Standardized Fit: 1/2" NPT connections allow for straightforward mechanical installation in tight service cabinets

Universal Compatibility: Rated for a maximum working pressure of 650 psi and compatible with all major refrigerant lubricants

Heavy-Duty Construction: The steel inducer wheel material offers superior resistance to thermal stress and corrosive flue condensates compared to plastic variants

readings outside this range indicate the need for replacement

Johnson Controls VB-3966-1 Valve Body 30067439-890 Standardized Fit: 1/2" NPT connectionsThe Johnson Controls VB 3966 1 is a robust 1 2 inch flare valve body engineered for precise control in HVAC hydronic systems. Designed for hot and cold water service, this two way valve features a Push Down to Open (PDTO) action and a 1. 7 Cv flow coefficient, making it ideal for terminal units like fan coils and reheat coils. The equal percentage flow characteristic ensures stable control throughout the stroke, compensating for the non linear heat