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actuated valves and valve accessories

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Figure 310/312

  • Manufacturer: EMERSON
  • Valve Type: Butterfly Valves - Rubber Lined / High Performance / Triple Offset
  • Sub-Type: Keystone Butterfly Valves
  • Uninterrupted gasket surfaces help eliminate problems associated with seat retaining screws in the gasket surface and allows use of standard spiral wound gaskets.
  • Unique interference seat design with energized elastomer O-ring allows bi-directional ANSI Class VI shut-off at lower pressures.
  • Valve stem designed to API 609 standards is blow-out resistant.
  • Valve stem designed to API 609 standards is blow-out resistant.
  • Seat retaining ring is housed within the flange gasket ID to eliminate potential emission path.
  • Face-to-face conforms to MSS SP-68 and can be configured to ISO 5752 short.
  • Adjustable packing utilizes unique rocker-shaped gland bridge that compensates for uneven adjustment of gland nuts.
  • Extended neck allows for two inches of clearance for insulation.


High performance applications such as steam, chill water, water, utility lines, gasoline, natural gas, air, oil, jet fuels and process lines. Contact your sales representative for appropriate materials for specific services. Industry compliance ASME B16.34 API 609 MSS-SP68 CRN Registration PED Compliant in some configurations


Product Tags

Butterfly Valve Emerson Keystone Butterfly Valve

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