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Descaling systems that use an accumulator require an accumulator safety shut-off valve to prevent the inadvertent loss of the pneumatic charge into the system due to a low-level condition. Loss of the pneumatic charge typically results in costly unplanned downtime to recharge the system.

Hunt Valve’s ceramic seated poppet and plunger-style descale valves are well-suited for use as accumulator low-level safety shut-off valves. Both valve configurations offer the same reliability and long service life as they do on spray header control applications. The following actuation and control options are available for our ceramic seated poppet and plunger-style descale valves:

  • Valve actuation
    • Electromechanical for maintenance-free operation on our ceramic seated poppet valve
    • Pneumatic or hydraulic actuation on our plunger-style valves
  • Valve control: performed via a signal from an accumulator-level control probe (also available from Hunt Valve)
     

Hunt Valve’s accumulator low-level control valve designs are configured to fail closed in all models to prevent the release of the accumulator air charge into the descale system due to a low-level condition.