Cirkulācijas sūknis Grundfos Alpha Solar 25-145 180
ALPHA SOLAR ir cirkulācijas sūknis, kas paredzēts saules siltumsistēmām. Tam ir trīs konstantes līknes režīmi, un ātrumu var vadīt arī ar zema sprieguma PWM signālu no saules kontrollera.
High-efficiency canned-rotor circulator pump designed for all kinds of thermal solar systems. The compact design fits into most installations.
Speed can be controlled by a low-voltage PWM (pulse width modulation) signal from a solar controller to optimise the solar harvesting and temperature of the system.
If no PWM signal is available, the pump can be set to operate in constant-curve control mode with three different settings available. Control modes and settings can easily be selected on the operating panel.
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 has a deblocking device accessible from the front of the pump.
The pump housing is available in both cast-iron and stainless-steel versions. Cast-iron pump housing is electrocoated to improve corrosion resistance. Stainless-steel pump housing is ideal for applications where corrosion must be avoided, for example in domestic hot-water applications.