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For details of each Manufacturer's range of Butterfly Valves (and downloadable Data sheets) select from the list below

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Associated Valve

This Month's FEATURED PRODUCTS
from Associated Valve

Valve Type: Butterfly Valves

Amri's Isoria Butterfly Valve


BUTTERFLY VALVES use what has been termed "a rotating disc" to reduce or shut off flow in a pipe. The disc or "wafer" pivots on a central axle connected to a handle or other control device outside the valve.

When the thin disc is positioned parallel to the direction of flow, fluids move freely around it. As the disc is rotated it takes up more and more of the diameter, choking off the flow. At 90 degrees, the disc seals against seats in the valve body to stop flow altogether.

This design is considered well suited to applications in which frequent throttling of flow is required. Butterfly valves are commonly specified in situations where high volumes of gases or liquids are moving under relatively low pressure.

Amri Mammouth Butterfly Valve

Featured Butterfly Valve #1

Amri: Mammouth Butterfly Valve

Centred disc butterfly valve with AMRING elastomer liner

  • NPS 44" to 120"
  • Sizes 1100 to 3000 mm
  • Allowable pressure PS up to 375 psig (25 bar)
  • Design according to EN 593 and ISO 10631

    Working conditions

  • Ambient temperature from 0-65°C (32-150°F)
  • The maximum liner temperature depends on the media and the elastomer used.
  • Allowable pressure (PS): up to 375 psig (25 bar) at ambient temperature.

    Applications

  • Water treatment and supply, sea water desalination (multiflash,reverse osmosis processes)
  • Cooling water systems and fire water systems
  • Shipbuilding, iron and steel industry and electric power stations (hydraulic, thermal or nuclear)
  • Flow shut-off or regulation functions in all sectors of industry

    • Jenkins Butterfly Valve

    Featured Butterfly Valve #2

    Jenkins Butterfly Valves

    Jenkins provides resilient seated butterfly valves in lug and wafer body styles, constructed of cast or ductile iron, stainless steel or bronze to meet unique operational requirements.

    Rated to 150, 200 and 285 psi shut-offe

    Sizes 2" - 36"z

    Buna-N and EPT Seat

    Special Materials: Stainless Steel, Monel, Neoprene, Hypalon®, Viton®, Bron