• Mega Spray System
  • Mega Spray Head Valves
• Mega developed and patented its spray heads in 1976 and has continually improved them since. Genuine Mega spray heads are fully adjustable for fan volume, width, and direction. Precision water application is a simple matter of proper selection of spray head settings and the number of spray heads activated.
• Standard Mega spray head valves are constructed of high-quality aluminum alloy. We offer optional stainless steel models to better resist corrosion and abrasion by the harsh waters often found in mining and construction environments.
• Mega Hydraulic Spray Heads

The Mega hydraulic spray head valve utilizes a custom-made, high quality, heavy-duty, double-acting hydraulic cylinder to open and close the valve portion of the spray head. This spray head is suitable for any heavy equipment prime mover.

• Mega Spray Heads Valves are FULLY adjustable!

Mega spray heads are adjustable and can be fine-tuned to provide the optimal water distribution for a specific application. This allows for high efficiency, reduced water consumption, and prevention of roadway over-watering.

• Mega Water Pumps

The heart of the Mega spray system is the water pump. The water pump is powered by the vehicle's hydraulic system. Mega spray controls ensure proper integration with the chassis’ hydraulic system and ECM. Oil is returned into the truck oil filtration and cooling system.

The Mega M-3 heavy-duty water pump features a direct bolt-on hydraulic motor mount and steel splined coupling to simplify drive motor connection. Heavy-duty shaft and dual bearing design provide long life and high water output for superior spray pattern and water cannon performance.

The Mega M-4B high performance water pump also features direct bolt-on hydraulic motor mount and steel splined coupling to simplify drive motor connection. The M-4B pumps are available in both standard cast iron as well as corrosion-resistant models with stainless steel waterways.

• Mega Cab Control

The in-cab spray control module provides independent control of each spray head, water valve and accessory of the Mega water tank. Included in the cab control module is an LED type water level gauge. Our control module is built for rugged use in the harshest environments of mining and construction.

• Electro-Hydraulic Spray Control System

For the most demanding mining and construction environments we provide the Mega hydraulic spray control system. The cab control module operates our Mega proprietary hydraulic solenoid spray control module that individually actuates all spray head valves and water valves. The spray control system operates independently from the water pump drive circuit. The solenoid module is housed in a weather tight steel housing. Mega fully supports these systems with spare parts and full time Product Support.

• Water Level Gauges

There are two electronic water level gauges, one in the cab control module inside the cab and the other on the solenoid control module mounted on the tank for easy viewing while filling.

• Direct Pin Mounting with Line-Bored Holes

Mega MAC tanks pin directly to the rear pivot mounts of the truck chassis. Line boring the rear pivot mounts ensures accurate direct pin installation of the tank. Mega ADT tanks do not require welding to the frame. New pivot pins and shims are supplied with the tank.

• Flexible Tank Mounting

The truck chassis is allowed to flex beneath the spring type front mounting tie downs.  No welding is required to install these mounts.

• Exterior Alkyd Enamel Paint

All Mega tanks are fully abrasive blasted prior to application of heavy anti-corrosive prime paint then top coated with customer choice of one color. Tank color is most often matched to the tractor color. Custom coatings and graphics are available upon request.

• LED Lighting & Utility Lights

All clearance, stop, and tail lighting on Mega tanks are LED type for long life and low maintenance. Two work lights are mounted on the rear bulkhead of the tank beneath water shedders. The lights are controlled by switches in the cab control.

• Ladder and Hand Rails

All Mega tanks include an access ladder to the top of the tank. Our standard ladder features tread grip rungs for a sure footed grip and hand rails at the top of the ladder for ease of access to the top of the tank. Optional customized safety railing is available upon request to meet your exact requirements (extra charges may apply).

• Fill Port with Safety Grate

A bolt-in trash screen safety grate is included in the main fill port. Conical shaped fill ports, custom locations, and custom design fill ports are available as optional equipment.

*MAC6 have additional access ports.

• Rear Spray Bar with 3 or 4 Spray Heads

The rear spray bar is designed to fully utilize the capability of the water pump. Our MAC 5 & 6 features 3 hydraulically actuated Mega spray head valves in which the two outer spray heads include swivel couplings. Our MAC 7, 8 & 9 models feature 4 hydraulically actuated Mega Spray Heads (with no swivel couplings).

• Mud Flaps

Mud flaps fore and aft of rear drive tires are standard equipment on all Mega MAC tanks.

• Oil to Air Heat Exchanger

Mega MAC kits for articulated truck tanks include a hydraulic oil cooler to prevent overheating during extended water pump operation. This eliminates the risk of hydraulic system contamination which is associated with competitive systems that utilize oil-to-water heat exchangers.

