Butterfly valve (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Butterfly valve" in English language version.

refsWebsite

Global rank English rank

low place

low place

1powderprocess.net

low place

low place

low place

low place

1stoneleigh-eng.com

low place

low place

1patents.google.com

1,182^nd place

725^th place

bitorq.com

"Valve Types: Butterfly Valves and Ball Valves | Blog - La Fox, Illinois-BI-TORQ Valve Automation". www.bitorq.com. Retrieved 2018-08-28., broken link

cairindia.com

sshaik (2023-04-13). "Everything you need to know about Wafer and Lug Style Butterfly Valve | Cair Euromation". Cair Euromatic Automation. Retrieved 2023-05-12.

patents.google.com

"Butterfly valve". James E Hemphill, Fisher Governor Co. 1966-09-19. {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: others (link)

powderprocess.net

"Pneumatic Rotary Valves - Rotary Valves pneumatically actuated - PowderProcess.net". www.powderprocess.net. Retrieved 2019-08-23.

stoneleigh-eng.com

"Valve History". www.stoneleigh-eng.com. Retrieved 2018-03-04.