These single seated valves are used for modulating control of hot or chilled water or steam in heating, ventilating, and air conditioning systems and can be operated by electric linear actuators as ML6420/25 or ML7420/25 and M6421, M7421, or by pneumatic actuators MP953.

• Cast iron or cast steel body with flanged end connections
• Low seat leakage rate
• Metal-to-metal seating for long life span
• Self-adjusting packing
• Accurate positioning to ensure state-of the-art temperature control
• Direct-coupled electric and pneumatic actuators for easy mounting
• 50:1 rangeability per VDI/VDE 2173