Danfoss 193B-1506 ESBE VRG130 3-Way Mixing Valve 1-1/2" FNPT 29.3 Cv DZR Brass

The Danfoss 193B-1506 is a professional-grade 3-way mixing valve from the ESBE VRG130 series, designed for precise temperature control in hydronic heating and cooling systems. This compact, low-leakage valve features dezincification-resistant (DZR) brass construction for exceptional durability and corrosion resistance in demanding applications.

Key Features:

• 1-1/2" female NPT (FNPT) threaded connections for easy installation
• Flow coefficient (Cv) of 29.3 for optimal flow performance
• DZR brass body and abrasion-resistant brass slide for long service life
• 90-degree operational angle with non-slip manual control knob and end stops
• Exceptionally low leakage rate: less than 0.05% for mixing, less than 0.02% for diverting
• Rotary design allows flexible field piping configurations
• Visible position indicator scale that can be rotated for various mounting orientations
• Compatible with ESBE ARA600 and Series 90 electronic motorized actuators for automated control

Technical Specifications:

• Pressure class: PN 10 (10 bar / 145 PSI maximum working pressure)
• Media temperature range: -10°C to +110°C continuous, +130°C temporary
• Maximum differential pressure: 100 kPa (1 bar) for mixing, 200 kPa (2 bar) for diverting
• Close-off pressure: 200 kPa (2 bar)
• Torque requirement: Less than 3 Nm at nominal pressure
• Suitable for water-based systems with up to 50% glycol content

The VRG130 series replaces the older MG and G series valves, offering enhanced operational features and improved performance. Ideal for applications including radiant floor heating, snow melt systems, boiler protection, zone control, and commercial HVAC installations where precise water temperature regulation is critical. The valve can be operated manually or paired with electronic actuators and controllers for automated temperature control in complex hydronic systems.