Double offset butterfly valves 401N series
Size range
3” ÷ 56” (DN80 ÷ DN1400)
Type
Wafer, Lug, Double flanged on request
Design
ASME B16.34, EN 12516-2, EN 593
Face to face
API 609, EN 558
Operating temperature
-40°C + 220°C (-40 °F ÷ +428 °F)
Pressure ratings
ASME class 150 – bidirectional
Flange drilling
ASME B16.5, ASME B16.47 series A, EN1092-1
Testing
API 598, EN 12266-1
Leakage class
Rate “A” – No leakage – according to EN 12266-1
Standard materials
Body: Ductile Iron, Carbon Steel, Stainles Steel
Disc: Ductile Iron, Carbon Steel, Stainles Steel
Stem: AISI 304, AISI 316, AISI 630
Seat: PTFE + Carbographite
INCONEL 625 LCF on request for metal to metal seated
Applications
Chemical and Pharmaceutical industries, sistems for solvent recovery,
other applications with compatible materials to working conditions
Certifications
97/23/CE PED, 94/9/CE ATEX, Fire Safe API 607, ISO 10497, API 6FA (on request)
SIL – IEC 61508, IEC 61511, GOST-R, CU TR 10 – CU TR 32
Introduction: Double Eccentricity Butterfly Valve Series 401N
This is a new range of butterfly valves of the double eccentricity type with “bubble tight” seal, designed for heavy duty service, especially as regards to shipbuilding and petrochemical sectors.
Above all it is ideal for shut-off and/or flow control of aggressive fluids or gases.
Awide variety ofmaterials can be used tomake the valve; those falling, in the standard range are.
- Ductile Iron (only fromND350 and bigger size)
- CarboonSteel
- StainlessSteel
- AluminiumBronze (only on request)
Such valves are manufactured according to the most up-to date design criteria, thereby offering maximum guarantee of correct operation and minimum maintenance.
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Client Success Team (CRM),
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