• Technical Manuals

Each Mega water tank includes a complete set of the following manuals: operators manual, maintenance manual, illustrated parts breakdown, field installation manual with service drawings & schematics, maintenance inspection schedules & recommended spare parts manual. Additional sets of manuals are available for purchase. For more information or visit our website @ www.megacorpinc.com/techmanuals.asp

• Warranty Coverage

Mega protects your investment by providing a full one year warranty, unlimited hours against defects in materials and workmanship. Extended warranties are available upon request (additional charges apply).

MAC6

• 30" Fill Port with Safety Grate & Anti-Skid Walkaway
• External Piping
• Mega M-3 Series High Performance Water Pump
• Rear Spray Bar-3 Spray Heads

MAC7 & MAC8

• 36" Fill Port with Safety Grate & Anti-Skid Walkaway
• Internal Piping
• Mega M-4B Series High Performance Water Pump
• Rear Spray Bar-4 Spray Heads

MAC6, MAC7 & MAC8

• Access Ladder and Hand Rails
• Oil to Air Hydraulic Cooler
• Banded Access Manways
• Camera Relocation Bracket (depends on the model)
• Direct Pin Mounting with Line-Bored Holes
• Exterior Alkyd Enamel Paint
• Flexible Front Mounting
• Hydraulic Spray Control System
• LED Lighting, Water Shedders & Utility Lights
• Baffling System
• Mega In-Cab Control with Solenold Box
• Mud Flaps
• Technical Manuals
• Water Level Gauges (One in Cab, One on Tank)

DiSCS Mega Digital Spray Control System

Most Mega water products are now available with the new Mega Digital Spray Control System (DiSCS®). Along with the base DiSCS® System, Mega is offering a GPS optional accessory that allows the operator to automatically control the amount of water applied to road surfaces based on ground speed.

Standard System Features

• Easy to use compact ergonomic operator interface

• In-cab water level indicating system

• Intermittent spray head function with on/off adjustments

• Total system pause function

• Work light and auxiliary controls

• Ability to control all optional spray control functions

• Easy to maintain and troubleshoot logic control systems

Water Pump Protections

• Soft Start/Stop
  • System controlled soft starts/stops to protect against operator induced sudden starts and stops that can decrease drive motor and water pump service life.
• Low Water
  • Automatic soft stop when low water condition is sensed in the tank sump that may cause dry running of the water pump.
• Overheating
  • Automatic soft stop after extended water pump operation with spray heads and water cannon valves closed (no water flowing from the pump).

Advantages

• Reliability
  • DiSCS® utilizes the same Mega water pump, hydraulic motor, spray heads and electrohydraulic controls. There are no complex modifications to the vehicle's hydraulic systems or powertrain-in fact these interfaces do not change at all. The same durable Mega spray system components are maintained with all of the same parts supply, technical support and documentation.
• Versatility
  • DiSCS® is adaptable to most Mega water equipment and can be easily added in the
  • field to machines originally equipped with a base system. The control system can be retrofitted to many older models of water distribution equipment equipped with Mega spray systems. The entire system can be used with competitive water tanks as well.

Standard DiSCS Superbox Features

• Consolidates hydraulic control suite with proven logic control in a weather proof enclosure mounted for easy access. Hydraulic solenoid manifold bank with severe duty spool valves and coils.
• Externally mounted filter assembly to protect hydraulic control valves.
• Logic control modules are conveniently mounted and self diagnostics assist in troubleshooting.
• Durable wiring harness with Duetsch connections throughout for easy coil and spool access.  Harness includes additional pre-wired functions for easy plug-and-play of additional functions.

GPS Speed Sensing

The DiSCS® GPS optional accessory works with the existing Mega spray system hardware which includes water pumps, hydraulic motors, spray heads and DiSCS® electro-hydraulic controls. The option includes a self-contained GPS unit to determine ground speed. The GPS system is universal- there is no special application specific engineering required and the system is not vulnerable to contamination like radar-based systems. The GPS option is available for use with most Mega water products and offers the following additional benefits over the base system:

• Advantages
  • GPS Speed Sensing: DiSCS® uses GPS data to determine speed. The GPS system is universal, there is no special application-specific engineering required and the system is not vulnerable to contamination like radar-based systems. *Requires purchase of DiSCS® option.
  • Self-Contained: DiSCS® does not require connections to other vehicle systems to determine speed. Because it is self-contained, it is easy to adapt to a wide variety of machine applications.
  • Automatic Water Consumption Reduction: The DiSCS® system utilizes a PWM (pulse width modulation) strategy to automatically limit the amount of water consumed based on vehicle speed while maintaining road dust control coverage.  Utilizing the PWM strategy avoids the addition of complex and costly variable flow hydraulic systems and the resulting impact on machine reliability. Two application software choices are available and operator selectable (continuous water layer or checker boarding).
  • Automatic Shut-off: The DiSCS® system automatically shuts off the flow of water as the vehicle comes to a stop to prevent puddling. Spraying automatically resumes as the machine begins to move again.
  • Fail-Safe: In the event the DiSCS® system loses its GPS speed signal or otherwise malfunctions, the system reverts to manual mode and allows the machine to continue operating with full capability in the original, manual mode until repairs can be made – no need to immediately down the machine.

