Manual Foam Around-the-Pump

Manual Proportioning for Class A or B Foam

Many departments may not be able to justify the cost of a complicated electronic foam system. A simple and cost effective way to provide your fire fighting vehicles with Class A and/or Class B foam is with an around-the-pump, manual foam system like this. Specially engineered, highly efficient eductors and laser cut metering valve orifices are the key to these high performance systems. Many manual
systems on the market today can't deliver foam at these rates.

System Features

  • Economical foam system provides the most foam for the lowest cost
  • Operator selected setting for correct foam flow in seconds
  • Adjusts foam up or down quickly for all situations
  • Wide operating range
  • Proven reliable for high flow operations

MFA200 Series Panel Features

  • Printed table on the face of the unit helps determine the required value setting
  • Class A Foam System metering valve provides foam proportioning of 1/4%, 1/2%, and 1%
  • Class B Foam System metering valve provides foam proportioning of 3% and 6%

MFA300 Series Panel Features

  • The required valve setting is simply set by adjusting the control knob to the discharge water flow (no table to reference)
  • Class A Foam System metering valve provides foam proportioning of 1/2%, and 1%
  • Class B Foam System metering valve provides foam proportioning of 3% and 6%

System Diagram

System Capacity

Foam Concentration MFA200 Maximum Water Flow gpm (LPM) MFA201 Maximum Water Flow gpm (LPM) MFA220 Maximum Water Flow gpm (LPM) MFA315 Maximum Water Flow gpm (LPM) MFA342 Maximum Water Flow gpm (LPM) MFA320 Maximum Water Flow gpm (LPM)
Class A Class B Class A Class B Class A Class B Class A Class B
0.25% 2000 (7570) N/A 2000 (7570) N/A N/A N/A N/A N/A
0.5% 1000 (3785) N/A 1000 (3785) N/A 3000 (11356) N/A 3000 (11356) N/A
1.0% 500 (1892) N/A 500 (1892) N/A 1500 (5678) N/A 1500 (5678) N/A
3.0% N/A 1000 (3785) N/A 1000 (3785) N/A 1400 (5299) N/A 1400 (5299)
6.0% N/A 500 (1892) N/A 500 (1892) N/A 700 (2649) N/A 700 (2649)

Attack Capability

Class A Foam Concentration
Maximum Coverage per Critical Application Rate (Iowa Formula)
Foam Concentration MFA201 Max. Water Flow cu. ft (cu. m) MFA220 Max. Water Flow cu. ft (cu. m) MFA342 Max. Water Flow cu. ft (cu. m) MFA320 Max. Water Flow cu. ft (cu. m)
0.25% 200000 (5663) 200000 (5663) N/A N/A
0.5% 100000 (2831) 100000 (2831) 300000 (8495) 300000 (8495)
1.0% 50000 (1415) 50000 (1415) 150000 (4247) 150000 (4247)
Class B Foam Concentration
Hydrocarbon @ 0.10 gpm/sq. ft (0.37854 LPM/sq. m)
Foam Concentration MFA201 sq. ft (sq. m) MFA220 sq. ft (sq. m) MFA342 sq. ft (sq. m) MFA320 sq. ft (sq. m)
3.0% 10000 (929) 10000 (929) 14000 (1300) 14000 (1300)
6.00% 5000 (465) 5000 (465) 7000 (650) 7000 (650)
Polar Solvent @ 0.20 gpm/sq.ft (0.757 LPM/sq.m)
3.0% 5000 (465) 5000 (465) 7000 (650) 7000 (650)
6.0% 2500 (232) 2500 (232) 3500 (325) 3500 (325)

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