Armstrong International MECH-15B3 Kit

The Armstrong International MECH-15B3 is an industrial-grade replacement float mechanism kit designed for 15-B3 and B2 series liquid drainers and steam traps. Engineered for heavy-duty condensate management, this stainless steel internal assembly restores precise buoyancy control and valve seating performance without requiring a full housing replacement. As a "less float" kit, it includes the critical linkage, valve lever, and seating components necessary to remediate float valve failure or mechanical fatigue in high-pressure steam and gas applications. The MECH-15B3 is compatible with both cast iron and forged steel trap bodies, ensuring reliable drainage of liquid from pressurized systems. By replacing worn internal levers and pins, contractors can prevent condensate backup and maintain optimal thermal efficiency in process heat exchangers and drip legs. This kit is a standard inventory item for facility maintenance teams managing Armstrong inverted bucket traps and ball float drainers sensitive to high differential pressures.

• Precision Linkage: Restores high-leverage mechanical action for positive valve shut-off under fluctuating pressures.
• Corrosion Resistance: Manufactured with high-grade stainless steel internals to withstand aggressive condensate and chemical additives.
• Modular Serviceability: Allows for rapid field repair of Armstrong 15B3 units, reducing system downtime and labor costs.
• Universal B2 Compatibility: Engineered to match original equipment manufacturer tolerances for seamless integration into B2 series drainers.
• Improved Seating: Eliminates steam loss and gas bypass by ensuring the valve head aligns perfectly with the seat.

Does this MECH-15B3 kit include the float ball?
No, this assembly is specified as "less float." It includes the internal levers, pins, and valve mechanism; the stainless steel float ball must be purchased separately if your existing one is waterlogged or damaged.

Will this mechanism work for high-pressure air drainers?
Yes, the Armstrong MECH-15B3 is designed for both steam condensate and liquid drainage from compressed air or gas systems, provided the housing is rated for the specific pressure.

How do I know if I need a full mechanism or just the seat?
If the linkage shows signs of "play" or mechanical binding, a full mechanism replacement like the MECH-15B3 is recommended to ensure the valve closes squarely against the orifice.

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.