Armstrong International B4481 Valve Assembly

The Armstrong International B4481 Valve Assembly is a specialized OEM humidifier replacement part designed for high-performance moisture control in commercial and industrial settings. This fill valve assembly less flow washer is engineered specifically for use in EHU-704 and EHU-602 electronic steam humidifiers, ensuring precise water level management within the steam generator tank. By facilitating the controlled entry of tap water to the electrodes, the Armstrong B4481 enables consistent steam production and modulation based on humidistat demand.

As a critical component of the EHU-700 series humidifier maintenance, this assembly features a 3/8-inch compression connection and is built for durability under standard operating pressures of 25 to 125 psig. Replacing a worn steam humidifier fill valve is essential for preventing leaks in the drain pan and avoiding system downtime. Designed to work without a flow washer, this authentic Armstrong humidifier part ensures your electronic steam generator maintains the exact amperage required for optimal humidity distribution across your HVAC system.

Key Benefits:

• Precision Water Control: Ensures accurate filling of the steam generator tank for stable electrode contact and steam output.
• Seamless Compatibility: Explicitly designed for Armstrong EHU-602 and EHU-704 models, ensuring a perfect fit and reliable operation.
• Industrial Durability: Constructed to withstand the rigorous cycles of commercial steam humidification systems.
• Simplified Maintenance: Facilitates quick replacement to restore unit efficiency and prevent moisture-related system errors.

Common Questions:

Does this assembly include the flow washer?
No, the B4481 is a fill valve assembly less flow washer. If your installation requires a flow washer, please verify the specific requirements for your EHU model.

Which humidifier models use the B4481?
This valve is primarily used on the Armstrong EHU-704 and EHU-602 series electronic steam humidifiers.

What are the signs that my fill valve needs replacement?
Common indicators include the humidifier failing to fill, erratic steam production, or visible leaks near the water inlet area.

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.

This item is not eligible for free shipping.