Bơm ly tâm đứng đa tầng Grundfos CR 15-4 A-F-A-E-HQQE | Vertical multistage centrifugal pump
(4KW 2900rpm 3AC 380V 50hz 17m3/h 44m)
Vertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). The pump head and base are in cast iron – all other wetted parts are in stainless steel. A cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Power transmission is via a rigid split coupling. Pipe connection is via DIN flanges.
The pump is fitted with a 3-phase, fan-cooled asynchronous motor.
Further product details
Steel, cast iron and aluminium components have an epoxy-based coating made in a cathodic electro-deposition (CED) process.
CED is a high-quality dip-painting process where an electrical field around the products ensures deposition of paint particles as a thin, well-controlled layer on the surface.
An integral part of the process is a pretreatment.
The entire process consists of these elements:
1) Alkaline-based cleaning.
2) Zinc phosphating.
3) Cathodic electro-deposition.
4) Curing to a dry film thickness 18-22 my m.
The colour code for the finished product is NCS 9000/RAL 9005.
Pump
A standard split coupling connects the pump and motor shaft. It is enclosed in the pump head/motor stool by means of two coupling guards.
--- Vui lòng xem thêm nội dung chi tiết tại link "Thông số kỹ thuật/ Datasheet.." bên dưới.
Technical data
Liquid
Pumped liquid: Water
Liquid temperature range: -20 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³
Technical
Pump speed on which pump data are based: 2917 rpm
Rated flow: 17 m³/h
Rated head: 44.8 m
Pump orientation: Vertical
Shaft seal arrangement: Single
Code for shaft seal: HQQE
Approvals: CE,EAC,UKCA,SEPRO
Approvals for drinking water: WRAS,ACS
Curve tolerance: ISO9906:2012 3B
Materials
Base: Cast iron
EN 1561 EN-GJL-200
ASTM A48-25B
Impeller: Stainless steel
EN 1.4301
AISI 304
Bearing: SIC
Installation:
t max amb: 60 °C
Maximum operating pressure: 16 bar
Max pressure at stated temp: 16 bar / 120 °C
16 bar / -20 °C
Type of connection: DIN
Size of inlet connection: DN 50
Size of outlet connection: DN 50
Pressure rating for connection: PN 25
Flange size for motor: FT130
Electrical data
Motor standard: IEC
Motor type: 112MC
IE Efficiency class: IE3
Rated power - P2: 4 kW
Power (P2) required by pump: 4 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 380-415D V
Rated current: 7.9 A
Starting current: 1000-1110 %
Cos phi - power factor: 0.87-0.87
Rated speed: 2920-2940 rpm
Efficiency: IE3 88,1%
Motor efficiency at full load: 88.1 %
Motor efficiency at 3/4 load: 88.6 %
Motor efficiency at 1/2 load: 85.2 %
Number of poles: 2
Enclosure class (IEC 34-5): 55 Dust/Jetting
Insulation class (IEC 85): F
Motor No: 85U15413
Controls
Frequency converter: NONE
Others:
Minimum efficiency index, MEI ≥: 0.70
Net weight: 72 kg
Gross weight: 94 kg
Shipping volume: 0.234 m³
Danish VVS No.: 385904341
Swedish RSK No.: 5823475
Finnish LVI No.: 4925434
- Xem chi tiết Tài liệu kỹ thuật/ Datasheet Grundfos CR 15-4 A-F-A-E-HQQE
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