Selection Guide

    Widely used in petrochemical, water treatment, energy gas and industrial fluid transmission pipeline systems, ball valves are among the most popular pipeline control valves worldwide. They feature simple structure, fast opening & closing, low flow resistance and excellent sealing performance.

    When selecting ball valves, the core distinction lies between metal-seated and soft-seated types, which is a key concern for engineers and purchasers. They differ greatly in sealing principle, material structure, applicable media, working conditions, service life and cost. Wrong selection will easily cause leakage, jamming and seal damage, raising maintenance costs and delaying project progress.

    As a professional manufacturer and exporter dedicated to high-quality valves, Bolaisi Valve summarizes practical selection tips based on rich industry experience, providing accurate references for global buyers.

Metal-Seated Ball Valve

Both ball and seat are made of full metal materials such as WCB carbon steel, 304 stainless steel and 316L stainless steel. Sealing is realized by precise lapping of metal surfaces without any soft parts. It features high temperature resistance, high pressure resistance, wear resistance, aging resistance and corrosion resistance, suitable for severe and complex heavy-duty industrial working conditions.

Soft-Seated Ball Valve

The valve seat adopts flexible polymer materials including PTFE, nylon, rubber and PEEK. Tight sealing is achieved by elastic deformation of soft materials, achieving bubble-tight shutoff. It boasts superior tight sealing, low operating torque and cost-effectiveness with lower processing requirements, ideal for general service conditions.

Quick Selection Rules

· Choose soft-seated ball valves for normal temperature & pressure, clean medium, water supply and light industry projects. Advantages: zero leakage, cost-effective and easy installation.

· Choose metal-seated ball valves for high temperature, high pressure, particle-containing medium, strong corrosive medium, petrochemical and heavy industry projects. Advantages: stable performance and long service life in harsh environments.

· Prioritize metal-seated ball valves for long-term continuous operation, overseas large-scale projects and high-standard industrial supporting projects to cut later replacement and maintenance costs.With years of experience in valve manufacturing, Bolaisi Valve supplies a full range of ball valves with complete specifications and strict quality control.

    We can customize professional selection solutions according to your actual medium, temperature, pressure and pipeline parameters, offering cost-effective reliable valves and one-stop procurement services.