• Mega Water Cannons

Mega’s water cannons are designed and built to perform in the most severe environments of mining and construction.  Capable of any water pressures and flows required for the mobile water equipment industry, Mega’s water cannons are ideal for fire suppression, high pressure equipment washing, and most applications that require long-distance, concentrated spray.

• We offer Specialty Nozzles

Mega’s hydraulic water cannons can be fitted with a variety of adjustable nozzles to customize the spray pattern and distance.  In addition to the standard straight bore nozzle, Mega offers fan to stream, fog to stream with foam eduction, and fog to stream nozzles. For more nozzle options please check out our Mega Component & Performance Sourcebook available for download @ www.megacorpinc.com/parts/mega_components.asp or ask your Mega sales representative for more information.

• Mega Foam Education System

The Fire Suppression System is an air-aspirated foam eduction system compatible with any class of foam that can be nozzle-aspirated*. The system consists of a stainless steel (304 grade) foam concentrate tank, water cannon, and foam eduction nozzle. Our medium-expansion nozzles allow for adjustable foam percentages of 1%, 3%, 6%, and 10%, and possible flow rates of 350, 500, and

750 GPM.

The Mega foam tank is mounted externally on the water tank, and is available in a 60 gallon size. Mega’s foam system can be ordered as an optional on a new Mega water tank, or purchased as a kit and installed on an existing water tank.

• Self-Loading Capability
  • MAC6
    • Mega MAC water tanks feature optional self-loading ability via the discharge pump. Unique to Mega is a built in priming reservoir inside the water tank that floods the suction line with water when the valving switched to load the tank. An auxiliary manual priming pump is also included. Optional suction hoses can be ordered separately.
  • MAC7 & 8
    • Mega's larger MAC water tanks also feature an optional self-loading capability via a separate pump station. The additional water pump is powered hydraulically by diverting hydraulic power from the discharge water pump via a manual diversion valve. The option includes two suction hoses, foot valve, and hose storage tubes.
• Mega Corrosion Resistant Package
  • Mega offers solutions to tank and component corrosion caused by the harsh waters often found in mining and landfill environments. Protecting your tank against corrosion adds longevity and dependability to your purchase, tank and spray system.

The package consists of:

• Stainless steel spray head valves
• Corrosion resistant Mega M4-B water pump with stainless steel waterways
• Stainless steel spray bar and waterways
• Stainless steel solenoid control module enclosure mounted on front bulkhead of tank
• Stainless Steel Spray Head: The Mega stainless steel hydraulic spray head is optimized for use in the most severe environments. The stainless steel hydraulic spray head shares the same design as the Mega aluminum hydraulic spray head, with the exception that all metallic parts that come into contact with water during use are stainless steel. The Mega 3 inch hydraulic spray head valve is actuated by a long life double-acting hydraulic cylinder.
• Corrosion Resistant Mega Water Pump: The Mega corrosion resistant water pump features a Mega M4-B centrifugal pump manufactured with a stainless steel volute case, packing mount and impeller–all surfaces that are in continuous contact with water utilize stainless steel construction.
• Complete Stainless Steel Mega Water Pump: The complete stainless steel Mega water pump features a Mega M4-B centrifugal pump manufactured with a stainless steel frame, volute case, shaft and impeller. It is designed for maximum life in corrosive applications.
• Interior Coatings (Epoxy & Urethane): Mega tanks are abrasive blasted prior to the application of an optional epoxy or aluminum filled moisture cure lining. The epoxy lining is best suited for the harshest acidic, alkaline, and salty waters. The aluminum filled moisture cure lining is very effective in normal to salty waters. Specialty linings including potable water linings are available on request.

*Coating data sheet and MSDS available upon request.

