Hygienic-grade isolation and control for food, beverage, and pharmaceutical systems

The Keystone F250 Butterfly Valve offers robust flow control with a quarter-turn operation and a lockable handle. Designed for sanitary applications, it features a fully machined stainless steel body and multiple seal options to suit diverse fluid environments.

Key Features:

• Sizes Available: 1″, 1.5″, 2″, 2.5″, 3″, 4″, 6″
• End Connections: BSM, RJT, Wine Thread, Triclamp, DIN, BSP (male/female combinations)
• Handle: Lockable, multi-position notch plate
• Body Material: 316L Stainless Steel
• Max Pressure: 10 Bar @ 20°C
• Temperature Range: -5°C to 95°C (varies by seal type)

Seal Options & Colours

•  Silicon (White)
  • Temp Range: -30°C to 180°C
  • Excellent resistance to ozone, water, and weathering
  • Ideal for food and beverage applications
     
•  EPDM (Brown)
  • Temp Range: -40°C to 120°C
  • Suitable for steam, hot water, mild acids, and alkalis
  • Common in CIP systems and hygienic processing
     
•  Nitrile (Black)
  • Temp Range: Not specified
  • General-purpose sealing with moderate chemical resistance
  • Used in low-pressure, non-critical environments
     
•  Viton (Red)
  • Temp Range: -5°C to 210°C
  • High resistance to acids, solvents, and extreme temperatures
  • Preferred for pharmaceutical and chemical processing
     

Applications:

Ideal for hygienic processing in dairy, brewing, pharmaceutical, and beverage industries. Compatible with CIP systems and suited for both isolation and regulation control.