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Grundfos CM5-5 Grundfos CM5-5 Grundfos CM5-5 Grundfos CM5-5

Grundfos : CM 5-5 A-R-A-E-AVBE F-A-A-N

Product No.: 98694013

Compact, reliable, horizontal, multistage, end-suction centrifugal pump with axial suction port and radial discharge port. The shaft, impellers and chambers are made of stainless steel. The inlet and discharge parts are made of cast iron. The mechanical shaft seal is a special designed, unbalanced O-ring seal. Pipework connection is via internal Whitworth pipe threads, Rp (ISO 7/1).

The pump is fitted with a 3-phase, foot-mounted, fan-cooled asynchronous motor.

Further product details
Pump and motor are integrated in a compact and user-friendly design. The pump is fitted to a low base plate, making it ideal for installation in systems where compactness is important.

The state-of-the-art design and materials of the shaft seal ensure high wear resistance, improved sticking and dry-running capabilities and long operating life.

Servicing the pump requires no special service tools. Service parts are in stock for quick delivery and are available as kits, single parts or bulk. Service videos are available on www.youtube.com.

Pump
A combination of a stop ring and a Nord-lock® washer secures a tight and reliable fixation of the impeller spacing pipes to the splined pump shaft. It is possible to remove and fit the hydraulic parts from the pump side. The inlet part, chambers and discharge part are hold together by four staybolts.

The pump is fitted with an unbalanced O-ring seal with a rigid torque-transmission system. It has a fixed seal driver ensuring a reliable rotation of all parts. The dynamic secondary seal is an O-ring.

Primary seal:
• Rotating seal ring material: aluminium oxide (alumina)
• Stationary seat material: carbon graphite, resin-impregnated

Carbon graphite against alumina is a good all-round seal for not too demanding applications. The corrosion resistance is often limited in water to a range between pH 5 and pH 10. Usage in liquids above 90 °C is not recommended. The seal can handle dry-running conditions for short periods.

Secondary seal material: EPDM (ethylene-propylene rubber) EPDM has excellent resistance to hot water. EPDM is not suitable for mineral oils.

The pump shaft is connected to the motor shaft through a left thread and tight fit. The shaft cannot be dismantled.

Motor

The motor is a totally enclosed, fan-cooled motor with principal dimensions to EN 50347. Electrical tolerances comply with EN 60034.

The motor efficiency is classified as IE3 in accordance with IEC 60034-30-1. An installation indicator is fitted to the motor fan cover. Based on the motor cooling air, it indicates the direction of rotation of the motor. The motor is fitted with a directional sticker.

Technical data
Controls
Frequency converter NONE
Liquid
Pumped liquid Water
Liquid temperature range -20 .. 90 °C
Selected liquid temperature 20 °C
Density 998.2 kg/m³
Technical
Pump speed on which pump data are based 2900 rpm
Rated flow 10 m³/h
Rated head 40.51 m
Code for shaft seal AVBE
Approvals CE,WRAS,ACS,EAC
Curve tolerance ISO9906:2012 3B
Technical
Pump housing Cast iron
EN-GJL-200
ASTM A48-25A
Impeller Stainless steel
EN 1.4301
AISI 304
Installation
Range of ambient temperature -20 .. 55 °C
Maximum operating pressure 10 bar
Max pressure at stated temp 10 bar / 40 °C
6 bar / 90 °C
Type of connection Rp
Size of inlet connection 11/2 inch
Size of outlet connection 11/2 inch
Outlet position 12
Electrical data
Motor standard IEC
Frame size 90LE
IE efficiency class IE3
Rated power – P2 2.2 kW
Mains frequency 50 Hz
Suitable for 50/60 Hz N
Phases 3
Rated voltage 220-240D/380-415Y V
Service factor 1.0
Rated current 8.00/4.60 A
Starting current 840-920 %
Rated speed 2890-2910 rpm
Enclosure class (IEC 34-5) IP55
Insulation class (IEC 85) F
Built-in motor protectiontd NONE
Cable included (Yes/No) N
Others
Terminal box position 12
Minimum efficiency index, MEI ≥ 0.7
Net weight 35 kg
Gross weight 37.5 kg

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