McDonnell & Miller 847 Water Feeder

The McDonnell & Miller 847 Make-Up Water Feeder (Part Number 134300) is a mechanical float-operated valve engineered specifically for boiler receiver tanks. Designed to maintain precise liquid levels, this mounting flange water feeder is rated for a maximum water supply pressure of 100 psi and a maximum vessel pressure of 25 psi. The Series 847 utilizes a high-capacity feed mechanism to ensure consistent makeup water delivery, preventing dry-run conditions in condensate return systems. Its robust construction and float-operated valve design facilitate reliable boiler feed tank level control, even in demanding commercial HVACR environments. For contractors handling industrial water feeder installation, this model provides a direct-mount solution that minimizes complex piping. Leveraging a McDonnell & Miller 134300 ensures system stability by compensating for fluid loss throughout the steam cycle, maintaining the thermal equilibrium necessary for efficient boiler operation.

• Engineered for Receiver Tanks: Specifically calibrated for non-potable makeup water applications in steam systems.
• Proportional Feed Design: Large flow capacity allows for rapid recovery of water levels during peak condensate demand.
• Durable Flange Mounting: Simplifies the integration process onto existing receiver tanks with a secure, leak-resistant connection.
• High Pressure Tolerance: Handles incoming water supply pressures up to 100 psi while maintaining a 25 psi vessel rating.

Common Questions Regarding the Series 847

What is the maximum operating pressure for the McDonnell & Miller 847?
The unit is rated for a maximum vessel pressure of 25 psi, though it can handle incoming water supply lines pressurized up to 100 psi.

Can this feeder be used on a low-pressure steam boiler directly?
No, the Series 847 is designed for installation on receiver tanks and boiler feed units, not for direct mounting on the boiler shell itself.

Does this model include a mounting flange?
Yes, the 134300 part number includes the integrated mounting flange required for standard receiver tank installations.

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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.