Schneider Electric VK-7313-203-4-9 Three-Way Mixing Valve 1-1/4" NPT 20CV Pneumatic Actuator

The Schneider Electric VK-7313-203-4-9 is a three-way mixing valve assembly designed for control of hot or chilled water in heating and air conditioning systems. This factory-assembled unit combines a VB-7313 series bronze body globe valve with an MK-2690 pneumatic actuator, providing reliable proportional control for HVAC applications.

Key Specifications:

• Port Size: 1-1/4 inch NPT threaded connections
• Flow Coefficient: 20 CV for efficient water flow
• Actuator: MK-2690 pneumatic actuator with 8-13 PSI spring range
• Configuration: Three-way mixing valve with two inlets (A and B ports) and one outlet (AB port)
• Maximum Working Pressure: 150 PSI
• Maximum Temperature: 250°F
• Body Material: Bronze with brass trim
• Action: Spring return, normally closed

Advanced Features:

• Patented precision plug design for high rangeability, providing efficient heat transfer over a broad range of HVAC applications
• Venta seal design provides tight close-off to ensure energy efficiency and high tolerance to differential pressures
• Exceptional rangeability exceeding 500:1 for precise control
• High differential-pressure rating of up to 87 PSI for reliable operation
• Suitable for two-position, floating or proportional control applications

This mixing valve must be piped with two inlets and one outlet, making it ideal for temperature control applications where two water sources are blended. The pneumatic actuator operates on 8-13 PSI air pressure, providing smooth modulating control. This RoHS compliant product meets ANSI, PED, CRN and other industry standards.