Grundfos 99918044 CRN32-7-2 A-G-A-E-HQQE mechanical seal kit for CRN 32 vertical multistage centrifugal pumps. HQQE shaft seal with carbon/silicon carbide faces and EPDM elastomer, single seal arrangement. For use with AISI 316 stainless steel CRN pumps in drinking water applications per NSF/ANSI 61. Kit includes seal and gaskets for 7-stage configuration with 2 reduced-diameter impellers, 2-1/2 inch ANSI flanged connections.

Actual impeller diameter

118.4 mm

Approvals

CURUS

Approvals for drinking water

NSF/ANSI 61

Base

Stainless steel

Bearing

SIC

Code for rubber

E

Code for shaft seal

HQQE

Connect code

G

Cooling

IC 411

Cos phi - power factor

0.89

Curve tolerance

2012 3B

Density

998.2 kg/m³

DOE pump energy index CL

0.87

Enclosure class (IEC 34-5)

IP55

Flange rating inlet

300 lb

Flange size for motor

284TC

Full load SF current

84.5/42.3 A

IE efficiency

IE3 91,7%

IE Efficiency class

IE3 / NEMA Premium

Impeller

Stainless steel

Impellers

7

Insulation class (IEC 85)

F

Liquid temperature range (°C)

-40 - 120

Low NPSH

N

Mains frequency

60 Hz

Material code

A

Max pressure at stated temp (°C)

30 bar / 120

Maximum ambient temperature (°C)

40

Maximum head

185.8 m

Maximum operating pressure (bar)

30

Model

B

Motor efficiency at 1/2 load

91.7 %

Motor efficiency at 3/4 load

91.7 %

Motor efficiency at full load

91.7 %

Motor no

99882384

Motor standard

NEMA

Motor type

WEG

Number of poles

2

Number of reduced-diameter impellers

2

Power (P2) required by pump

22 kW

Pressure rating for connection

PN 40

Product name

CRN 32-7-2 A-G-A-E-HQQE

Product no

99918044

Pump orientation

Vertical

Pump speed on which pump data are based

3521 RPM

Pump version

A

Pumped liquid

Water

Rated current

67.6/33.8 A

Rated flow

36 m³/h

Rated head

144.8 m

Rated power - P2

22 kW

Rated speed

3540 RPM

Rated voltage

3 x 230/460 V

Selected liquid temperature (°C)

20

Service factor

1.25

Shaft seal arrangement

Single

Size of inlet connection

2 1/2 in

Size of outlet connection

2 1/2 in

Stages

7

Starting current

630 %

Support bearing

Graflon

Temperature (°C)

30 bar / -40

Type of connection

ANSI