China High Quality HRS-EA(B) Intelligent Circulation Pump Company Suppliers

Operating condition :

1. Apply to heating system

2. Max. system pressure: 3bar

3. Operation condition:

Ambient Temperature: 0°C~40°C

Ambient Humidity: 95%

Liquid Temprature: 20°C~85°C

Ambient temperature must be lower than liquid temperature, in order to avoid condensate water produced in the interior of stator.

4. Liquid: Clean, non-coorosive and non-explosive liquids, without any particle, fiber or mineral oil. Water/Glycol mixtures max. mixing ratio 1:1

5. Dry running no more than 10s

Setting	pump curve	Function
PP1	Lowest proportional- pressure curve	The duty point of the pump will move up or down on the lowest proportional-pressure curve, depending on heating demand.The head(pressure is reduced at falling heating demand and increased at rising heating demand)
PP2	Highest proportional- Pressure curve	The duty point of the pump will move up or down on the highest proportional-pressure curve, depending on heating demand.The head(pressure is reduced at falling heating demand and increased at rising heating demand)
CP1	Lowest constant- Pressure curve	The duty point of the pump will move out or in constant-pressure curve, depending on the heating demand.The head (pressure)is kept constant, irrespective of the heating demand.
CP2	Highest constant- Pressure curve	The duty point of the pump will move out or in constant-pressure curve, depending on the heating demand. The head (pressure) is kept constant, irrespective of the heating demand.
ⅢI	Speed III	Pump runs at a constant speed and consequently on a constant curve.In speed lll, the pump is set to run on the Max. curve underall operating conditions. Quick venting of the pump can be obtained by setting the pump to speed lll for a short period.
Ⅱ	Speed Il	Pump runs at a constant speed and consequently on a constant curve.In speed ll, the pump is set to run on the Medium curve under all operating conditions.
I	Speedl	Pump runs at a constant speed and consequently on a constant curve. In speed l, the pump is set to run on the Min. curve under all operating conditions.
AUTO (EX-factory Setting)		Under"AUTO"mode, the power of pump automatically be up or down according to flow of system in certain condition.
Night Mode		Pump runs select to night mode, after one hour the power automatically down, after two hours, it will be down lowest between 5-10watt, after seven hours, the pump auto mode eliminate and recovery to original condition.

Components :

Part	Material
Pump body	Cast iron
Impeller	PES
Stainless steel cover	304SS
Bearing	Ceramic
Gasket	Rubber
Brass bearing	Brass
Rator	SS&Copper
Ceramic shafting	Ceramic
Shielding	304SS
Stator	Silicon steel&Copper
Motor housing	Aluminum
Hexagon socket screws	Stainless steel
Exhaust screw	Brass
Nameplate	Nylon
Seat of terminal box	Nylon
Cover of termial box	Nylon