McDonnell & Miller 310453 Cartridge and Strainer

When you are servicing boiler water feeders, debris in the line is your primary enemy for valve seat failure. The McDonnell & Miller 310453 (Model CTRD-101) is a high-performance replacement cartridge and strainer kit designed to restore the mechanical integrity of Series 47, Series 247, Series 847, and 101A electric water feeders. This black cartridge assembly features a precision-engineered valve mechanism and a stainless steel strainer basket that effectively traps particulates before they can reach the internal orifice, preventing low water cut-off nuisance calls. As an industry-standard HVAC repair part, the CTRD-101 allows for a clean "drop-in" rebuild of the feeder valve, ensuring the mechanical water feeder maintains a tight seal and accurate proportional feed. Whether you are working on residential steam boilers or commercial hydronic systems, keeping a McDonnell & Miller 310453 in your truck ensures you can resolve flooding or sticking issues without replacing the entire water feeder assembly.

• Direct Compatibility: Engineered specifically for McDonnell & Miller 101A, 47, 47-2, 247, 247-2, and 847 series feeders.
• Total Solution Kit: Includes the replacement cartridge, strainer basket, and a Tetraseal O-ring for a leak-proof installation.
• Durable Construction: Built to withstand low-pressure steam and hot water environments with maximum vessel pressures up to 35 psi.
• Debris Protection: The integral sediment strainer prevents scale and pipe dope from fouling the valve seat.
• Labor Efficiency: Simplifies field service by allowing the technician to replace internal components without breaking the main piping connections.

• How do I know if the CTRD-101 is the correct kit for my feeder? If your feeder is a series 101A, 47, 247, or 847, this is the exact OEM kit. Check the color of the existing cartridge; the CTRD-101 is black, whereas the CTRD-51 for series 51/53 is grey.
• Does this kit include the O-ring? Yes, it includes the essential Tetraseal O-ring required to seal the cartridge to the feeder body.
• Can this be used on both mechanical and electric feeders? Yes, it is compatible with electric water feeders like the 101A and combination mechanical feeders/LWCOs like the 47-2.

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.