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Keystone Series V30/V32 High Performance Butterfly Valves
Series V30/V32 High Performance Butterfly Valves
Keystone Marine High Performance Butterfly valves offer effective, bi-directional sealing across a wide spectrum of service conditions
Keystone Series V30/V32 High Performance Butterfly Valves


End Connection
Wafer, Lugged
Tanker, Fueling, Crude and Product Transfer, Ballast Control
316 Stainless Steel, Ductile Iron, Cast Iron, Carbon Steel
Pressure Class
Seat/Seal Type
High performance
Shutoff Class
Zero Leakage
Valve Size
NPS 4 / DN 100, NPS 6 / DN 150, NPS 24 / DN 600, NPS 2-1/2 / DN 65, NPS 20 / DN 500
Valve Size Standard
Valve Type
Water, Vacuum, Liquid, Fuel Oil, Air
Adjustable packing


  • Factory testing of every valve at full rating ensures 150% tight shut-off.
  • Pure-seal valve is designed according to JIS standards.
  • Actuator mounting flange according to ISO 5211.
  • Excellent sealing and elasticity.
  • One-piece through shaft for maximum strength and design application of blow-out resistant.
  • Integrally cast disc position stop device achieving optimum performance and structure safety of valve.
  • Variations with NBR or FKM seats and other material combinations available on special request.
  • Fast and simple seat replacement.
  • Type approved by various major shipping class.
  • Suitable for use on end-of-line service.
  • Tangential, low stress disc pins.
  • Long life durability due to double offset operating principle minimizing seat wear.