Home / Product / 手动阀门 / Forged Steel Trunnion Mounted DBB Ball Valve, DN25–DN1400, ASME Class 150–2500, Double Flanged | DELCO

Catalog: 手动球阀

Forged Steel Trunnion Mounted DBB Ball Valve, DN25–DN1400, ASME Class 150–2500, Double Flanged | DELCO

DELCO Forged Steel Trunnion Mounted DBB (Double Block and Bleed) Ball Valve is designed for high-pressure line isolation where seal verification and safe depressurization are required. The double block function isolates upstream and downstream, while the bleed port allows cavity venting and leakage check during maintenance. It covers DN25–DN1400 with ASME Class 150–2500 pressure rating, supplied with double-flanged ends to match GB/ANSI/DIN/JIS piping standards. Typical applications include oil & gas, pipeline, refining, and chemical process services.

Size Range:DN25-DN1400 ASME ClaSS:ASME 150~2500

LBAPI Standard:API 2000~15000

Connection Standard:GB / ANSl/DIN /JIS

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Features

DBB isolation with a bleed function enables safer maintenance and clearer sealing verification for high-pressure pipeline services.

✅Double Block & Bleed Function: Provides upstream/downstream isolation with a cavity bleed port for venting and leakage verification.

✅Trunnion Mounted for Large Sizes: Fixed ball structure helps reduce operating torque and improves stability in larger DN and higher pressure duties.

✅Forged Steel Body for High-Pressure Service: Forged construction is commonly selected for demanding pressure, impact, and cyclic conditions.

✅Wide Size & Pressure Coverage: DN25–DN1400 and ASME Class 150–2500 support a broad range of pipeline and station applications.

✅Double Flanged Ends with Multi-Standard Compatibility: Flanged ends can be supplied to match GB / ANSI / DIN / JIS project requirements.

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Key Application Fields

Oil & Gas

DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines.
Chemical & Petrochemical

DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely.
Power Generation

DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants.
Food & Pharmaceutical

DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity.
Water & Wastewater

Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability.
HVAC & District Heating

DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.