Full Welded Flanged Ball Valve For Heating System

1. Structure and characteristics
● Fully welded valve body: The valve body adopts an integral welding process (no bolted connection), which eliminates the risk of leakage, high strength, strong pressure resistance, and is suitable for high-pressure and high-temperature environments.

● Flange connection: flanges are provided at both ends, which is convenient for joining with pipeline flanges, stable installation and good sealing.

● Ball design: The ball is floating or fixed (selected according to pressure), and the surface is often coated with hard chrome or sprayed with wear-resistant materials to ensure sealing and wear resistance.

● Sealing material: The valve seat is made of PTFE (polytetrafluoroethylene), metal seal or composite material, which is resistant to high temperature (up to 200°C) and corrosion.

● Working mode: manual (handle/reducer), electric or pneumatic drive to meet different control requirements.

2. Applicable scenarios
● Central heating system: city heating network, communal heating main pipeline.

● High temperature hot water/steam pipeline: boiler inlet and outlet, heat exchange station, regional heating system.

● High-pressure medium: The design pressure is usually PN16-PN40 (or higher), which allows you to adapt to the fluctuations of the heat network.

3. Main advantages
● Zero leakage: The welded structure eliminates external leakage, and the valve seat seal ensures that the internal leakage rate reaches ANSI VI.

● Long Service Life: Corrosion and erosion resistance, the service life can reach more than 20 years.

● Easy to maintain: Some models are designed for online maintenance, and seals can be replaced without disassembling the valve.

● Adaptability to low temperatures: Some models can be extended for low-temperature heating (e.g. underfloor heating systems).