Welded Ball Valve

Welded ball valves are usually made from carbon steel or stainless steel plates. Under normal use, the valve can easily last over 20 years.
Specific Applications
Natural gas transmission lines, city heating networks, petrochemical and oil & gas pipelines, steel mills, and industrial fluid systems. Welded ball valves are also suitable for underground burial without large valve pits.
Key Features
Heavy‑Duty Welded Construction – BW (butt weld) ball valves with carbon steel or stainless steel bodies. This welded ball valve features a fully welded design that eliminates flange leaks, reduces weight, and withstands pipeline stress. Under normal use, valve life exceeds 20 years.
Zero Leakage & Fire‑Safe – Carbon‑filled PTFE seat with disc springs ensures bubble‑tight shut‑off across wide pressure‑temperature ranges. Anti‑static design (API 607/6FA fire‑safe) and multiple stem seals prevent external leaks and spark hazards.
Ideal for Buried Pipelines – As a welded ball valve, it is perfect for natural gas transmission lines, city heating networks, petrochemical and oil & gas pipelines, steel mills, and industrial fluid systems. Direct burial eliminates large valve pits – saving construction time and cost.
Flexible Actuation & Body Styles – Lever, worm gear, pneumatic, or electric actuator. Choose one‑piece, two‑piece, or three‑piece body – inline maintenance without removing the whole valve.
Fully Customizable – Body materials: carbon steel, stainless steel, alloy steel. Seals: PTFE, PPL, nylon, or hard alloy for high‑temperature / abrasive media. End connections: butt weld or socket weld to DIN, ANSI, JIS, or GB.
Quality Certification
We hold ISO 9001, ISO 14001, and ISO 45001 certifications, plus a special equipment production license (TS). Our products are made to API, ANSI, JIS, ISO, BS, JB, and GB standards. This covers material checks, non‑destructive testing, precise measurements, and valve strength/sealing performance.
Custom Manufacturing Services
You send us a drawing or sample, and we review the requirements. Then we confirm the drawing and give you a quote — faster if you provide a 3D model. After order confirmation, we schedule batch production.