Labyrinth Type Trim for High Differential Pressures, patented in 1993 -Combined start-up and full load feed water control valve

This version of the labyrinth type trim combines, in a single trim, the capacity to handle very high DPs with low flows and to handle high flows and low DPs. Making it possible to substitute, with a single valve, those applications where it is usually necessary to use two or more valves in parallel.

Design:
BR 310 Straight through (also available in angle form)
Housing material:
Forged steel
Pipe connection:
Weld ends
Valve plug type:
Multi-stage throttle system consisting of perforated cage and labyrinth plug
Valve seat seal:
Metallic
Spindle seal:
Graphite gland packing
Driver type:
Electric actuator with in lanter integr. Drive sleeve
  • Balanced
  • Leakage rate A
  • Inner parts inserted
  • Reduction of extreme high DP‘s in combination with very low dp´s during full load operation
  • Replaces two valves in one
  • No add. boiler filling valve needed
  • Equal percentage characteristic follows boiler curve
  • 0-50% opening  25% mass flow up to 6 stages
  • 50-100% opening  75% mass flow single stage
Boiler Feedwater Control Valve
Boiler Feedwater Pump Recirculation Valve
Any liquid High Pressure Differential application

Get your energy flowing

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