Technical Specifications
◎ Design Standard: GB/T 37827, etc.
◎ Material: Carbon steel, Stainless steel, Alloy steel.
◎ Nominal Size: DN300~1600
◎ Nominal Pressure: PN16~PN40
◎ Applicable Temperature: -20℃~200℃
◎ Operation Mode: manual, worm, pneumatic, electric, etc.
◎ Scope of Application: Heating systems, district heating, industrial purposes
◎Connection Type: Flanged, Butt Welded
Naishi fully welded ball valve is a high-performance valve featuring a compact structure, excellent sealing capability, and long service life. It is widely used in city gas distribution, district heating systems, petroleum, natural gas, water treatment, and various industrial pipelines. With an all-welded, integral body design, it eliminates the risk of external leakage and allows for direct underground installation, significantly reducing construction and maintenance costs. Manufactured from high-strength materials with precision machining, the valve ensures reliable performance under demanding conditions, making it especially suitable for long-distance pipelines and harsh environments.
Key Features
One-piece welded body ensures zero external leakage.
Compact design with superior aesthetics and long service life (15+ years under normal use).
High-precision ball machining ensures smooth operation and minimal torque.
High-strength sealing structure: RPTFE seats reinforced with 20% carbon for excellent sealing performance.
Excellent pressure and temperature adaptability, with no leakage under rated conditions.
Buried installation capable: requires only shallow valve boxes, reducing construction cost and time.
Customizable stem height and body length to suit pipeline layout.