• Sizes:  10”, 12” and 14”
  • Directly interchanges with old spool type prefill valves.
  • Higher flow rates than other spool type valves.
  • Faster response than the old-style spool type prefill valves.
  • Less internal travel from full open to full close.
  • Standard NFPA-style cylinder for actuation that is standard on all three sizes.
  • Visual indication of prefill shifting.
  • Electrical indication of prefill open/close optional.
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