Parag_bane
Manager- Safety & Environment
Kaifee Khan
Hse&fire Engineer
[email protected]
Security Officer
+2 Others

Cite.Co is a repository of information and resources created by industry seniors and experts sharing their real world insights. Join Network
Pl. describe why the hydrant pressure is 7 kg/cm2 -Subodh
From India, Delhi
Normally, at the battery limit of the plant (which includes, structures, columns, & Vessels which are nearly 50 m high or so as per the design need), the pressure of the Fire hydrant system will be 5 Kg/cm2. In order to maintain that considering the pressure losses and line losses, it is normal to maintain the Fire hydrant pressure at 7 Kg/cm2. Any thing more than that is energy waste. Anything less than that will create problems during fire crisis. Hope this clarifies. If you need detailed clarification, pls consult a piping and HSE expert in this.
From India, Mumbai
it is as per the standards and depend up on the type of occupancy it may vary from 7 kg/cm2 to 12 kg/cm2 depending upon the type of occupancy
From India, Mumbai
With reference to the above I hv few questions mentioned below . Pressure standard decided by NFPA body or any other . 7kg/cm² to 12/cm² means how much litter water will come per min.
From India, Delhi
Hydrant mains should be tested with the pump delivering at its maximum pressure with all the hydrants outlet closed and thereafter, with at least three adjacent hydrants opened to see that the hydrant yield the minimum output of 1125 litres per minute at a minimum pressure of 5.25 kgf/cm2
as per IS13039:1991 (External hydrant systems provision and maintenance code of practice)
Regards,
PARAG BANE
Safety & Environment (Birla Carbon)


Hi Parag sir, Thank you very much for ur quick response now out,of curosity how the calculation done, if 7kg/cm2 then how much litter would come out per min, way to calculate it plz
From India, Delhi
Dear Ashok, for calculation :- it depend on no. of hydrant points, pump capacity, head, length of line etc.

Respected sir,
I just want to know the lpm if it's between 7 to 12kg/cm2 n the basic way to calculate it, sir plz help me to get this answer it's really required for me to know please.
Thanks n regards
Ashok K

From India, Delhi
This discussion thread is closed. If you want to continue this discussion or have a follow up question, please post it on the network.
Add the url of this thread if you want to cite this discussion.






About Us Advertise Contact Us
Privacy Policy Disclaimer Terms Of Service



All rights reserved @ 2020 Cite.Co™