Boiler-Feed Applications - MDAS Series

The Marlo 'MDAS' Series is designed for larger industrial boiler-feed applications. Individual tank capacity ranges from 50,000 grain to 980,000 grain with continuous flow rates of 10-300 GPM. Tank diameters from 20" to 72" and service pipe connections from 1.25" NPT to 3" NPT are available. Multi-tank parallel, twin alternating, and triple alternating systems are available with a wide variety of timer and water meter controllers.

Features/Benefits

  • Epoxy lined and prime exterior finished carbon steel pressure vessels. Non-ASME construction with 100 psig working pressure.
  • High capacity, strong-base anion exchange resin in chloride-form.
  • Galvanized steel face-piping assembly with cast iron, normally-open, "Y" pattern diaphragm control valves.
  • Pilot stager valve controller for automatic regeneration operation.
  • Pre-wired in a NEMA-12 enclosure with an adjustable timeclock for regeneration initiation.
  • Self-adjusting flow control to maintain accurate backwash rates.
  • Pressure-compensated brine injector for correct brine flow and concentration.
  • PVC media-retaining underdrain distribution system in either hub-radial or header-lateral configurations for minimal pressure drop and proper regeneration.
  • Rigid, polyethylene brine tanks with dry or wet-salt storage and water re-fill valves.
  • Caustic feed system including metering pump, pump stand, and automatic controls.

Optional Equipment

  • ASME constructed, stamped, and certified pressure vessels for varying working pressures.
  • "Safety Blue" finish painted vessel exteriors. Alternative colors are available.
  • Mechanical automatic-reset water meters for volume initiated regeneration.
  • Electronic water meters for volume initiated regeneration, flow display, and totalization.
  • Twin alternating configurations with remote water meter (mechanical or electronic) and electro-mechanical controller for continuous soft water supply.
  • 'MX' Electronic programmable cycle controllers for systems up to 3 softener tanks.
  • Flexible system control for almost any configuration using timer or volume initiated regeneration. "Additive Flow Feature" for automatically bringing additional tanks on-line as service flow increases.
  • Inlet/outlet pressure gauges and sample valves.
  • Sch 80 PVC face-piping and thermo-plastic diaphragm valves.
  • 304/316 Stainless steel pressure vessels, face-piping, and internal distributors.
  • Manual system valves for operator-performed regeneration cycle.
  • Bulk brine storage vessels and brine pump skid systems.
  • Programmable Logic Control (PLC) electrical packages.
  • Skid mounted, pre-piped, and pre-wired systems (for single/multiple softeners).

Features/Benefits

  • Fiberglass reinforced polyester (FRP) pressure vessels for 150 psi working pressure.
  • High capacity, strong-base anion exchange resin in chloride-form.
  • Brass, top mounted twin-tank control valve with integral brine injector.
  • Built-In control valve alternator for continuous dealkalized water supply.
  • Automatic-reset water meter for volume initiated regeneration.
  • Self-adjusting flow control to maintain accurate backwash rates.
  • Internal distribution system for minimal pressure drop and optimal regeneration.
  • Rigid, polyethylene brine tanks with dry-salt shelf platform and water re-fill valves.
  • Caustic feed system including metering pump, pump stand, and automatic controls.
  • Optional Equipment
  • Electronic water meter for volume initiated regeneration, flow display, and totalization.
  • Skid mounted, pre-assembled, and pre-loaded systems.