FOAM EDUCTORS |
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INSTRUCTIONS FOR SAFE OPERATION AND MAINTENANCE | |
| WARNING: Read instruction manual before use. Operation of this device without understanding the manual and receiving proper training is a misuse of this equipment. Users who have not read and understood all operating and safety instructions are not qualified to operate this portable foam system. This manual should be kept available to all operating and maintenance personnel. | |
| CAUTION: This instruction manual is intended to familiarize firefighters and maintenance personnel with the operation, servicing, and safety procedures associated with the PRO/pak Portable Foam System. | |
| DANGER: Lack of foam can place operator at risk of injury or death. Establish foam flow before advancing into hazardous situations. Make sure you do not run out of foam concentrate before the task is complete. Check concentrate level periodically and keep an adequate supply on hand. | |
| WARNING: Improper use of foam can result in injury or damage to the environment. Follow the foam concentrate manufacturer's instructions and fire service training to avoid the following: • Using the wrong type of foam on a fire, i.e. Class A foam on Class B flammable liquid fire • Mishandling of concentrates • Plunging foam into pools of liquid fuels • Directing foam onto yourself or other personnel | |
| WARNING: There is a wide variety of foam concentrates. Each user is responsible for verifying that any foam concentrate chosen to be used with this unit has been tested to assure that the foam obtained is suitable for the purpose intended. | |
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RATED FLOW Minimum Operating Condition 1-800-561-0400 |
| 1.0 Meaning of Signal Words
2.0 Safety 3.0 General Information 3.1 Part Identification 3.2 Left or Right Hand Operation 4.0 Foam Selection 4.1 Class A Foam 4.2 Class B Foam 4.3 Foam Compatibility 5.0 Nozzle Selection 6.0 Operation 6.1 Hose Connection |
6.2
Filling Tank 6.3 Connect Hose and Nozzle 6.4 Setting Foam Concentration 6.5 Controlling Flow 6.6 Foam Quality 6.7 Shut Down After Use 7.0 Trouble-Shooting 8.0 Clean up and Maintenance 9.0 Specifications 10.0 Drawings and Parts List 11.0 Warranty |
| 1.0 | A safety related message is identified by a safety alert symbol and a signal word to indicate the level of risk involved with a particular hazard. Per ANSI standard Z535.4-1998 the definitions of the three signal words are as follows: |
| 3.0 | GENERAL INFORMATION | ||||||||||||||||||
| The PRO/pak Portable Foam System is a very
versatile eductor-type foam application appliance. It can be used with 0.1%-1%
Class A foam concentrates for wildland, rural and urban fire suppression on
Class A fuels (wood, paper, combustible materials). On Class A materials the
PRO/pak is intended to be used for direct extinguishment, overhaul, and wetting
of fuels. Some foam concentrates are corrosive, we recommend using only Class A
concentrates that have received USDA and USFS approval.
On Class B materials the PRO/pak is primarily intended to be used for vapor suppression. It can be used with 1% and 3% AFFF concentrates on flammable liquids that do not contain alcohol. It can be used with 3% and 6% Alcohol Resistant AFFF Class B concentrates on flammable liquids containing polar solvents. It can also be used with3%X 6%or 6%Class B foam concentrates. When ever possible back up the PRO/pak with additional water/foam capabilities for added safety. The The Pro/pak can be used on ignited liquid fuels, but it's foam
application rate is very limited. Based on NFPA 11 this unit should not be
used on ignited Class B fuels with an area greater than 120 square feet (10
x 12 feet) or 11 square meters. The PRO/pak should not be used on burning
Polar Solvents with an area greater than 60 square feet (6 x 10 feet) or 5.5
square meters. | |||||||||||||||||||
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| 3.2 | LEFT or RIGHT HAND OPERATION |
| The Control Block and Valve Assembly can be mounted
on the Foam Tank for right or left hand operation. To switch hands, remove the Shoulder Strap from the Pull Pins. Remove the Circle Cotters from the Pull Pins and remove the Pull Pins themselves. Pull the Control Assembly straight up and out of the tank. Turn the Control Unit around and reinstall the Pull Pins, the Circle Cotters, and the Shoulder Strap.
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| 4.0 | FOAM SELECTION |
| In any eductor type system the accuracy of the foam concentrate
to water ratio will depend upon the viscosity (thickness) of the foam concentrate. The more viscous, or thick, the foam concentrate, the greater the amount of energy required to draw the concentrate into the eductor. The viscosity of most foam concentrates changes with temperature, some thickening to a gel at temperatures of 40º F (4º C). The PRO/pak percentage knob has two sides, the green Class A side was calibrated for 20 Centipoise Class A foam concentrates and the red, Class B, side was calibrated with National Foam's Universal Gold® AFFF concentrate.
