Xylem-Hoffman Specialty 404424 1″ NPT 15 PSI Series B3 Cast Iron Inverted Bucket Steam Trap

Description

Xylem-Hoffman Specialty Series B3 Inverted Bucket Steam Trap — Model B3015A-4

The Xylem-Hoffman Specialty Series B3 Inverted Bucket Steam Trap (SKU 404424, Model B3015A-4) is a dependable, heavy-duty solution engineered for efficient condensate removal in commercial and industrial steam systems. Built with a rugged cast iron body, this trap is designed to withstand the demanding conditions of steam distribution and process heating applications, delivering long service life with minimal maintenance.

The inverted bucket mechanism provides continuous, reliable operation by leveraging the natural buoyancy of steam versus condensate. When steam enters the inverted bucket, the bucket floats and holds the valve closed; as condensate accumulates, the bucket sinks and the valve opens to discharge — a proven, self-regulating cycle that prevents steam loss while efficiently eliminating condensate and non-condensable gases.

Key Specifications

• Model: B3015A-4
• SKU: 404424
• Series: B3
• Connection Size: 1″ NPT
• Maximum Working Pressure: 15 PSI
• Orifice Size: 0.500″
• Body Material: Cast Iron
• Trap Type: Inverted Bucket

Features & Benefits

• Cast iron construction for durability and long service life in steam environments
• Inverted bucket design provides reliable, self-modulating condensate discharge
• 1″ NPT connections for straightforward installation into standard steam piping
• 15 PSI maximum working pressure suits low-pressure steam heating systems
• 0.500″ orifice sized for optimal condensate handling capacity at rated pressure
• Vents air and non-condensable gases to maintain system efficiency
• Minimal moving parts reduce maintenance requirements and downtime
• Trusted Xylem-Hoffman Specialty engineering for consistent steam trap performance

Typical Applications

• Low-pressure steam heating systems in commercial and institutional buildings
• Radiator and unit heater condensate return lines
• Steam distribution mains and branch lines
• Process steam equipment condensate drainage