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BUTTERFLY VALVE Dimensions / pressure: Material body: Material disc: Material seat: Material stem: Counter flange: Material body: Material disc: Material seat: Material stem: 3 lags Epoxy / Epoxy / Pur 160 u, Handle, gear box or actuator (pneumatic, electric or hydraulic) Rilsan covered ductile iron, Alu-bronze, Duplex, Hastelloy, PTFE coated Natural rubber, Hypalon, Silicone • High quality industrial butterfly valve, EN 10204 3.1 certificate, CE/PED and ATEX approvals are avail- • Unique wave shaped seat reduces torque and prolongs service life. • Seat vulcanised to a replaceable back-up ring com- pared to a traditional replaceable seat has several advantages: Exact tolerances produce 100 % tight- ness and prolong service life - Suitable for vacuum and high flow velocity - Mounting between flanges without seat displacement. • Extensive choice of materials provides for many applications. Strong handle in steel or stainless steel. • Two-piece stem and streamlined disc result in high Kv-value and less turbulence. • ISO 5211 mounting flanges and stem enable direct mounting of actuators without the use of Square transition between stem and disc ensures peak reliability. • 3-piece plain bearing reduces friction and prolongs service life. Self-centering solution during mounting covers many standards (see general). DS-2230-UK-271011-7 We reserve the right for changes.

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•Optional choise - ON REQUEST VALVE DATA Kv = The amount of m3 per hour of 20° C water at 1 bar pressure drop. Cv = The number of US gallons per minute of 60° F water at 1 psi pressure drop. Cv = 1,167 Kv. From DN350 to DN600 valves, if the normal pressure is 16 bar, Kv the torque value is the same as the values for the wafer and lug models. *) PTFE Liner The charted values are for water, seawater, lubricating types of hydrocarbons. Temperatures from 0° C to 80° C. Valves are activated at least once a month. For other liquid applications and lubricating gas- ses, multiply values by 1,1. For...

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2230 2Pages

Catalog excerpts

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2230
2Pages