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| Class A foam concentrates are generally less viscous than Class B foam concentrates. Do not use 1 percent Class B concentrates with the percentage knob set at 1 percent on the Class A side of the knob. Using 1% Class B foam on the 1% Class A setting may cause the actual percentage to be less than 1%. | |
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Actual foam concentrations vary with changes in water flow, foam
concentrate temperature and
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| 4.3 | FOAM COMPATIBILITY |
| Do not mix different types of foam concentrates or foams of the same type from different manufacturers. Mixing of foam concentrates can cause the contents of the foam tank to gel and produce unpredictable results. | |
| Application rates for this unit are limited and are not intended for ignited fire situations. Based on NFPA 11, this unit should not be used for ignited areas greater than 10' x 12' (120 sq. ft.) of Hydrocarbon fuels, or 5' x 12' (60 sq. ft.) of Polar Solvents. |
| Piercing Nozzle — is primarily for use with Class A foam solutions in deep-seated fires. Foam expansion will be negligible. It can be used where an application of solution is needed but the location is inaccessible. Part # U-PN12 is available as optional equipment. |

| START UP PROCEDURE - To Make Foam - Connect water supply. Attach the desired nozzle to the Quick-Connect. Turn the Percentage Knob to the desired percentage. Twist the Valve Handle to start water flow. |
| TO SHUT DOWN - To prevent concentrate from drying in the foam passages the following is recommended. While still connected to water supply, remove Circle Cotters and Pull Pins. Remove Control Unit from tank. Attach the Cap directly to the Quick-Connect on the Control Block. Turn the valve half way on for a few seconds. This will back flush a small amount of water through the foam passage. Rotate the Percentage Knob back and forth to make sure all foam passages are flushed. |
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TO CLEAN OUT IF PLUGGED - Remove screw #2, spring #3, and knob #4. Inspect the underside of the knob. Make sure the foam passages are clear. Do not scratch the flat face of the knob. Inspect the 2 holes in the top of the Control Block #5. If they are plugged, pull pins #1, remove Block Assembly and clean out Pickup Tube and holes. |
| The PRO/pak's eductor will not work if the backpressure from the outlet hose or nozzle is too high. The 25' (7.5m) U-HS25 optional hose is the maximum length that will work with the PRO/pak. Adding additional hose, or using other hose assemblies and nozzles, may cause the PRO/pak to not function properly. | |
| There is no check valve in the PRO/pak eductor system. Do not install a shut off valve between the PRO/pak and the nozzle. This can cause the foam tank to fill with water and dilute the foam concentrate. |
| Symptom | Possible Cause | Remedy |
| PRO/pak will not make foam | Out of foam | Refill Tank |
| Percentage knob is OFF | Select desired percentage | |
| Percentage knob is plugged | Remove screw on Percentage Knob, inspect and clean holes in top of control block and foam passages in bottom of Percentage Knob | |
| Foam is Intermittent | Foam tank is nearly empty | Refill tank |
| PRO/pak tilted | Keep Twist Grip horizontal | |
| Air vents are plugged | Make sure that the small black rubber valve on the inside of the foam tank lid is not stuck down with dried foam concentrate | |
| Poor quality foam | Debris in nozzle | Inspect nozzle, look for plugged holes |
| Debris under knot | Unscrew knob, inspect and clean | |
| Foam solution velocity too high | Partially close Flow Control | |
| Foam gets thick when cold | Select another foam |
| U.S. Units | Metric Units | |
|---|---|---|
| Tank Capacity (to bottom of fill port) | 2.5 U.S. gallons | 9.5 liters |
| Nominal flow (all nozzles) | 12 gpm at 100 psi | 45 l/min at 6.8 bar |
| Weight Empty | 11.5 lb | 5.2 kg |
| Weight Full | 30.1 lb | 13.6 kg |
| Length x Width x Height | 13.5 x 10.75 x 17 in | 345 x 275 x 430 mm |
| Operating Pressure Max/Min | 500/40 psi | 34/2.7 bar |
| Straight Stream - Reach | 50 feet at 100 psi | 15 meters at 6.8 bar |
| Low Expansion - Reach | 37 feet at 100 psi | 11 meters at 6.8 bar |
| Medium Expansion - Reach | 9 feet at 100 psi | 3 meters at 6.8 bar |
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*Specify Coupling Type
| # | Description | Qty |
| 1 | Filter Screen-U165 | 1 |
| 2 | Fill Port Leach-U166 | 1 |
| 3 | Valve Umbrella-VM4290 | 2 |
| 4 | Screw on Lid-U170 | 1 |
| 5 | Contents Wheel-UL501 | 1 |
| 6 | Fill Port Handle-U161 | 1 |
| 7 | Name Label-UL521 | 1 |
| 8 | 10-25x5/8 SS Screw-VT10-28BH625 | 2 |
| 9 | SS Washer-VW500x203-60 | 3 |
| 10 | Tank-U100* | 1 |
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