Working principle
This series are wrs pump. The wrs pump is an air vent pump. It is equipped with an air vent housing, suitable for use in conjunction with any commercially available automatic air vent, vertical mounting of the air vent at any pump position. Motor overload protection is not required.
The motor operates non-overloading.

Pump installation and application
These pumps are suitable for heating water to vd12035 and water/glycol mixtures up to a ration of 1: 1. They are extremely reliable, economical and quiet to us, being particular suitable for domestic applications such as central heating installations, industrial circulating systems, air condition and chilled water circulation systems, etc.

Ferformance
When designing performance levels for pumps, special attention was given to typical requirements for domestic usage. Performance curves specially designed for high delivery rates at the low installed power ration.

Structural characteristics
Manual 3-speed control
Stainless steel shaft
Non-overloading single phase motor which can be used for a long period under normal operation
Graphite bearings
Rubber ring stationary sealing
Insulation class: F
Operationg limits
Fluid temperature rang
Maximum ambient temperature