Control valve Siemens VXF22.50-40

Siemens VXF22.50-40 three-way control valve — flanged valve PN6 for medium and large HVAC systems. Efficient flow control in heating and cooling. Siemens VXF22.50-40 is a reliable 3-way seat control valve (mixing/diverting) with flanged connection, designed for heating, ventilation, air conditioning and cooling systems. With nominal diameter DN50 and high flow capacity Kvs 40 m³/h, it is ideal for heating substations, boiler rooms, chillers, fan coil systems, ventilation units and medium-power hydraulic circuits. German quality Siemens Acvatix series ensures precise control, high tightness and long service life even under intensive operating conditions. Main technical specifications: Valve type: 3-way seat (mixing/diverting); Nominal diameter: DN50; Flow capacity: Kvs 40 m³/h; Working pressure: PN6 (up to 6 bar); Medium temperature: -10°C to +130°C; Connection: flanged according to ISO 7005; Body material: high-strength grey cast iron EN-GJL-250; Stroke: 20 mm; Control characteristic: equal percentage (straight-through), linear (bypass); Leakage: 0…0.02% of Kvs (main port), 0.5…2% (bypass); Application: closed circuits with water, water-glycol solutions and brines. Perfectly compatible with Siemens SAX, SKD, SKB series actuators and others with 20 mm stroke. Advantages of Siemens VXF22.50-40: High performance — large Kvs allows efficient work with significant flow rates. Excellent tightness — minimal leakage ensures energy efficiency and system safety. Durability — robust cast iron body resistant to corrosion and mechanical stress. Versatility — suitable for mixing and diverting.