CR4 - The Engineer's Place for News and Discussion ®


Previous in Forum: Help with a Krohne UFC 6300   Next in Forum: Interface Level Measurement
Close
Close
Close
4 comments
Commentator

Join Date: May 2011
Posts: 91

Retainer for Soft Seat Wafer Type Butterfly Valve

07/08/2017 11:33 AM

Hello Everyone

Do Retainer is required for Soft Seat (PTFE. etc) Wafer type butterfly valve.

My Wafer type Butterfly Valve :

Temperature max is 90 deg and normal is 60 deg

Class VI leakage.

or for Higher temperature metal to metal seat Retainer required.

kindly clear my dought.

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 18621
Good Answers: 1086
#1

Re: Retainer for Soft seat wafer type Butterfly Vavle

07/08/2017 11:47 AM
__________________
Life is like riding a bicycle. To keep your balance you must keep moving. A.E.
Register to Reply
Guru

Join Date: Aug 2007
Location: Earth - I think.
Posts: 2013
Good Answers: 153
#2

Re: Retainer for Soft Seat Wafer Type Butterfly Valve

07/09/2017 1:26 PM

Degrees F or C? Units make a difference.

__________________
TANSTAAFL (If you don't know what that means, Google it - yourself)
Register to Reply
3
Power-User

Join Date: Jul 2016
Posts: 350
Good Answers: 17
#3

Re: Retainer for Soft Seat Wafer Type Butterfly Valve

07/09/2017 2:16 PM

The application and modes of operation of the particular valve you are looking at will dictate whether a retainer is required, and that will be answered by the valve designer.

For instance, if you need to have full pressure shutoff from either flow direction of the valve, the retainer will probably prevent the pressure from blowing out the seat, assuming the shutoff design is for one direction flow.

So you need to select a valve, then see if it will meet all of your operating conditions, including maintenance, cleaning and plant shutdown.

Register to Reply Good Answer (Score 3)
Guru

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 12221
Good Answers: 143
#4

Re: Retainer for Soft Seat Wafer Type Butterfly Valve

07/10/2017 2:14 PM

PTFE is fine for any application where you can utilize wafer type valve.

Go for it.

__________________
If it ain't broke, don't fix it. Just build a better one.
Register to Reply
Register to Reply 4 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Copy to Clipboard

Users who posted comments:

James Stewart (1); Kilowatt0 (1); rwilliams (1); SolarEagle (1)

Previous in Forum: Help with a Krohne UFC 6300   Next in Forum: Interface Level Measurement

Advertisement