Schneider Electric Valve Actuator Assemblies

Overview

The SCHNEIDER ELECTRIC VK-7211-201-3-2 is a 2-way, normally open pneumatic globe valve assembly designed for hydronic and process control applications in commercial HVAC and building automation systems. The assembly integrates a bronze body globe valve with brass trim and a spring return pneumatic actuator, providing reliable, fail-open control of water or compatible fluid flow. Key specifications include a 1/2-inch union angle end connection, a flow coefficient (Cv) of 1.3, and an equal percentage flow characteristic that provides stable modulating control across a wide range of system pressures. Licensed HVAC controls technicians and mechanical contractors are the primary installers of this assembly. This valve assembly is suited for terminal unit control in commercial and light industrial HVAC systems, including fan coil units, unit ventilators, and similar hydronic applications requiring modulating two-way flow control. The union angle body configuration simplifies field installation and service access. The spring return actuator ensures the valve returns to the normally open position on loss of pneumatic signal, supporting fail-safe system design. The 3-7 psi spring range is compatible with standard pneumatic control branch lines common in existing DDC-pneumatic hybrid and legacy pneumatic control systems. Key Features 2-way normally open configuration provides fail-safe open operation on loss of pneumatic signal Equal percentage flow characteristic delivers stable…