Danfoss 003N4104 WVFX 25 Pressure Operated Cooling Water Regulator Valve

The Danfoss 003N4104 is a pressure-operated cooling water regulator valve designed to maintain constant condensing pressure in refrigeration systems with water-cooled condensers. This direct-actuated WVFX 25 valve provides precise modulating control of cooling water flow, automatically responding to changes in condensing pressure to optimize system performance.

Key Features:

• Control pressure range: 4.0 to 23.0 bar (58 to 334 psi) for high-pressure refrigerant applications
• G 1" (1 inch) internal BSP water connection for secure installation
• 1/4" (6mm) SAE flare refrigerant connection for pressure sensing
• Kv value of 5.5 m³/h flow capacity
• Stainless steel housing suitable for seawater cooling applications
• Operating pressure: Maximum 16 bar working pressure
• Media temperature range: -25°C to +130°C
• Automatic shutoff when refrigeration plant stops

The WVFX series uses a bellows element to transmit condensing pressure impulses directly to the valve cone, enabling rapid response to even minor pressure variations. The valve features a brass plate with vulcanized special rubber for reliable sealing, stainless steel valve seat, and diaphragm external sealing with O-ring reinforcement. The aluminum spring housing includes a graduated indicator (1-15) for easy manual adjustment of the control range.

This valve is ideal for commercial and industrial refrigeration applications requiring precise condensing pressure control, including cold storage facilities, process cooling systems, and marine refrigeration installations where corrosion resistance is essential.