
Mepco (Dunham Bush) ML7222 Trap
The Mepco (Dunham Bush) ML7222 is a high-capacity 3/4" float and thermostatic steam trap engineered for low-pressure steam heating systems and process equipment. Designed as a direct replacement for the legacy 40-215 series, the 44-215A F&T trap features a heavy-duty cast iron body and durable stainless steel internal parts, including the float, lever, and valve pin. This unit is rated for a maximum operating pressure of 15 PSI and delivers a robust discharge capacity of approximately 2,175 lbs/hr, making it an essential component for condensate management in unit heaters, steam mains, and large heat exchangers.
The H-pattern configuration with double inlets and double outlets provides versatile piping options, allowing for easier retrofitting in tight mechanical spaces. The integrated thermostatic air vent utilizes a calibrated balanced-pressure element to immediately discharge air and non-condensable gases, preventing steam system air binding and ensuring rapid heat-up at startup. This trap provides continuous condensate drainage without the risk of water hammer, maintaining a water seal at the seat to prevent live steam loss during modulating pressure cycles.
Key Benefits- Enhanced Versatility: The double inlet/outlet H-pattern design simplifies installation and re-piping in legacy Dunham Bush systems.
- Superior Durability: Standardized stainless steel internals resist corrosion and erosion for extended service life in demanding steam applications.
- Efficient Air Removal: High-capacity balanced pressure thermostatic element vents air at temperatures just below saturated steam.
- Optimized Heat Transfer: Continuous condensate discharge prevents backing up into heat exchange equipment, maximizing BTU efficiency.
- Serviceable Design: The 44-series allows for in-line maintenance and head assembly replacement without breaking pipe connections.
What is the difference between the Mepco 40-series and 44-series traps?
The 44-series, like the ML7222, is the modern replacement for the older 40-series. It features double inlets and outlets compared to the single-port design of the 40-series, allowing for more flexible installation while maintaining the same critical dimensions and 15# pressure rating.
Can this trap handle vacuum return systems?
Yes, the Mepco ML7222 is suitable for both gravity and vacuum steam heating systems. Its float-operated valve remains unaffected by changes in pressure differential, ensuring reliable operation even against back pressure.
Does this unit require a separate strainer?
While the 44-215A is highly robust, installing a Y-type strainer upstream is recommended to protect the valve seat from scale and pipe debris, ensuring the longevity of the stainless steel valve pin and orifice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Mepco (Dunham Bush) ML7222 Trap
The Mepco (Dunham Bush) ML7222 is a high-capacity 3/4" float and thermostatic steam trap engineered for low-pressure steam heating systems and process equipment. Designed as a direct replacement for the legacy 40-215 series, the 44-215A F&T trap features a heavy-duty cast iron body and durable stainless steel internal parts, including the float, lever, and valve pin. This unit is rated for a maximum operating pressure of 15 PSI and delivers a robust discharge capacity of approximately 2,175 lbs/hr, making it an essential component for condensate management in unit heaters, steam mains, and large heat exchangers.
The H-pattern configuration with double inlets and double outlets provides versatile piping options, allowing for easier retrofitting in tight mechanical spaces. The integrated thermostatic air vent utilizes a calibrated balanced-pressure element to immediately discharge air and non-condensable gases, preventing steam system air binding and ensuring rapid heat-up at startup. This trap provides continuous condensate drainage without the risk of water hammer, maintaining a water seal at the seat to prevent live steam loss during modulating pressure cycles.
Key Benefits- Enhanced Versatility: The double inlet/outlet H-pattern design simplifies installation and re-piping in legacy Dunham Bush systems.
- Superior Durability: Standardized stainless steel internals resist corrosion and erosion for extended service life in demanding steam applications.
- Efficient Air Removal: High-capacity balanced pressure thermostatic element vents air at temperatures just below saturated steam.
- Optimized Heat Transfer: Continuous condensate discharge prevents backing up into heat exchange equipment, maximizing BTU efficiency.
- Serviceable Design: The 44-series allows for in-line maintenance and head assembly replacement without breaking pipe connections.
What is the difference between the Mepco 40-series and 44-series traps?
The 44-series, like the ML7222, is the modern replacement for the older 40-series. It features double inlets and outlets compared to the single-port design of the 40-series, allowing for more flexible installation while maintaining the same critical dimensions and 15# pressure rating.
Can this trap handle vacuum return systems?
Yes, the Mepco ML7222 is suitable for both gravity and vacuum steam heating systems. Its float-operated valve remains unaffected by changes in pressure differential, ensuring reliable operation even against back pressure.
Does this unit require a separate strainer?
While the 44-215A is highly robust, installing a Y-type strainer upstream is recommended to protect the valve seat from scale and pipe debris, ensuring the longevity of the stainless steel valve pin and orifice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Mepco (Dunham Bush) ML7222 is a high-capacity 3/4" float and thermostatic steam trap engineered for low-pressure steam heating systems and process equipment. Designed as a direct replacement for the legacy 40-215 series, the 44-215A F&T trap features a heavy-duty cast iron body and durable stainless steel internal parts, including the float, lever, and valve pin. This unit is rated for a maximum operating pressure of 15 PSI and delivers a robust discharge capacity of approximately 2,175 lbs/hr, making it an essential component for condensate management in unit heaters, steam mains, and large heat exchangers.
The H-pattern configuration with double inlets and double outlets provides versatile piping options, allowing for easier retrofitting in tight mechanical spaces. The integrated thermostatic air vent utilizes a calibrated balanced-pressure element to immediately discharge air and non-condensable gases, preventing steam system air binding and ensuring rapid heat-up at startup. This trap provides continuous condensate drainage without the risk of water hammer, maintaining a water seal at the seat to prevent live steam loss during modulating pressure cycles.
Key Benefits- Enhanced Versatility: The double inlet/outlet H-pattern design simplifies installation and re-piping in legacy Dunham Bush systems.
- Superior Durability: Standardized stainless steel internals resist corrosion and erosion for extended service life in demanding steam applications.
- Efficient Air Removal: High-capacity balanced pressure thermostatic element vents air at temperatures just below saturated steam.
- Optimized Heat Transfer: Continuous condensate discharge prevents backing up into heat exchange equipment, maximizing BTU efficiency.
- Serviceable Design: The 44-series allows for in-line maintenance and head assembly replacement without breaking pipe connections.
What is the difference between the Mepco 40-series and 44-series traps?
The 44-series, like the ML7222, is the modern replacement for the older 40-series. It features double inlets and outlets compared to the single-port design of the 40-series, allowing for more flexible installation while maintaining the same critical dimensions and 15# pressure rating.
Can this trap handle vacuum return systems?
Yes, the Mepco ML7222 is suitable for both gravity and vacuum steam heating systems. Its float-operated valve remains unaffected by changes in pressure differential, ensuring reliable operation even against back pressure.
Does this unit require a separate strainer?
While the 44-215A is highly robust, installing a Y-type strainer upstream is recommended to protect the valve seat from scale and pipe debris, ensuring the longevity of the stainless steel valve pin and orifice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.











