Fire Pump Pressure Switch

The turn on for the main fire pump is a water pressure switch.

Fire pump pressure switch.

1 the jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure. 1 the jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure. Alarm pressure switches which monitor changes in water pressure only. 2 the jockey pump start point should be at least 10 psi 0 68 bar less than the jockey pump stop point.

Although not all jockey pump controllers furnished by these manufacturers use this switch verify the acceptability of this switch as a replacement for other styles. When there s a fire sprinkler heads are going to activate and spray water. The fire pump system when started by pressure drop should be arranged as follows. Replacement jockey pump controller pressure switch the alco controls series ps 1 pressure switch was furnished as standard in various manufacturer s jockey pump controllers including eaton cutler hammer firetrol and joslyn clark.

These serve largely the same purpose as flow switches sounding the alarm when a head or heads have apparently opened. 3 the fire pump start point should be 5 psi 0 34 bar less than the jockey pump start point. Main fire pump pressure switch the purpose main fire pump pressure switch of the main fire pump is to push quantities of fire suppressing water up to the upper floors of a building. Major manufacturers offer two main types of pressure switch.