​格兰富ALPHA2 25-60 180循环泵

循环泵ALPHA2 25-60 180 适用于 商业供暖， 生活供暖循环， 供热

ALPHA2是用于制热和空调系统的循环泵。AUTOADAPT会让水泵持续适应系统，使其拥有最佳适应度、低能耗和简单的调试。

液体:

输送的液体:   水

液体温度范围:   2 .. 110 °C

运行时的液体温度:   60 °C

密度:   983.2 kg/m³

技术:

额定流量:   1.94 m³/h

额定扬程:   3.28 米

TF等级:   110

Approvals:   VDE,CE,EAC

材料:

泵壳:   铸铁

Pump housing:   EN 1561 EN-GJL-150

泵壳:   ASTM A48M-150B

叶轮:   Composite

    PES 30% GF + PESU-GF20%

安装:

环境温度范围:   0 .. 40 °C

最大运行压力:   10 巴

接口型号:   G

Size of connection:   1 1/2 inch

Pressure rating for pipe connection:   PN 10

Port-to-port length:   180 毫米

电气数据:

最小输入功率——P1:   3 瓦

Power input P1:   34 瓦

电源频率:   50 / 60 Hz

Rated voltage:   1 x 230 V

最大电流:   0.04 .. 0.32 安

封装等级（IEC 34-5）:   X4D

Insulation class (IEC 85):   F

Built-in motor protection:   NONE

其他:

Energy (EEI):   0.17

Terminal box position:   6H

Net weight:   2.49 千克

Gross weight:   2.65 千克

运输体积:   0.004 m3

ALPHA2 25-60 180

High efficiency canned-rotor circulator, designed for circulating liquids in heating systems. 

With a world-class energy efficiency index (EEI) well below the ErP benchmark it ensures substantial

energy savings.

Features

AUTOADAPT which provides the ultimate comfort levels with the lowest possible energy consumption 

and makes the commissioning safe and easy

Night-setback function which saves energy

Manual Summer mode saves energy during summertime and ensure safe start in the heating season

Intuitive one-button operation makes selection of any control mode simple

No external motor protection required reducing installation time

High-torque start improves startup under harsh conditions

Maintenance free due to canned-rotor design and use of robust components

ALPHA plug makes electrical installation quick and easy

Insulating shells are supplied with pumps to minimize heat loss in heating systems

Hydronic balancing by temporary use of the ALPHA Reader and the Grundfos GO Balance App enables the 

installer to perform fast and easy hydronic balancing

When using the ALPHA2 with two other components the ALPHA Reader and the Grundfos GO Balance app, 

it enables the installers to perform fast and easy hydronic balancing - without compromising 

on reliability, efficiency and easy installation.

The AUTOADAPT function continuously adjusts the pump performance to the actual heat demand,

i.e. the size of the system and the changing heat demand during the year. The function will find

the setting that provides optimal comfort with minimal energy consumption. It contributes to fast,

safe and easy commissioning.

In addition, the pump also features three control modes - each with three settings

proportional-pressure control

constant-pressure control

constant-curve mode

The display shows the actual power consumption in Watts or actual flow in m3/h as well

 as alarms and warnings. LEDs indicate the actual operating status.

The night-setback function, when enabled automatically reduces the motor speed to save energy. 

The changeover depends on a change in the flow-pipe temperature.

Manual summer mode; once enabled, the pump is automatically started frequently at low speed 

to avoid blocking the rotor. At the same time, it saves energy.

The pump is of the canned-rotor type, which means that the pump and motor form an integral unit.

 The bearings are lubricated by the pumped liquid ensuring maintenance-free operation. The pump 

features dry-running protection.

The pump has a ceramic shaft and radial bearings, carbon thrust bearing, stainless-steel rotor can, 

bearing plate and rotor cladding, composite impeller, all of which contribute to long life.

The pump is self-venting through the system, which contributes to easy commissioning. The compact 

design featuring pump head with integrated control box and control panel fits into most common 

installations.

The pump housing is made of cast iron and electrocoated to improve the corrosion resistance.

The motor is a synchronous permanent-magnet/compact-stator motor characterized by high efficiency. 

The pump speed is controlled by an integrated frequency converter incorporated in the control box.