Victoria butterfly valve 480, 481, 487

The GEMÜ Victoria butterfly valves types 480, 481 and 487 are centric, soft-seated industrial valves for demanding applications in water, chemical and energy technology. With their robust elastomer seat seal, the high-grade metal construction and the available actuator variants (manual, pneumatic, electric) they offer a durable, reliably sealing and versatile solution for industrial piping systems. The range is available in wafer, lug and U-type designs and covers nominal sizes up to DN 600 – ideal for modular plants, skids, utility systems and the process industry.

Special features

• Centric, soft-seated design with elastomer seat
• Body variants: wafer, lug and U-type
• Nominal size range: DN 25-DN 600
• Temperature range depending on the sealing material
• Operating pressure ranges: 3 / 10 / 16 bar
• Connection standards: PN 10, PN 16, ASME Class 150
• Face-to-face length to ISO 5752/20, EN 558-1/20 and API 609 category A
• ISO 5211 interface for electric and pneumatic actuators
• Leakage rate A to EN 12266-1
• High material resistance through different seat materials

Advantages

• Three body variants: wafer, lug and U-type
• Nominal sizes DN 25 to DN 600
• Actuator variants GEMÜ 487 with hand lever or gearbox, 481 pneumatic, 488 electric
• Face-to-face length to ISO 5752/20, EN 558-1/20 and API 609 category A

Versions

• Nominal sizes: DN 25-DN 600
• Seals/seat materials: EPDM, NBR, further elastomers on request
• Versions:
  Wafer
  Lug
  U-type
• Actuator variants:
  Type 480: hand lever or gearbox
  Type 481: pneumatic actuator
  Type 487: electric on/off or control actuator
• Automation options:
  Pneumatic part-turn actuators
  Electric actuators (24 V / 230 V)
  Limit switch boxes, position indicators, solenoid valves
• Optional:
  Special coatings, special materials for seat and disc

Areas of application

• Gaseous and liquid media in industry
• Nominal sizes DN 25 to DN 600
• Face-to-face lengths to ISO 5752/20, EN 558-1/20 and API 609 category A
• Automated valves with pneumatic or electric actuator

Recommendation

In combination with AirTorque actuators and accessories – matched to the Victoria 480, 481, 487 butterfly valve.

Selection and installation

The body variant follows the installation situation: wafer between flanges, lug as an end-of-line valve with threaded lugs, U-type for dismantling on one side. The actuator number designates the operation – 487 manual, 481 pneumatic, 488 electric.