A21889 | Fill Valve, HC-4500 | Armstrong International

**Armstrong International Fill Valve (A21889)** The Armstrong International Fill Valve (A21889) is engineered to provide precise and reliable water level control in commercial and industrial applications. This heavy-duty valve is designed for use with HC-4500 make-up water systems. Features: * Durable brass construction with reinforced diaphragm for extended lifespan * Adjustable valve setting to accommodate different water pressures and flow rates * Self-contained design minimizes the need for external components * ANSI 125-rated flanges for secure installation and leak prevention * Low-maintenance operation with minimal moving parts Benefits: * Precisely maintains water levels, reducing costly damage from overflow or underfill * Rugged construction ensures reliable performance in demanding environments * Easy installation and adjustment for quick and efficient setup * Compatible with various water temperatures and pressures * Contributes to optimal system operation by providing a consistent water supply Applications: * Commercial boilers and make-up water systems * Industrial process control and fluid handling * Water treatment facilities and chemical processing plants Shop our HVAC supply store for the best prices and fast shipping on Armstrong International products. Trust us for your industrial supply needs.