Home / Product / Manual Operated Valve / 
Trunnion Mounted Flanged Ball Valve with Worm Gear (DN50–DN1400, ASME Class 150–2500) | DELCO
DELCO Trunnion Mounted Flanged Ball Valve with Worm Gear is a general-purpose isolation valve for pipeline and station service. The trunnion-supported ball design improves operating stability on larger diameters, while the worm gear operator provides controlled, safer manual operation where higher torque is expected. It is available in DN50–DN1400 with ASME Class 150–2500 pressure rating, and flanged ends can be supplied to match GB/ANSI/DIN/JIS project standards.
Size Range:DN50-DN1400 ASME Cla55:ASME 150~2500LB
API Standard: API 2000~15000
Connection Standard: GB/ ANSl/DIN /JIS
Features
A robust trunnion-mounted valve designed for stable isolation across wide sizes, with worm gear control for high-torque manual operation.
✅Trunnion Mounted Stability: Fixed-ball support helps maintain stable sealing performance and smooth operation on larger sizes.
✅Worm Gear for Controlled Operation: Gear-driven handwheel reduces operator effort and provides finer control during opening/closing.
✅Flanged Ends for Pipeline Integration: Flanged connection supports secure installation and maintenance-friendly removal in stations and plants.
✅Wide Size & Pressure Coverage: DN50–DN1400 and ASME Class 150–2500 meet common pipeline and process isolation requirements.
✅Project Standard Adaptability: Can be supplied to match GB / ANSI / DIN / JIS flange standards and project specifications.
Photo
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.
Browse our case studies or talk directly with our engineers to discuss your application.
Send Your Inquiry
Not sure which valve fits your project? Our engineers provide fast selection support and OEM customization.
For a faster and more precise quotation, kindly include details such as:
- The model or features you are looking for
- Your estimated purchase quantity
- Any OEM / branding requirements
- Target market or application
