Name: Spirax Sarco MFP14 Condensate Pump | Pressure Powered Condensate Recovery | Spirax Sarco Inc.
Brand: Spirax Sarco

Condensate and heat recovery systems > Mechanical pumps

MFP14 condensate pump

MFP14 is a Spirax Sarco automatic condensate pump with a ductile iron body that uses steam or compressed air to lift condensate and other liquids where ordinary trap drainage is limited by backpressure, vacuum or low differential pressure.

Steam- or compressed-air-powered automatic condensate pumpSuitable for lifting condensate from vacuum equipment, pressurised plant and low-level return pointsCan be paired with ball float steam traps on temperature-controlled heat exchangersCurrent selector keeps verified MFP14 complete-unit flanged sizes only

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Model MFP14

Product type Automatic condensate pump

Body material Ductile iron

Documented sizes DN25, DN40, DN50, DN80 x DN50

Connections Flanged PN16 in selector / threaded BSP also documented

Pressure boundary PN16 / motive inlet up to 13.8 bar g

Minimum inlet head 0.15 m minimum, 0.3 m recommended

Where MFP14 fits

MFP14 condensate pump is the model-specific route for users already looking for MFP14, a pressure powered condensate pump or a non-electric way to lift hot condensate. It sits inside the wider mechanical condensate pumps family but narrows the selection down to one documented pump body and the currently selectable complete-unit sizes.

Documented MFP14 product boundary

The current technical and installation material confirms MFP14 as an automatic pump powered by steam or compressed air for lifting condensate and other liquids. In suitable duties it can discharge directly from vacuum equipment or pressurised plant, and when paired with ball float steam traps it is intended to remove condensate from temperature-controlled heat exchangers, including vacuum conditions.

The documented range also includes MFP14S and MFP14SS, but this page keeps the selector focused on standard MFP14 complete-unit options only.

MFP14 is the ductile iron version
MFP14S is the cast steel version
MFP14SS is the stainless steel version
documented connection coverage includes 1", 1 1/2", 2" and 3" x 2" threaded BSP routes, plus DN25, DN40, DN50 and DN80 x DN50 flanged routes
the MFP14 pressure boundary is PN16, with motive gas inlet pressure up to 13.8 bar g

Selection and installation points

Before final specification, confirm motive pressure, total backpressure, actual condensate load and installation height. The same documentation states that total lift plus backpressure must stay below the available motive inlet pressure.

minimum inlet head is 0.15 m, with 0.3 m recommended
pumped volume per cycle is 7 litres on DN25 / DN40, 12.8 litres on DN50, and 19.3 litres on DN80 x DN50
flash steam should be vented or condensed before condensate enters the pump
current ordering guidance states that flanges and check valves are specified separately

Return to mechanical condensate pumps to compare MFP14 with wider pressure powered pumping options.
Compare electrical condensate pumps when the project needs a conventional motor-driven pumped return.
Review practical methods of preventing stall when the application starts from exchanger stall rather than from the MFP14 model name.

Continue the MFP14 selection path

MFP14 selection usually sits between hot condensate lifting, low differential pressure drainage and wider condensate recovery decisions.

Compare the wider mechanical pumping range

Return to the mechanical condensate pump family to compare MFP14 with pump traps, pressure powered pumps and wider non-electric condensate recovery routes.

See mechanical condensate pumps

Confirm where MFP14 fits

Review stall guidance when the application starts from a temperature-controlled heat exchanger, backpressure or vacuum drainage problem rather than from a model number.

Review stall guidance

Check the electrical pumping route

Compare electrical condensate pumps when the project is better suited to a conventional receiver-and-motor arrangement.

Compare electrical pumps