KMC Controls VCZ-4102BMBD Valve

The KMC Controls VCZ-4102BMBD is a high-performance 1/2" N/O 2-Way zone valve engineered for precise fluid management in commercial HVAC systems. As a pneumatic globe control valve, this unit is optimized for regulating hot or chilled water flow in terminal units like reheat coils, fan coils, and radiators. With a 2.5 Cv flow coefficient and a 3-8 PSI pressure range, it provides reliable throttling and shut-off in a compact footprint, making it the standard choice for tight cabinet installations. The normally open (N/O) configuration ensures a fail-safe position for uninterrupted heating or cooling during control air loss. Built for the field, the rugged actuator features a glass-filled nylon housing and a durable neoprene diaphragm. The FNPT connection simplifies integration into standard piping, while its linear flow characteristic ensures stable performance across its operating temperature range of 40??F to 180??F.

Key Benefits

• Compact Pneumatic Design: Engineered specifically for VAV terminal unit enclosures where space is at a premium.
• Field Serviceability: Features a field-replaceable actuator that can be swapped without tools, reducing maintenance downtime.
• Precise Modulation: The 3-8 PSI actuator delivers accurate response to pneumatic control signals for stable temperature regulation.
• Industrial Durability: Constructed with a robust brass body and stainless steel trim to resist corrosion in high-cycle hydronic applications.

Common Questions

• What is the fail-safe position for the VCZ-4102BMBD? This model is Normally Open (N/O), meaning it stays open when pneumatic pressure is removed.
• Can I use this for glycol-based systems? Yes, the KMC VCZ-4102BMBD is rated for hot or chilled water containing up to 50% glycol.
• What is the maximum inlet pressure? This 2-way pneumatic valve is rated for a maximum inlet pressure of 125 PSI.

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.