Very nice explanation, There should be a strainer on suction line Additionally What are the roles of sensing lines which are going to controller, These lines ll be water filled ?, Could you please more brief ?
Sir do we have standard minimum & maximum lenght on the suction pipe (tank to pump)? and standard distancing on the fittings and accessories? Thank you for this wonderful video.
Sir, as per NFPA 20 suction pipe shall be sized so that when the pump is operating at its maximum flow rate, which is 150% of its rated capacity. Is there any pertuculer condition to apply this or we shall apply to all fire pump rooms?
Suction pipe size for the pumps will be selected based on a table available in nfpa 20. So no need to worry about the 150% rated head capacity… please check my video on “fire pump room pipe sizing”
If I have a 6 floor building, it has a parking floor under ground (ordinary hazard grade 1) and the other floors are apartments (light hazard). Do I have to select the pump based on the requirements of the parking floor or the requirements of the last floor of apartments?
Nice question. See u have to perform hydraulic calculations considering two scenarios 1) based on remotest location 2) based on highest hazard available even if the highest hazard is near to the pump room also Based on remotest location u will get may be highest pressure head (psi) and from highest hazard scenario u will get the highest flow (gpm). Based on those two scenarios u need to consider the max flow and pressure required. Based on that u need to select fire pump capacity. Hope it’s clear for u. If u have any other concern let me know. Any how all these will be explained in this nfpa 20 module asap.
@@irfancfps yes it was clear. I am a mechanical engineering student from, I am doing my final project on the design of thermofluidic systems and your videos have been very useful
@@isaacjose016 thank you so much. You were doing project on thermofluidic so how this firefighting videos are useful for you? Could u let me know so that it will give me clear idea. Thanks
Flow is 750 GPM, Can we take discharge side 8" dia. pipe because pump house locate in the center of 4 building and due to 4 branching flow is being reduced and total nos of sprinkler are 200.
Very nice explanation, There should be a strainer on suction line Additionally What are the roles of sensing lines which are going to controller, These lines ll be water filled ?, Could you please more brief ?
Thank u. Strainer is not a mandatory requirement per nfpa 20 if the source is from portable water supply…sensing lines filled with water..
@@irfancfps Thank you, Could you please brief about sensing lines.
Sir do we have standard minimum & maximum lenght on the suction pipe (tank to pump)? and standard distancing on the fittings and accessories? Thank you for this wonderful video.
Thanks. Please contact me through email irfanmechengr@gmail.com I will share u the details
thank you mr irfan but i have a question, whats important controller?
Means?
Sir, as per NFPA 20 suction pipe shall be sized so that when the pump is operating at its maximum flow rate, which is 150% of its rated capacity. Is there any pertuculer condition to apply this or we shall apply to all fire pump rooms?
Suction pipe size for the pumps will be selected based on a table available in nfpa 20. So no need to worry about the 150% rated head capacity… please check my video on “fire pump room pipe sizing”
If I have a 6 floor building, it has a parking floor under ground (ordinary hazard grade 1) and the other floors are apartments (light hazard). Do I have to select the pump based on the requirements of the parking floor or the requirements of the last floor of apartments?
Nice question. See u have to perform hydraulic calculations considering two scenarios 1) based on remotest location 2) based on highest hazard available even if the highest hazard is near to the pump room also
Based on remotest location u will get may be highest pressure head (psi) and from highest hazard scenario u will get the highest flow (gpm). Based on those two scenarios u need to consider the max flow and pressure required. Based on that u need to select fire pump capacity. Hope it’s clear for u. If u have any other concern let me know. Any how all these will be explained in this nfpa 20 module asap.
@@irfancfps thanks 🙏🏼
@@isaacjose016 is it clear now??
@@irfancfps yes it was clear. I am a mechanical engineering student from, I am doing my final project on the design of thermofluidic systems and your videos have been very useful
@@isaacjose016 thank you so much.
You were doing project on thermofluidic so how this firefighting videos are useful for you? Could u let me know so that it will give me clear idea. Thanks
Flow is 750 GPM, Can we take discharge side 8" dia. pipe because pump house locate in the center of 4 building and due to 4 branching flow is being reduced and total nos of sprinkler are 200.
Iam not clear about u r query. If possible share me the drawing in pdf so that I can guide u..
Sir how to calculate the pump rating according to plants and buildings
Please check other video available in playlist. Topic fire pump sizing . Applicable for plants and buildings
Sir Please upload video 10-15min short videos are missing some important points
@@sandeepm8734 let me know which points are missing. Thanks
Sir missing means in short videos u are explaining fast . So requesting you to do 10-15 min so i can also learn easily sir. I can learn more points .
@@sandeepm8734 ok. I will try my best
Sir im planning to prepare for CFPS exam..Are you trainer.?
Any possibilities for coaching ?
Please let me know sir..
Great. But unfortunately i dont take training / coaching. you can check through linkedin u will find few good trainers..
How to size a jockey pump.. can u plz share a example..
Jockey pump is only to used as a pressure maintenance pump. As a thumbrule jockey pump capacity can be be considered 1% of main pump capacity..
@@irfancfps Do we have any codes and standards for this..
Please check NFPA 20@@ranjanranju5006
I need jockey pump calculation
Will make one video soon