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Double Flanged Type

Double Flanged Type
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Double Flanged Type

Product catalog summary
Overview: The document provides technical specifications for two types of rubber-lined concentric butterfly valves: the EVFS (short pattern) and the EVFL (long pattern). Both are designed with bonded vulcanised rubber linings and feature a double flanged body type.
Specifications:
  • EVFS (Short Pattern):
    • End Connection: ISO, PN 6 / PN 10 / PN 16; JIS, 5K / 10K / 16K
    • Design Pressure: 16 bar / 232 psi
    • Nominal Diameter: DN 50 / NPS 2 up to DN 2000 / NPS 80
    • Building Length: Double flanged short, according to EN 558 / ISO 5752 Serie 13
    • Body Material: Nodular cast iron, steel cast, stainless steel cast, aluminium bronze/bronze
    • Sealing: Rubber seat
    • Operation: Lever, worm gear, pneumatic actuators, electric actuators, hydraulic actuators
  • EVFL (Long Pattern):
    • End Connection: ISO, PN 6 / PN 10 / PN 16
    • Design Pressure: 16 bar / 232 psi
    • Nominal Diameter: DN 50 / NPS 2 up to DN 1500 / NPS 60
    • Building Length: Double flanged long, according to EN 558 / ISO 5752 Serie 14
    • Body Material: Grey cast iron, nodular cast iron
    • Sealing: Rubber seat
    • Operation: Lever, worm gear, pneumatic actuators, electric actuators, hydraulic actuators
Key Features: Both valve types are designed for industrial applications, offering a range of operation methods and materials to suit different environments and pressures. The EVFS supports a larger nominal diameter range compared to the EVFL.
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Catalog excerpts

Double Flanged Type-1

Double Flanged Type - Wouter Witzel: Wve technology - Industrial butter... https://www.wouterwitzel.nl/segment/double-flanged-type-rubberlined-bu... RubberLined EVFS Rubberlined EVFS Short pattern Construction Concentric butterfly valve with bonded vulcanised rubber Linings Body type Double flanged type Building length Double flanged short, acc. EN 558 / ISO 5752 Serie 13 Body material Nodulair cast iron Steel cast Stainless steel cast Aluminiumbronze / bronze Rubber seat Operation Lever Worm gear Pneumatic actuators Electric actuators Hydraulic actuators

 Open the catalog to page 1
Double Flanged Type-2

Double Flanged Type - Wouter Witzel: Wve technology - Industrial butter... https://www.wouterwitzel.nl/segment/double-flanged-type-rubberlined-bu... RubberLined EVFL Rubberlined EVFL Long pattern Construction Concentric butterfly valve with bonded vulcanised rubber Linings Body type Double flanged type Building length Double flanged long, acc. EN 558 / ISO 5752 Serie 14 Body material Grey cast iron Nodulair cast iron Sealing Rubber seat Operation Lever Worm gear Pneumatic actuators Electric actuators Hydraulic actuators

 Open the catalog to page 2

All Wouter Witzel EuroValve B.V. catalogs and technical brochures

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