301 series – BUTTERFLY VALVES
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301 series – BUTTERFLY VALVES

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Description

Size range1.1/2” ÷ 40” (DN40 ÷ DN1000)
TypeWafer, Lug, Double flanged
Face to face dimensionEN 558 series 20
Top flangeISO 5211
Max working pressure20 bar – bidirectional
Flange drillingPN6, PN10, PN16 / ANSI class 150
Operating temperature-20 °C ÷ +160 °C (-4 °F ÷ +320 °F)
Standard materialsBody: Ductile Iron, Carbon Steel, Stainless Steel, Al/Bronze, F51
Disc: Ductile Iron, Carbon Steel, Stainless Steel, Al/Bronze
Stem: AISI 316, AISI 420, AISI 630, MONEL K
Seat: NBR, EPDM, EPDM HT, VITON, more
(all seats have inside a metal ring reinforcement)
Leakage classRate “A” – No leakage – according to EN 12266-1
ApplicationsLiquids or gases in industrial environments, plants,
water treatment, vacuum, other applications with compatible
materials to working conditions
Certifications2014/68/UE PED, 2014/34/UE ATEX,
SIL IEC 61508 – IEC 61511 GOST-R,
CU TR 10 – CU TR 32, TA-Luft

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