Description for Barber Colman VB-7221-0-4-02
VB-7221 series single seat, stem up closed, two-way valves control water from 20 to 281F (-7 to 138C) or steam to 281F (138C) maximum in heating or air conditioning systems. They are used for two-position or proportional control applications. Valve assemblies require an actuator and a valve linkage that must be purchased separately.