INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Fire hose cabinet only

Fire hose cabinet only

(OP)
Hi folks,

Just want to confirm if i need a jockey pump when i only have to supply fire hose cabinets for a 4-storey office building. do i need jockey pump when i have automatic-wet or automatic-dry standpipes design? and what if i design a Semi-automatic dry type of standpipe? do i really need a jockey pump?

thanks,

RE: Fire hose cabinet only

You only need a jockey pump if you have a fire pump.

I suspect you are asking if the standpipes must be manual or automatic for a 4 story and the answer is 'it depends'.

RE: Fire hose cabinet only

(OP)
Hi sir!

The system have a fire pump and the design of the standpipe is a dry type standpipe system (there is no water inside the pipe) it also have its own fire reserve. do i need to add jockey pump? or where do i need to add jockey pump if only standpipes will be the protection of the building? thanks for your help sir.

RE: Fire hose cabinet only

Will the fire pump start automatically via drop in pressure OR started manually by say the fire department or fire brigade? If automatic starting a jockey pump is required to prevent the fire pump from starting because of say a small leak. An automatic starting fire pump should be connected electronically to the fire department. The jockey pump will prevent false alarms to the FD.

RE: Fire hose cabinet only

If the system has a fire pump then you need a jockey pump.

If a fire pump is already there it should have a jockey pump. Refer to NFPA 20 for how to provide a jockey pump.

RE: Fire hose cabinet only

(OP)
@LCREP

the fire pump is intended to run if the fdas detects a fire. can this design work? the pipes will be totally empty no air or water inside. i think the designer design the system that way thats why it has no jockey pump.

RE: Fire hose cabinet only

What is a "fdas"

RE: Fire hose cabinet only

ME. Engr, you have to think about the purpose of a jockey pump and LCREP has alluded to it. Also if you have a widely range of pressure changes at the supply side, a jockey pump will control false alarms to the automatic fire protection system.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close