Precise Balancing: Supports pre-setting of flow rates to ensure even heat distribution across all zones in multi-unit buildings
This kit provides a 9 to 13 PSI spring range
System Efficiency: Restores the valve's tight-close capability
Precision Control: Allows for safe delivery of zero gas
it features 2:4V spade terminals for a secure
Armstrong International B1669-1 Pressure Change Assembly 30067439-890 Precise Balancing: Supports pre-setting ofThe Armstrong International B1669 1 Pressure Change Assembly (PCA) is a critical steam trap repair kit engineered specifically for inverted bucket traps. This assembly includes a matched 1 4" orifice, valve seat, and lever mechanism, providing a direct drop in solution for maintaining trap efficiency. Designed for Armstrong 811, 211, 310, TVS 811, 881, 981, and EM series traps, this PCA is calibrated for a 15 PSI maximum operating pressure. Utilizing