About us
Lianwan Technology Industry Co., Ltd. has 45 years of manufacturing experience and specializes in manufacturing: stainless steel hollow valve balls, solid stainless steel balls, stainless steelball valves, Plastic ball valves, shafts, bushings, sleeves, special nuts and food machinery parts, and grinding and polishing of the inner diameter of stainless steel related parts.
The hollow ball is the core component of a ball valve, controlling fluid flow. It has a hollow internal structure with a central channel. When the valve handle is rotated, the channel aligns with the pipe, allowing fluid to flow; rotating 90 degrees stops the flow.
Lianwan manufactures various types of valve balls using materials including:
• WCB • SUS304 • SUS316 • SUS316L • Various customized special materials
.Standard steel ball plungers, sizes: 10mm~12”
.Hollow steel ball plungers, sizes : 2”~12”
.Steel ball plungers with bushing, sizes: 2”~12”
.One-piece-formed hollow steel ball plungers
.Spherical tolerance of fixed and folating steel ball plungers: ±0.05
Used for basic rust prevention, it boasts excellent corrosion resistance, high strength, and wear resistance. It is widely used in industrial control and fluid shut-off applications. Depending on the operating environment and industry standards, major application areas include:
1. ) Oil and Gas Industry: Withstands extreme temperatures and high pressures, and possesses excellent resistance to sulfide stress corrosion cracking.
2. ) Semiconductor and Electronics Industry: Requires special polishing and electrolytic mirror finishing, achieving zero leakage, extremely low roughness, and high cleanliness to prevent particulate contamination.
3. )Food, Beverage, and Pharmaceutical Equipment: Utilizes sanitary grade stainless steel such as 316L, with a smooth, seamless surface that meets FDA standards, preventing bacterial growth and ensuring fluid integrity.
4. )Chemical and Petrochemical Industry: Highly corrosion-resistant, effectively resisting most chemical substances and preventing valve jamming or leakage.
5. )General Industry and Water Treatment: Application scenarios include desalination plants, general domestic water supply and sewage treatment, and steam pipelines.
The ball valves, plug valves, check valves, safety valves, shut-off valves, pressure reducing valves, plastic ball valves, plastic valves, fluid power control products, etc. used in the above-mentioned related industries all use hollow valve balls and shafts manufactured by Lianwan. Lianwan mainly produces valve balls, providing the sizes required by customers, such as floating valve balls, fixed valve balls, hollow valve balls, and solid valve balls. The largest size is 12 inches. Customers are welcome to provide drawings to facilitate the process.
We also provides:
•Solid stainless steel balls: We offer solid stainless steel balls in various styles and sizes for various industrial and commercial applications.
•Hollow stainless steel balls: These are also widely used in related construction, building materials, lighting, and art installations. Whatever customer needs, we can meet them.
Lianwan mainly produces valve balls, providing the sizes required by customers, such as floating valve balls, fixed valve balls, hollow valve balls, and solid valve balls. The largest size is 12 inches. Customers are welcome to provide drawings to facilitate the process.
In addition to valve parts, our company also provides related:
• Shaft machining
• Bushing machining
• Sleeve machining
• Special nut manufacturing
• Food machinery parts
• Internal bore grinding and polishing
• Precision metal machining
• Stainless steel valves
• Valve ball machining
• Special metal machining
• Precision parts manufacturing
• Polishing of seamed/seamless stainless steel pipes
Lianwan, with years of metal processing technology and rich practical experience, provides complete solutions for pipe fittings and special metal parts of various materials, and supports custom-made and customized needs for special materials.
The company consistently adheres to quality, efficiency, and professional service, helping customers improve product stability and processing quality, becoming a long-term trusted partner for many enterprises.