• Factory Installation
  • Mega offers complete factory installation for all models of articulated truck water tanks for both customer-supplied and Mega-supplied chassis. Factory installation includes complete testing prior to delivery. Mega can also provide complete cleaning, painting and detailing of a customer-supplied used chassis if desired.
  • Vertical Side Spray: Two spray head valves are mounted on the front quadrant of the tank with external piping for spraying vertical fans of water. This spray is suitable for spraying hill sides, piles, and berms.
  • Swivel Couplings on Rear Spray Bar: The standard Mega MAC rear spray bar incorporates Genuine Mega spray head valves.  Each spray head rotates 360 degrees horizontally to adjust water spray fan direction.  Optional swivels on each spray head allow for vertical spray direction adjustment.
  • Front Bumper Spray Kit: The front bumper spray is commonly utilized to “sweep” a surface with high pressure fans of water. Spray heads are mounted to spray from both sides of the tractor. The spray heads are fully adjustable for vertical and horizontal directions. The location of the spray bar allows the cab hood to fully tilt and open for engine service. *This item is available by special request.
  • Adjustable Fog-Steam Nozzle: Hydraulically adjustable, variable fog pattern, stream reaches 46m (150 feet). This option requires the purchase of the Water Cannon option. If the adjustable fog-stream nozzle option is not available for selection, please select the required option from a previous page.
  • Anti-Siphon Fill Pipe: The anti-siphon fill pipe is used with any pressurized water source. It is specifically designed to accommodate municipal water systems and fire hydrants requiring an air gap to prevent water siphoning back into the supply.
  • Dump Bar: A dump bar (sometimes called a “drip” or “dribble bar”) is a horizontally arranged 102 mm (4 in.) diameter steel pipe that is drilled along its bottom center line with rows of holes. The dump bar can be either pressurized or non-pressurized. Pressurized dump bars spray penetrating jets of water directly onto the ground surface the width of the tank. Non-pressurized dump bars are gravity fed directly from the bottom of the water tank.
  • Drain Valve: The quick dump option is a large drain located at the bottom rear of the tank. This option is available either manually or hydraulic remote actuated for MAC 5 and 6 as 101mm/4 inch diameter and for MAC 7 and 8 a 203 mm/8 inch diameter.
  • Hose Reel: Hose reels installed on Mega MAC models include high quality rubber water hose and an adjustable fog to stream nozzle. Hose reels come in various sizes and are available in either manual or hydraulic rewind. *Sizes vary by model.
  • Conical Fill Port: The Mega conical fill port is funnel shaped from 1676 mm (66 inch) diameter to 914 mm (36 inch) diameter standing 610 mm (24 inches) tall. This allows for easier location of the water fill pipe sock over the main fill port of the tank. *Adds 279 mm (11 inches) to overall height of the vehicle. This optional feature does not ship installed on kit tanks.
  • Intermittent Spray Package: Intermittent spray is a spray control option on the cab control console that allows for independent spray-on and spray-off timing when wet/dry strip watering is desired. When activated the intermittent spray control will automatically actuate any spray head that is turned on. *This Option is Standard with the DiSCS® system.
  • Camera Relocation: Mounting bracket and cable to relocate camera from the prime mover to the water tank.
  • Fall Protection Tie-Off Points: Multiple D-ring style fall protection tie-off points welded to top of tank.
  • Magnesium Anodes: Magnesium anodes mounted in tank to help minimize corrosion.
  • Additional Technical Manuals: Additional sets of manuals are available for purchase. Each Mega water tank includes a set of the following manuals: operators manual, maintenance manual, illustrated parts breakdown, field installation manual with service drawings & schematics, maintenance inspection schedules & recommended spare parts manual. For more information or visit our website @ www.megacorpinc.com/techmanuals.asp
• QCCP-Quick Change Component Package
  • The quick change component package provides the end user with specific operation critical parts for the Mega water tank spray system. Having these parts on hand can reduce downtime by eliminating wait time for acquiring replacement parts. These kit parts can be customized to an end user’s needs and water tank fleet. Contact your Mega dealer for complete parts kit list details or contact your Mega sales representative at 1-800-345-8889 for more information.
• MAC7 & MAC8
  • Corrosion Resistant Package
  • Swivel Couplings on Rear Spray Bar
• MAC6, MAC7 & MAC8
  • ​Additional Technical Manuals
  • Adjustable Fog-Stream and/or Fan-Stream Nozzle
  • Anti-Siphon Fill Pipe
  • Camera Relocation Bracket (Depends on the model)
  • Cameroa Relocation Cable (Depends on the model)
  • Conical Fill
  • Custom Exterior Coating
  • DISCS Digital Spray Control System
  • Drain Valve
  • Dump Bar
  • Factory Installation
  • Fall Protection Tie-off Points
  • Foam Agent System
  • Front Bumper Spray (Special Request)
  • GPS Speed Sensing (Requires DISCS)
  • Hose Reel
  • Intermittent Spray (Included with DISCS)
  • Interior Coatings (Epoxy & Urethane)
  • Magnesium Anodes
  • Mega Water Cannon
  • On-site Asistance
  • Quick Change Components Package
  • Suction Loading
  • Vertical Side Spray

*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.