-
Metal Seated Ball Valve
Nortech metal seated ball valves deliver reliable zero-leakage shutoff for high-temperature and severe wear applications up to Class 900, per API 6D. Featuring both floating and trunnion designs (1/2″-36″) with uni- or bi-directional sealing, these hard-faced valves ensure superior durability in abrasive slurries.
-
Fully Welded Ball Valve
Nortech fully welded ball valves offer maintenance-free underground service for high-pressure gas pipelines up to Class 1500, compliant with API 6D. Featuring a forged steel welded body (NPS 6″-40″) with extended stem design, these valves ensure zero external leakage in cross-country transmission lines.
-
Trunnion mounted Ball Valve
High-performance Trunnion Mounted Ball Valves designed to API 6D & ASME B16.34 standards. Features double block and bleed (DBB), low torque, and fire-safe design for high-pressure oil and gas pipelines,ideal for sour service compliant with NACE MR0175.
NORTECH is a leading China trunnion mounted ball valve manufacturer & supplier
-
Top Entry Ball Valve
Top Entry Ball valves,are used in piping systems where the top of the valve can be removed to gain access to the ball and seats without removing the entire valve from the piping system. Top entry ball valves are typically used in process systems where in-line maintenance is preferred over full valve removal.
- NPS:2″-36″
- Pressure rating:Class150-2500lbs
- Body:Cast steel/Forged steel
- Seat:DEVLON/NYLON/PTFE/PPT/PEEK etc
- ASME B16.34,API6D
NORTECH is one of the leading China Top Entry Ball Valve Manufacturer & Supplier.
-
Double Block And Bleed Ball Valve
The Double Block And Bleed Ball Valve,is designed to replace the complex form of multiple valve connections in pipeline.it utilize a twin-valve design. By combining two valves into one body, a twin-valve design reduces weight and potential leaks paths while meeting the OSHA requirements for double block and bleed.
- Size: 1/2 – 16 Inch.
- Pressure: Class 150 LB – 2500 LB.
- Material: Carbon Steel, Stainless Steel, Alloy Steel, etc.
- floating or trunnion mounted,for the purpose of DBB and DIB.
NORTECH is one of the leading China Double Block And Bleed Ball Valve Manufacturer & Supplier.