Hankison 505BC Trap

The Hankison 505BC Trap, also known as the Triple L Trap (Liquid-Level-Lead), is a heavy-duty, high-capacity pneumatic drain valve engineered specifically for catastrophic liquid slugs in compressed air systems. Built with a rugged cast iron housing and stainless steel internals, this mechanical float drain manages heavy condensate loads without consuming valuable compressed air. It is standard equipment for large centrifugal compressors, massive aftercoolers, and terminal receiver tanks where consistent moisture separation is critical. The mechanical pilot-operated valve mechanism ensures positive opening and closing even when faced with heavy oil or emulsified fluids. With a maximum pressure rating of 300 PSIG and a discharge capacity reaching several gallons per minute, it outperforms standard timed solenoids in high-demand industrial environments. For contractors, the 1/2-inch and 3/4-inch NPT connection options allow for straightforward integration into existing condensate management headers, ensuring system dry-side protection.

• Maintenance-Free Operation: The automatic liquid drain utilizes a buoyancy-based float system that requires no electrical power or complex timing adjustments.
• Air Loss Prevention: Unlike timed solenoid valves, the 505BC only discharges when condensate is present, maintaining system pressure and lowering energy costs.
• Industrial Durability: The epoxy-coated cast iron body resists corrosion and chemical breakdown caused by aggressive synthetic compressor lubricants.
• Sludge Handling: Designed with a large discharge orifice to prevent clogging from pipe scale and oily residuals common in older piping networks.

How does the Hankison 505BC handle heavy oil emulsions?
The Hankison 505BC uses a pilot-operated mechanism that utilizes system pressure to force the discharge valve open, providing the necessary torque to clear thick oil-and-water emulsions that would stall lighter-duty drains.

Can this trap be installed outdoors or in freezing conditions?
While the cast iron construction is robust, the unit must be protected from freezing. In cold environments, heat tracing or insulation should be applied to prevent the condensate from expanding and cracking the housing.

What is the maximum flow rate for the 505BC Triple L Trap?
This heavy-duty drain is rated for significantly higher discharge rates than standard 505 series units, making it the preferred choice for bulk liquid removal in systems exceeding 5,000 CFM.

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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.