Page 26: of Maritime Reporter Magazine (August 1980)

Norris Metal-lined ANSI Rated Valve... "V. .S> ' 2fj -

Positive shutoff & long life in destructive

For handling hydrocarbons, corrosive media, and other difficult applications, specify Norris M285 (*) positive-shutoff butterfly valves They meet or exceed

ANSI B16 5 pressure and temperature ratings for Class 150 flanges.

Disc O-ring seals against field-replaceable metal liner. Flowstream never touches the valve body, no costly high-alloy body needed

Materials available: Metal discsft liners: Inconel

Titanium Monel. Stainless. Aluminum •

Bronze • Disc O-ring seals: Kalrez. ^^

Viton. Hypalon. Nordel. ECO. Buna N § Xlwd) • Bodies: Heat treated ductile iron or cast steel.

Bi-directional flow with no loss of flow effi- ciency. Upstream or downstream, flow coefficients for

Norris valves are the same. They are consistently higher than Cv's for conventional "high performance" valves with offset discs. • 285 psi wp with reserve strength to handle sudden differential pressure surges • 3 -36 single-flange lug and wafer styles.

NORRIS BUTTERFLY VALVES FOR DETAILS CALL GEORGE LITTLE 1-800-331-4468. IN OKLAHOMA CALL 918/584-4241

CORPORATION NORRIS DIVISION P.O. Box 1739. Tulsa. Oklahoma 74101 'Pat Applied For Trademarks. E. I Du Pont de Nemours & Company Inc 28 Maritime Reporter/Engineering News