Gas Boiler Circulation Pumps
.The pumps are assembled in the hydraulic module of the gas wall hung boiler for heating and cooling system.
An integrated air venting system of the pump can automatically deposits the air out of the water.
.The pumps are of the wet rotor type, the bearings are lubricated by the pumped liquid. The pump is combined by stat or, rotor ,shield cover, air vent valve and so on.
.The pump is suitable for the pumping of clean,
non -corrosive and non- explosive liquids without any solid particles or fibers. The pump must not be used for the transfer of inflammable liquids such diesel oil, petrol or similar liquids.
Flow rate up to 2.5m /h
.Head up to 7m
.Liquid temperature up to +20~+85℃
.Ambient temperature up to +40℃
.Ambient humidity: ＜95%
.Max. System pressure 3bar
.To avoid NHP damage to the bearing of the pump, minimum inlet pressure must be kept as below
Liquid temperature 85℃ 90℃ 95℃
Inlet pressure 0.05bar 0.28bar 0.6bar
0.5mhead 2.8mhead 6mhead
.Two-pole induction motor, 50HZ or 60HZ
.Motor with built -in thermal protector
.Dry running mustn”t be more than 10s
.Insulation class H