×
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!
  • Students Click Here

*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.

Students Click Here

Jobs

Difference between "normal water valve" and "Chilled water Valve".
4

Difference between "normal water valve" and "Chilled water Valve".

Difference between "normal water valve" and "Chilled water Valve".

(OP)
Hi,

Can anyone please tell the difference between normal water valves and chilled water valves? is there really any difference technically?

Also normal valves like gate, globe, butterfly, check, ball, etc ..do these valves are also available in chilled water valves?

Thanks and regards
Arnold

RE: Difference between "normal water valve" and "Chilled water Valve".

Never heard the term "Normal Water Valve." Many of the same valves can be used on chilled water, hot water, steam, oil, compressed gas, etc. Pressure and temperature limitations should be provided by the valve manufacturer.

RE: Difference between "normal water valve" and "Chilled water Valve".

It depends on the how the client/engineer/whoever defined the service. Typically a valve is just referred to by the system it's in. If it's a ball valve in a chilled water system, it's a chilled water valve. That same physical valve is likely installed in normal water service as well.

All valves have a temperature/pressure limit based on the materials/soft goods/design of the valve. For common chilled water systems (~35F) the valves may be identical to "normal" water service valves. Once you get into severely cold (cyrogenic) and/or high pressure applications, the valve designs will change.

RE: Difference between "normal water valve" and "Chilled water Valve".

Hi Arnold,

There is not a such thing as "Normal Water". It could be Potable (drinking) Water, Domestic (Hot) Water (usually the same as Potable but heated), Service Water, Cooling/Chilled or Heating Water (could be water or water/glycol mixture), Demineralized Water or Condensate Return (for steam boilers), Produced Water (from wells), Storm Water (rain run off), Fire Water (for fire protection system), Raw Water (from river or lake before it gets into water treatment plant), to name a few. You can call it with any name to identify service.

Thanks,
Kurt

RE: Difference between "normal water valve" and "Chilled water Valve".

Most water valves should be good for all duties from 0C to at least 100C.

There might be some different seals more compatible with low temperatures but that's about it.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Difference between "normal water valve" and "Chilled water Valve".

Hi there,

From pressure/temperature prospective all piping material, valves, pipe fittings for water service is similar because of water is water. There are some differences though when you dig deeper for particular services.
For example, for Potable Water service it is used 304 stainless steel material (piping, fittings, valves) for above ground lines. For materials used in this service you have to specify additional compliance to NFS/ANSI 61 standard (low Lead content) for potable water service, because high Lead content may cause Lead poisoning.

Thanks,
Kurt

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! Already a Member? Login


Resources

White Paper – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. Download Now

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