ปั๊มหอยโข่ง EBARA ชนิดใบพัดเดี่ยว รุ่น : CDX : EBARA

คำอธิบาย

ปั๊มหอยโข่ง EBARA ชนิดใบพัดเดี่ยว รุ่น : CDX : EBARA

PERFORMANCE CURVE SPECIFICATIONS
The specifications below qualify the curves shown on the following pages.
Tolerances according to ISO 9906:2012 – Grade 3B
The curves refer to effective speed of asynchronous motors at 50 Hz, 2 poles.
Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity
of  = 1 mm2
/s (1 cSt)
The NPSH curve is an average curve obtained in the same conditions of performance curves.
The continuous curves indicate the recommended working range. The dotted curve is only a guide.
In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best
efficiency point.
Symbols explanation:
Q = volume flow rate
H = total head
P2 = pump power input (shaft power)
 = pump efficiency
NPSH = net positive suction head required by the pump
MEI = minimum efficiency index
The minimum efficiency index (MEI) is a measure of the quality of a pump size in respect to its mean
efficiency. The minimum efficiency index is based on the hydraulic efficiency and on the head at the best
efficiency point.
The efficiency of a pump with trimmed impeller is usually lower than that of a pump with the full impeller
diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced
energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
The operation of these water pumps with variable duty points may be more efficient end economic when
controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.

ปั๊มหอยโข่ง EBARA ชนิดใบพัดเดี่ยว รุ่น : CDX : EBARA

PUMP

Liquid Handled

Type of liquid

Temperature [°C]

Clean water

min. -5

max. +90 for standard version

max. +110 for H – HS – HW – HSW version

max. +120 for E, Q1AEGG, VAEGG, U3U3EGG, Q1U3EGG, U3CEGG

Maximum working pressure [MPa] 0.8

Construction

Impeller Closed centrifugal type

Shaft seal type Mechanical seal

Bearing Sealed ball bearing

Pipe

Connection

Suction from G1″¼ to G1″½ UNI ISO 228-1

Discharge G1″ UNI ISO 228-1

Material

Casing EN 1.4301 (AISI 304) – (AISI 316L only for “L” version)

Impeller EN 1.4301 (AISI 304) – (AISI 316L only for “L” version)

Casing cover EN 1.4301 (AISI 304) – (AISI 316L only for “L” version)

Shaft seal Ceramic/Carbon/NBR (for special versions see page 303)

Shaft AISI 303 / AISI 316L (Wet extension)

Bracket Aluminium

Applicable standard of test ISO 9906:2012 – Grade 3B

MOTOR

Type Electric – TEFC

Single Phase Three Phase

Efficiency level (Reg. 1781/2019) IE2 IE3

No. of Poles 2

Rotation speed [min-1]  2800

Insulation Class F

Protection degree (CEI EN 60034-5) IP 55

Power rating [kW] 0.37 ÷ 1.5 0.37 ÷ 1.8

[HP] 0.5 ÷ 2 0.5 ÷ 2.5

Frequency [Hz] 50

Voltage [V] 230 ±10% 230/400 ±10%

Capacitor Built in –

Over load protection Built in Provided by the user

Casing material Aluminium

Base material/motor support Aluminium

Dimensions of cable entry PG11 – PG13.5 – M16x1.5 – M20x1.5

(see dimensions table page 400)