Quality:

Relay valve - valve to remotely operate pneumatic brakes. Article “Relay valve” in English Wikipedia has 12.8 points for quality (as of July 1, 2025).
The article contains 2 references and 5 sections.
Since the creation of article “Relay valve”, its content was written by 17 registered users of English Wikipedia and edited by 17 registered Wikipedia users in all languages.
The article is cited 2 times in English Wikipedia and cited 2 times in all languages.
The highest Authors Interest rank from 2001:
- Local (English): #60795 in September 2014
- Global: #208634 in September 2014
The highest popularity rank from 2008:
- Local (English): #481590 in June 2015
- Global: #802472 in June 2015
There is 1 language version for this article in the WikiRank database (of the considered 55 Wikipedia language editions).
The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).