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The Armstrong International B1669-4 Pressure Change Assembly is a precision-engineered internal component designed to restore the peak performance of your steam system
all-metal seal that resists damage from vibration
Vertical Orientation Option: When installed vertically
Positive Dead-End Lock-Up: Provides a tight seal at zero flow conditions
Carrier 99CC502453 Piston Body 326058-757 The Armstrong International B1669-4 PressureFor contractors servicing Carrier air conditioning and fan coil units, the Carrier 99CC502453 Piston Body is a critical OEM replacement part designed to regulate refrigerant flow with precision. This fixed orifice metering device facilitates the necessary pressure drop for efficient heat exchange, ensuring the evaporator coil receives the correct saturation levels for optimal cooling. Engineered from high grade, corrosion resistant brass, this