HCBBS Forum (English)
HomeForumView Original
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request
English Translations » 【化工工程交流】 » Are the valves for fault open FO and fault closed FC suitabl

Are the valves for fault open FO and fault closed FC suitable for pneumatic operation? !

2017-09-02View Original

Thread Content

Is an electric one suitable? Is it true that power outages happen often? !
Reply #22017-09-02
Pneumatic control valves have the functions of opening in case of fault (FO) and closing in case of fault (FC). Do electric valves have such functions?
Reply #32017-09-02
Electric control valves offer three modes for selection: fault hold, valve open in case of fault, or valve closed in case of fault.
Reply #42017-09-02
Well, regulating valves have springs, right?
Reply #52017-09-02
I have never used or seen valve devices with electric fault-open FO and fault-close FC functions; I have seen quite a few valves driven by simple electric actuators. However, they are rarely used directly for regulating purposes~~~~~
Reply #62017-09-03
We use pneumatic ones here.

Related Threads in This Forum

← Previous

Next →

Translated at 2026-07-21 04:04:59

Original: https://bbs.hcbbs.com/thread-1839479-1-1.html

© 2026 HCBBS Forum. Content translated for international readers.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.

Quick Links