Sensus 441-x57 and 461-x57 Large Pressure Gas Regulators Available Pipe Sizes for 441-x57: 2″, 3″ Flanged ANSI Available Pipe Sizes for 461-x57: 2″ NPT Screwed and Flanged Temperature Limits: Regulators may be used for flowing gas temperatures from -20ºF to 150ºF Read more Request a Quote This product is already in your quote request list. Browse the list