier generates the seal chamber
pressure. |
|
CRI,
CRN 1/3/5/10/15/20
CR(N)32/45/64/90
|
Double shaft seal with flushing chamber (quench seal)
|
|
Recommended or applications involving a high risk of
crystallization (sugar water)or hardening (oil products).
Consists of two seals mounted in a tandem
arrangement inside a rinsing chamber,connected to an
external rinsing source. |
|
CR(I)(N)1/3/5/10/15/20
CR(N) 32/45/64/90 |
SiC/SiC
shaft seal for CRT
|
|
Recommended for applications involving a high risk of
corrosion. Available in EPDM, FKM, NBR qualities. |
|
CRT
2/4/8/16 |
| CR
MAG Drive |
|
Magnetic drive pumps or industrial applications. Key
applications are industrial process pumps handling
aggressive, environmentally dangerous or volatile liquids,
e.g.organic compounds, solvents, and the like. |
|
CRI,
CRN 1/3/5 |
