A fixed forged steel ball valve is a ball valve with a fixed ball structure made of forged steel material, primarily used in high-pressure and corrosive medium conveying pipelines. It features bidirectional sealing and strong pressure resistance.

Structural Features

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

‌Valve Body Structure: Available in two-piece and three-piece configurations. The middle flange bolt connection employs reinforced polytetrafluoroethylene stainless steel composite sealing rings for enhanced sealing performance.‌

‌Fireproof 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 of -196°C to 350°C, suitable for both low and high-temperature conditions.‌

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

Pressure Class: Covers standards from Class 150 to 2500 (up to 2024), accommodating various pressure requirements.

Applicable scenarios

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

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