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ITT EnviZion Actuated Stainless Steel Bonnet
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ITT EnviZion Actuated Stainless Steel Bonnet


The EnviZion Actuated Stainless Steel Bonnet represents the pinnacle of innovation in hygienic diaphragm valves. Designed for the biopharmaceutical industry, this valve series includes types ZA1, ZA2, ZA3, ZA1S (sealed), ZA2S (sealed), and ZA3S (sealed), available in sizes from 0.5 to 2 inches (DN15-50). With operating modes such as Fail Closed, Fail Open, and Double Acting, the EnviZion valve's stainless steel actuator and bonnet materials ensure durability and compliance with FDA standards.

For over 40 years, hygienic diaphragm valves have been integral to the biopharmaceutical industry's demanding process applications. The EnviZion valve redefines this technology, significantly improving cleanability, reliability, and maintenance efficiency. This groundbreaking design reduces the total cost of ownership, supporting increased productivity and operational reliability.


  • Autoclavable
  • Thermal compensation system
  • Visual position indication
  • Weep hole
  • Safety lock-pin
  • 360-degree air port rotation (0.5 inch size)
  • Corrosion resistant to common industry washdowns


  • Biopharmaceutical production
  • Clean-in-place (CIP) systems
  • Sterilize-in-place (SIP) systems
  • High-purity water systems
  • Chemical processing
  • Food and beverage industry


  • Tool-less maintenance
  • Fastener-free design
  • 90% reduction in maintenance time
  • Active sealing technology with no retorquing required
  • EHEDG-certified sealing system
  • Optimized production capacity with reduced downtime
  • Reliable seal integrity over varying operating conditions



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