Tuthill Corp FRTCB Vented Fill Tank Cap with Base

Product Description

The TUTHILL CORP FRTCB is a vented fill tank cap that includes a matching base, designed for use on tanks with 2-inch male threaded openings. The vented design allows pressure equalization within the tank during fluid fill and draw-down cycles, preventing vacuum lock and reducing stress on tank walls. This cap-and-base assembly is a single unit sold as one piece. It is typically installed by plumbing, HVAC, or fluid-handling technicians servicing oil, water, or chemical storage tanks in light commercial and residential applications.

The FRTCB is suited for tanks requiring a 2-inch male threaded fill port. It is commonly found in oil-fired heating system day tanks, boiler feed tanks, and similar fluid storage applications where a vented cap is required to maintain atmospheric pressure balance. The included base provides a secure threaded connection to the tank opening, ensuring a stable mount for the cap assembly.

Key Features

• Vented cap design prevents vacuum buildup during fluid draw-down
• Includes base for a complete cap-and-base assembly
• Fits all 2-inch male threaded tank openings
• Sold as a single unit (quantity of 1)
• Weighs 2 pounds for easy handling and field installation

Compatibility

Designed as an OEM-style replacement or service part for tanks with 2-inch male threaded fill openings, typical in residential and light commercial fluid storage and heating system applications.

Installation Notes

Installation is performed by a qualified plumbing or HVAC technician. Shut off the associated system and relieve any internal tank pressure before removing the existing cap or base. Ensure the tank threads are clean and undamaged before threading on the new base. Follow applicable local plumbing codes and the tank manufacturer guidelines when servicing fill port hardware.