A fixed forged steel ball valve is a ball valve with a fixed ball structure manufactured from forged steel, primarily used in high-pressure and corrosive medium conveying pipelines, featuring bidirectional sealing and strong pressure resistance.

Structural Features

Sealed Design: Utilizes a bidirectional double-valve seat structure with spring-preloaded seat components, which generate a self-tightening effect under medium pressure, ensuring bidirectional sealing upstream and downstream.

‌Body Structure: Available in two-piece and three-piece configurations, the middle flange bolt connection utilizes reinforced polytetrafluoroethylene stainless steel composite seals to enhance sealing performance.‌

‌Fire-Resistant Design: Certain models are equipped with fire-resistant structures, compliant with API 607, API 6FA, and other standards, capable of preventing medium leakage caused by fires.‌

Performance Parameters

‌Operating Temperature: Standard range is -196℃ to 350℃, suitable for low to high-temperature conditions.‌

Nominal Pipe Size: Covers DN25 to 800 (some models up to DN1200), full-bore design for easy pipeline cleaning operations.

Pressure Ratings: Covers standard classes from 150 to 2500 (as of 2024), accommodating various pressure requirements.

Applicable scenarios

‌Industry Applications: Suitable for long-distance pipelines with hydrogen sulfide-containing media, high impurities, or severe corrosion, such as in the chemical, petroleum, natural gas, and metallurgy industries.‌

Safety Design: Equipped with an automatic pressure relief valve and exhaust pipeline system to prevent abnormal pressure buildup; static-dissipative structure to avoid sparks during operation.