Grundfos ALPHA1 15-50 N 130 - 99415696

Grundfos ALPHA1 Model B Databooklet

Grundfos ALPHA1 high-efficiency circulator pumps are designed for circulating liquids in heating systems. The stainless-steel variant of ALPHA1 is suitable for, for example, domestic hot-water systems. With an energy efficiency index (EEI) at the ErP benchmark for most efficient pumps, it contributes to energy savings.

The pump can operate in proportional-pressure, constant-pressure and constant-curve mode. The control mode is selected using the button on the display. The LEDs indicate the operating status, actual power consumption in watts as well as warnings and alarms.

The design and materials of the pump contribute to a long service life. The pump is self-venting through the system, which contributes to easy commissioning. The compact design, featuring a pump head with an integrated control box, fits into most common installations. The pump and motor form an integral unit without a shaft seal. The bearings are lubricated by the pumped liquid. These design features ensure maintenance-free operation.

Pump housings made of cast iron are electrocoated to improve corrosion resistance. The motor is a synchronous permanent-magnet/compact-stator motor characterised by high efficiency. Pump speed is controlled by an integrated frequency converter incorporated in the control box.

Pumps are supplied with insulating shells to minimise heat loss in heating systems.

Liquid:

• Pumped liquid: Water
• Liquid temperature range: 2 .. 110 °C
• Selected liquid temperature: 60 °C
• Density: 983.2 kg/m³

Technical:

• Rated flow: 1.5 m³/h
• Rated head: 2.8 m
• Maximum head: 50 dm
• TF class: 110
• Approvals: CE,VDE,UKCA
• Model: B

Materials:

• Pump housing: Stainless steel
• EN 1.4308
• ASTM A48M-150B
• Impeller: Composite
• PES 30% GF + PESU-GF20%

Installation:

• Range of ambient temperature: 0 .. 40 °C
• Maximum operating pressure: 10 bar
• Type of connection: G
• Size of connection: 1 1/2 inch
• Pressure rating for connection: PN 10
• Port-to-port length: 130 mm

Electrical data:

• Maximum power input - P1: 3 W
• Powe input P1: 26 W
• Mains frequency: 50/60 Hz
• Rated voltage: 1 x 230 V
• Maximum current consumption: 0.04 .. 0.24 A
• Enclosure class (IEC 34-5): X4D
• Insulation class (IEC 85): F
• Thermal protec: ELEC

Others:

• Energy (EEI): 0.20
• Net weight: 2.04 kg
• Gross weight: 2.2 kg
• Shipping volume: 0.004 m³
• Country of origin: DK
• Custom tariff no.: 84137030