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Keystone GR Series Butterfly Valves

The Emerson Keystone GR Series are heavy duty resilient seated butterfly valves available in lugged or wafer body style for any service where drop-tight shut-off and maximum flow area is required.

  • Bubble-tight shut-off
  • Bi-directional
  • Wafer patterned, lugged or short face double flanged
  • Repairable design enables easy field replacement of seat and disc/stem
  • The seat and disc are the only wetted parts
  • ISO standard face to face dimensions
  • Size range 50mm - 900mm

Material: Super Duplex, 316 Stainless Steel, Aluminum Bronze, Buna-N, Ductile Iron, Duplex, Epdm Rubber, Nylon

Operating Temperature: -28°C to +160°C (-18.4°F to +320°F)

Pressure Rating: 16 bar

Pressure Class: PN, ASME

Process Connection Type: PN10/PN16/ANSI 150

Valve Size Standard: NPS, DN

Media: Water Glycol, Water, Liquid, Air

The Keystone GR Series butterfly valves are suitable for water, air and dry bulk conveying applications. The valve seats are available in EPDM/NBR & PTFE. These valves are for any service where a bubble-tight shut-off with maximum flow area is required. The Keystone GR Series is suitable for pneumatic or electric direct mount with E series Keystone actuators.


Country of Origin: China

Commodity Code: 84818085

Emerson Keystone GR Series ISO Datasheet
Emerson Keystone GR Series NON ISO Datasheet
Emerson Keystone GR Series ISO/NON ISO Addendum
Emerson Keystone GR Series IOM

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