Previous in Forum: How to Design a Silo   Next in Forum: Deaerator Water
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
Rate Comments: Nested
josej
Power-User

Join Date: Mar 2008
Location: Mumbai
Posts: 250
Good Answers: 2

Rotary Valves and Push Down to Close (PDTO)

05/04/2009 7:54 AM

Dear Frnds,

Can some 1 plz explain ,Hows does the concept of Push Down to Close (Air Fail Close) Works For Rotary Valves

Regards

Jose
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Kwetz
Guru
Spain - Member - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Oct 2007
Location: Madrid, Spain
Posts: 716
Good Answers: 25
#1

Re: Rotary Valves and Push Down to Close (PDTO)

05/04/2009 11:50 PM

Rotary AOV's, air operated valves (!/4 turn valves such as butterfly, ball, plug, etc,) use to be operated by piston type actuators rather than diaphragm ones, the the piston and spring must be arranged such that when air supply fails, the spring close the valve.

Kind regards

__________________
 It's stupid to discuss about AI: We´ve reached by the "B" way. We' ve producing men as clever as machines.
Register to Reply
Register to Reply
Have a Different Question?

Previous in Forum: How to Design a Silo   Next in Forum: Deaerator Water
You might be interested in: Hydraulic Valves, Gas Valves, Industrial Valves

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (74 right now)
Show Members
Advertisement