worm gear float ball valve,flanged ends.made of cast steel. Design & ... PN10~PN160 or JIS 10K ~ JIS 40K.Nominal diameters: 1/2~ 24 or DN15~DN600.Major materials: WCB, WC1, WC6, WC9 ... (316), CF3(304L), CF3M(316L), etc.Driving styles: manual/ worm gear/electric/pneumatic,etc.Fire-resistant & anti-static design. worm ...