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ITT Engineered Valves 963 Manual Bonnet
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ITT Engineered Valves 963 Manual Bonnet


The 963 manual bonnet from ITT Engineered Valves is a compact, lightweight, and rugged valve designed to withstand typical washdown media in demanding bioprocessing systems. This fully featured valve is capable of meeting the most stringent requirements in critical applications, providing reliable performance and long-lasting durability.

Constructed with high-quality materials, including a glass-reinforced polyarylsulfane (PAS) bonnet and handwheel that comply with FDA regulations (21CFR 177.1660), the 963 manual bonnet offers exceptional corrosion resistance against alcohol, chloride, and most caustic washdowns. Its robust design ensures reliable operation in challenging environments.


  • Autoclavable for sterile processing
  • Rising stem for clear visual indication of valve position
  • Adjustable travel stop for precise flow control
  • Protective PPS cap to shield valve components
  • Brass stem bushing for smooth operation and reduced wear
  • Visual position indicator for quick and easy status checks
  • Permanent lubrication for maintenance-free operation
  • O-ring seals to prevent leaks and ensure tight shutoff
  • Stainless steel compressor for increased durability
  • Enclosed fasteners (½"–3" sizes) for a cleaner, more hygienic design
  • Optional sealed bonnets (963S) for secondary containment and leak detection
  • Optional lockable sizes for added security and safety


  • Bioprocessing and pharmaceutical manufacturing
  • Food and beverage processing
  • Chemical processing plants
  • Washdown environments requiring corrosion resistance
  • Sterile processing and clean-in-place (CIP) systems


  • Size range: ½"-4" (DN15-DN100)
  • Maximum service pressure: 150 psig (10.34 bar)
  • Maximum service temperature: 300°F (149°C)
  • External temperature limitations: 300°F (149°C)


Capable of withstanding typical washdown media, the 963 manual bonnet is a fully featured, compact, lightweight, yet rugged design. The 963 is packed with features that fulfill the most demanding requirements of today’s critical bioprocessing systems.


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