Fire Pump Pressure Switch Setting

60 psi from city maximum static iii.

Fire pump pressure switch setting. Let s say the pressure is 150 psi. Pressure settings for fire pump controllers. Examples of fire pump settings. 50 psi from city minimum static.

2 the jockey pump start point should be at least 10 psi 0 68 bar less than the jockey pump stop point. A sudden massive amount of water. Jockey pump would be set to come on at 140 psi and shut off at 150 psi. Start the fire pump and note the maximum pressure on the discharge gauge.

The pressure operated switch in the controller should be sensitive enough to permit this range to be as short as 10 to 13 psi. The fire pump system when started by pressure drop should be arranged as follows. Nfpa 20 s pressure switch settings for fire and jockey pump settings are required to be relatively close to help eliminate water hammer on start up. Fire fighter vinod choudhary 33 372 views 29 33.

1000 gpm 100 psi pump with churn pressure of 115 psi ii. Fire pump stop 115 psi 50 psi 165 psi vi. Jockey pump start 165 psi 10 psi 155 psi v. To assure that the fire pump runs when it is supposed to and the jockey pump won t interfere with fire protection the fire pump sensing system should be set up in this arrangement.

1 the jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure. Jockey pump stop 115 psi 50 psi 165 psi iv. 1 the jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure.