Hunt Valve

Mega-Flo C Plunger Valve

Brand: Hunt Valve

Hunt Valve’s new Mega-Flo C Descale Valves are the longest lasting plunger-style descale valves available.

This ultra-durable plunger-style descale valve saves customers 33% on the total cost of ownership over competitors’ poppet style valves. The savings is based on the initial purchase price and maintenance requirements over the first three years of service, then a 50% reduction in maintenance costs thereafter.

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Why Hollow Plunger Technology delivers better durability

Zero Leakage and extended durability:

  • Since the UHMW plunger seals create a zero leakage seal, internal component damage from water jetting is eliminated.
  • Since the UHMW plunger seals are only directly exposed to the high velocity water flow for 1-2 seconds per shift, wear is minimized.
  • Since the UHMW plunger seals are pushed away from the surface of the plunger when shifting the valve, wear is minimized resulting in longer service life and improved contamination tolerance.

  • State-of-the-art valve based on Hunt’s proven core plunger technology.
  • Advanced materials used in Hunt’s proven integral pressure breakdown design.
  • Forged housing designs are treated for corrosion and wear protection to extend the service life of the housing.
  • Stainless Steel Housing Liner can be replaced in the field.
  • Upgraded cylinder design for less corrosion, wear and friction due to the following:
    • Nitrocarburized piston rod and tie-rods.
    • Low friction urethane piston and rod seals.
    • 60 RC hard anodized cylinder bore.
  • Low-turbulence flow plunger design.
  • Plunger contained in the pressure vessel for safety.
  • Staggered flow slots provide gradual acceleration and deceleration of flow during plunger shifting to prevent water hammer.
  • Proximity switch or Transducer options for position feedback.
  • Isolated air actuator, kept away from the high-pressure fluid.
  • Anti-extrusion seals without grease requirements.
  • Seal is pushed away from the plunger by the fluid pressure during shifting to prolong life.
  • Sealing surface is NOT exposed to the water flow path when valve is open or closed.

Extend the life of your existing valve installation by replacing your old-style cartridge. The Mega-Flo C cartridge assembly is a drop-in fit to the existing Mega-Flo A or B installation for easy field upgrade capability. It offers the benefits of the Mega-Flo C enhancements without having to replace the entire valve system. The cartridge is a 40% cost savings versus purchasing a complete new valve.

Do you have cooling issues with your strip from continuous header pre-fill flow? An electromechanical actuator shifts the plunge from the pre-fill flow position to the full off position to reduce this problem. The new linear actuator design provides precision control.

Besides solving your cooling issues, this actuator:

  • Provides the necessary prefill to prevent water hammer and resulting header damage.
  • Eliminates the maintenance and reliability concerns of operating an external high-pressure solenoid-operated prefill control valve.
  • Relieves safety, maintenance and reliability issues of operating a low-pressure prefill system.
  • Offers flexibility to shut off the prefill flow when not required, thus providing increased flow and pressure available for descaling to the system or a significant energy cost savings if one pump can be shut-down by eliminating all of the continuous prefill lines in the system.