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4. Confirming proper application
Compare the pump’s nameplate data or its performance curve
with the application in which you plan to install it. Will it perform
the way you want it to perform? Also, make sure the application
falls within the following limits.
5. Checking operating conditions
5.1 Fluid temperatures
s
All motors are designed for continuous duty in +104 °F (+40 °C)
ambient air conditions. For higher ambient temperature
conditions consult Grundfos.
* xUBE Shaft Seals are recommended for temperatures above
+200 °F. Pumps with hybrid shaft KUHE seals can only operate
up to +200 °F (+90 °C). Pumps with xUUE shaft seals can be
operated down to –40 °F (–40 °C) (where “x” is the seal type).
5.2 Minimum inlet pressures
5.3 Maximum inlet pressures
* while pump is off or during start-up
** during operation
Type Designed to pump
CR
Hot and chilled water, boiler feed, condensate
return, glycols and solar thermal fluids.
CRI/CRN
Deionized, demineralized and distilled water.
Brackish water and other liquids unsuitable for
contact with iron or copper alloys. (Consult
manufacturer for specific liquid compatibilities.)
CRN-SF
High pressure washdown, reverse osmosis, or other
high pressure applications.
CRT
Salt water, chloride based fluids and fluids approved
for titanium.
Pump
Fluid
Temperatures
CR(I)(N) 1s, 3, 5, 10, 15, and 20
–4 to +248 °F
(–20 to +120 °C)
*CR(N) 32, 45, 64, and 90
–22 to +248 °F
(–30 to +120 °C)
*CR(N) 120 and 150
(up to 60 hp)
–22 to +248 °F
(–30 to +120 °C)
CR(N) 120 and 150
(75 and 100 hp)
+32 to +248 °F
(0 to +120 °C)
CRT 2, 4, 8, 16
–4 to +248 °F
(–20 to +120 °C)
CRN-SF
–4 to +221 °F
(–15 to +105 °C)
with Cool-Top™
up to +356 °F
(+180 °C)
All CR, CRI, CRN NPSHR + 2 feet
CRN-SF 29 psi (2 bar)
Pump Type/
Connection
50 Hz
Stages
60 Hz
Stages
Max.
psi/bar
CR, CRI, CRN 1s 2 to 36 2 to 36 145 / 10
27 217 / 15
CR, CRI, CRN 1 2 to 36 2 to 36 145 / 10
27 217 / 15
CR, CRI, CRN 3 2 to 29 2 to 15 145 / 10
31 to 36 17 to 25 217 / 15
CR, CRI, CRN 5 3 to 16 2 to 9 145 / 10
18 to 36 10 to 24 217 / 15
CR, CRI, CRN 10 1 to 6 1 to 5 116 / 8
7 to 22 6 to 18 145 / 10
CR, CRI, CRN 15 1 to 3 1 to 2 116 / 8
4 to 17 3 to 12 145 / 10
CR, CRI, CRN 20 1 to 3 1 116 / 8
4 to 17 2 to 10 145 / 10
CR, CRN 32 1-1 to 4 1-1 to 2 58 / 4
5-2 to 10 3-2 to 6 145 / 10
11 to 14 7-2 to 11-2 217 / 15
CR, CRN 45 1-1 to 2 1-1 to 1 58 / 4
3-2 to 5 2-2 to 3 145 / 10
6-2 to 13-2 4-2 to 8-1 217 / 15
CR, CRN 64 1-1 to 2-2 1-1 58 / 4
2-1 to 4-2 1 to 2-1 145 / 10
4-1 to 8-1 2 to 5-2 217 / 15
CR, CRN 90 1-1 to 1 58 / 4
2-2 to 3-2 1-1 to 1 145 / 10
3 to 6 2-2 to 4-1 217 / 15
CR, CRN 120 1 to 2-1 1-1 to 1 145 / 10
2 to 5-1 2-2 to 3 217 / 15
6-1 to 7 4-1 to 5-2 290 / 20
CR, CRN 150 1-1 to 1 1-1 145 / 10
2-1 to 4-1 1 to 2 217 / 15
5-2 to 6 3-2 to 4-2 290 / 20
CRT 2 2 to 11 2 to 6 145 / 10
13 to 26 7 to 18 217 / 15
CRT 4 1 to 12 1 to 7 145 / 10
14 to 22 8 to 16 217 / 15
CRT 8 1 to 20 1 to 16 145 / 10
CRT 16 2 to 16 2 to 10 145 / 10
CRN-SF all all 72 / 5*
362 / 25**
Grundfos.bk Page 8 Wednesday, March 18, 2009 10:38 AM