What is jockey pump controller?
A jockey pump is a small pump connected to a fire sprinkler system to maintain pressure in the sprinkler pipes. This is to ensure that if a fire-sprinkler is activated, there will be a pressure drop, which will be sensed by the fire pumps automatic controller, which will cause the fire pump to start.
What is the on/off control for jockey pump?
The jockey pump controller has a Hand-Off-Auto selector switch on the right hand side of the controller. Placing the switch in the Hand position will energize the motor starter and the motor will run continuously until the switch is placed in the Off position.
Does jockey pump require emergency power?
Also, please confirm the Jockey pump does not require backup power.
What is jockey pump used for?
A jockey pump, also know as a pressure maintenance pump, maintains the pressure in the fire sprinkler system to avoid non-emergency starting of the main fire pump. This keeps the main fire pump from short cycling, which shortens its life span.
Why jockey pump is used?
Jockey (Compensation) Pump: The purpose of a jockey pump is to maintain pressure in a fire protection piping system so the larger fire pump does not need to run to compensate for minor leaks in the water circuit.
What is a fire pump controller?
Fire pump controllers These are control panels containing electrical components such as circuit breaker, switches, relays and other devices dedicated to the operation of fire pumps. Fire pump controllers suitable for use as service equipment are marked accordingly.
How do you check a Jockey pump?
Verify start and stop settings on the pressure maintenance pump (jockey pump) by dropping the pressure in the jockey pump sensing line. After completing all inspection procedures, start the pump by slowly dropping the pressure in the controller sensing line. The pump should be run a minimum of 30 minutes.
How do you size a fire jockey pump?
“The pump manufacturer, Armstrong pumps, recommends, as a rule of thumb, to size the jockey for about 1 % of the rated flow of the main fire water pump. Also they recommend that jockey to be sized with 10 psi (0.7 bar) higher pressure than the system design pressure of the firewater ring.”
Does a fire pump controller require a neutral?
The Utility Xfmr. also feeds the Fire Pump Controller (3 Pole ATS) for normal power. The generator supplies an emergency feed to the F.P Controller (3P-ATS), apparently they do not make 4 Pole Fire Pump Controller ATS’s since the F.P. motors are 3 Phase 480 volt and a neutral is not needed.
How do you start an emergency fire pump?
Diesel power source of pump started in cold condition of 0° C by hand or by power at least 6 times within a period of 30 minutes and at least twice within 1st 10 minutes. Tank to have sufficient fuel for at least 3 hours and reserve fuel outside main machinery space to allow the pump to run for additional 15 hours.
Do you need a controller for a jockey pump?
The controller for a jockey pump shall be listed but shall not be required to be listed for fire pump service. The jockey pump shall not be required to have alternate or standby power.
What is the flow rate of a jockey pump?
Then the jockey pump flow rate is 1500 gpm * 1% = 15 gpm.
How big is the pressure sensing line on a jockey pump?
Jockey pump shall have its own individual pressure sensing line (15 mm) nominal size made between its discharge check & isolation valve. For more information about sensing line, click here.
Where is the isolation valve on a jockey pump?
An isolation valve shall be installed on the suction side of the jockey pump to isolate the pump for repair. A check valve and isolation valve shall be installed in the discharge pipe of the jockey pump. Valves and components for the jockey pump shall not be required to be listed.