Forged steel low-temperature ball valves are designed specifically for low-temperature environments and are primarily used for medium control in industrial pipelines such as thermal power plants and chemical industries. Their core features include high temperature and pressure resistance, self-sealing design, and wear resistance.

Applicable Medium and Temperature

Suitable for non-corrosive media such as water and steam, the operating temperature range is typically -40°C to -196°C, with some models capable of withstanding even lower temperatures.

Structure and Design

‌Material: Valve bodies are made of forged steel (such as A352 LF2/F316L), sealed surfaces are surfacing welded with hard alloys (like Stellite), hardness exceeds HRC60, and are wear and low-temperature erosion resistant.‌

Sealing Technology: Utilizes bellows seal and split floating gate design to minimize low-temperature leakage risks, with enhanced sealing reliability as pressure increases.

Low Temperature Compatibility: Extended neck design of valve cover reduces heat transfer, optimized gate guide structure reduces friction, and avoids brittle fracture damage at low temperatures.

Pressure Grades and Standards

Pressure ratings range from 1.6MPa to 14.0MPa (150LB-800LB), compliant with international standards such as API 602, MSS-SP-118, and inspections and tests are conducted according to API 598 specifications.

Application Scenario

Primarily used for cutoff control of low-temperature mediums in power plant systems, petrochemicals, LNG receiving stations, and offshore platforms.