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  • Users: ocv
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  1. ocv

    Floating ball valves leaking at low pressure

    Again thanks, I agree Trunnion ball valves and triple off-set butterfly valves would solve this problum. They do not need to be piggable.The cost on both in 316 stainless are considerably higher that the original floating design. I must now convience the user that the floating "design" should...
  2. ocv

    Floating ball valves leaking at low pressure

    Thank you for the replies. I will suggest replacing them with Gate or Plug valves for this on-off service.
  3. ocv

    Floating ball valves leaking at low pressure

    I'm trouble shooting an instesting problum. Numerious 3" 300# ball valves (floating design) hold fine at high pressure (600 psi) but leak at low pressure (aprox 15psi head pressure) when pumps are off.Water service on pump discharge. Is this a common trait for floating ball valves?

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