Sinclair Collins
K Series Stainless Steel Process Control Valves

Key Features

  • Actuators in sizes 37, 64 and 135 provide for a wide range of operating requirements. 
  • Multiple-spring design reduces valve height. 
  • Field reversible from "air-to-open" to "air-to-close" without disassembling the valve body. 
  • Nylon-reinforced, molded EPDM rolling style diaphragm provides ease of maintenance and uniform thrust throughout the valve stroke. 
  • Dual stem guides with integral bearings for maximum alignment and longer life. 
  • Nemur mounting rail for accessory mounting. 
  • Yoke is made of cast bronze for rugged construction and long service life. Stainless steel valves use the same quality yoke with particle/silicone resin coating for superior wash down service and is FDA approved for incidental food contact.
  • Extended threads on stem allow for easy adjustment to accommodate a wide range of inlet pressures. 
  • Engineered and manufactured by Parker Hannifin, the combination of stainless steel filled PTFE seals and carbon filled PTFE seals provide optimum sealing, low friction and long life for a wide variety of temperatures and services. Other options are available. 
  • Bronze valve with union nut retention of the bonnet allows for servicing without removal from the installation. 
  • Stainless steel valve with bolted fl ange construction allows for easy servicing without removal from the installation. 
  • Plugs are hardened stainless steel for maximum protection against erosive and corrosive services with Class IV shutoff. For Class VI shutoff, Sinclair Collins exclusive Duraseat™ combines the sealing qualities of PTFE with the toughness of stainless steel.
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  • 300# Class stainless steel body per ANSI B16.34 
  • Body sizes 1/2", 1", 1½", 2" 
  • -40°F to 450°F (-40°C to 232°C) temperature range. For extended ranges, consult factory. 
  • Actuator is fi eld reversible, air to open, air to close • Rolling style diaphragm provides uniform thrust 
  • Three actuator sizes: 37, 64, 135. Maximum 35 PSI on 37 and 64 sizes; maximum 25 PSI on 135 size. 
  • Stem diameter 7/16" 
  • Stem travel (stroke) 0.75" all sizes 
  • Multi-spring, low-profi le actuators offer a 12 PSI control band. Other options available. 
  • 100% factory tested 
  • Hard seat meets Class IV leakage standards; Duraseat™ meets Class VI standards

Catalog Catalog
2.5 MB