Jamesbury® EasyFlow J4 series 3-piece floating ball valve

Full and reduced bore, threaded, socket-weld, or butt-weld

Jamesbury J4 series 3-piece floating ball valves are an economical option to our fully featured products. J4 series provides long, reliable life and a rugged three-piece body construction. The standard valve is available with NPT or BSP threaded ends, socket weld or Schedule 40 butt weld ends in the most common materials of construction. The standard valve includes performance enhancement features such as live-loaded stem seals and direct mount actuator capability. Cavity fill option is available for industry applications requiring minimum volume of residual media trapped between the seats.


  • Long cycle life
  • Easy to maintain
  • Single source responsibility with reliable Metso actuators, switches, and controllers
  • Compliance with industry standards



  • Unique low torque seat design provides bubble-tight shut-off through pressure and temperature cycles
  • ISO 5211 mounting pad for direct mounting of handle, gear operator, manual override, or actuator
  • Internal entry blow-out proof stem design
  • Live-loaded spring stem seal provides long cycle life and low emissions with minimal maintenance
  • An extremely tight fit drive between the stem and ball ensures accurate and repeatable shut-off and control
  • Anti-static grounding between ball and stem as well as stem and body
  • Lockable handle available
  • Cavity fill option minimizes media trapped in the cavity between the seats when the valve is open
  • Every valve is 100% factory tested before it is packed and shipped



  • Chemical and petrochemicals
  • Pulp & paper
  • Food and beverage
  • Water & wastewater
  • Pharmaceutical
  • HVAC
  • Mining



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