VALGEN Trunnion Mounted Ball Valve
Trunnion-type ball valves operate with a shaft that provides a second rotation center support for the ball independently of the working system inside. Additionally, there is a spring arrangement that continuously maintains pressure on the seat ring. This application ensures complete sealing at low or high fluid pressures in the pipeline.
Simultaneously, the second support shaft attached under the ball minimizes the pressure created by high flow pressure in the closed position, preventing axis deviation. It relieves the first drive shaft on top of the valve, allowing smooth opening and closing of the ball around the central axis.
This system supports the long-term operation of the valve and ensures reliability in terms of sealing.
Producing from solid materials not only provides the opportunity to choose the material quality, but also is the definitive solution against body cracks in jobs requiring high pressure and temperature.
All our productions and designs are designed in accordance with American Petroleum Institute (API) test standards and ISO 10497 fire regulations. All our productions comply with ASME standard pipeline pressure vessels and testing regulations and cover the following standards and tests.
API 6D High-Pressure Tightness Test specifically addresses valves manufactured for oil and natural gas pipelines (Complies)
Complies with ASME B31.1 Power Piping standard
Complies with ASME B31.2 Fuel Gas Pipeline standard
Complies with ASME B31.3 Process Pipeline standard
Complies with ASME B31.4 Standard (for Liquid Transport Lines for Hydrocarbons, Liquid Petroleum Gas, Anhydrous Ammonia, and Alcohols)
Complies with ASME B31.5 Refrigeration Piping Line standard
Complies with ASME B31.8 Standard (for Gas Transmission and Distribution Piping Lines)
Complies with ASME B31.11 Sludge Transport Pipeline standard
Durability and Material Structure Production Features
Manufactured entirely from solid materials (4140/A105/304/316/309), and there is also an option to choose a different body material according to customer requests or flow pressure type.
ISO 5211 Top Flange and Shaft Standard for actuator connection
Stainless steel ball produced entirely from solid material
Spring-supported seats that continuously apply pressure to the ball
Second shaft supporting the ball from below
Double-layer paint on carbon steel bodies
Fire safety test standard, Anti-static grounding
DIN and ANSI standard body dimensions and flange sizes
Extended shaft turning mechanism (optional)
Bronze and PTFE double bearings and lubrication greases on the shaft
External ball lubrication greases on the body (in both directions)
Powerful design ensuring 100% tightness at low and high line pressures
Metal seat design meets the temperature range of -50°F to 550°F (-45°C to 287°C) and acceptance (optional)
Ability to operate and use in high-pressure and high-temperature conditions
Ability to operate in extremely corrosive environments
Ability to operate and use in flows such as oil, natural gas, liquid gas, hydrocarbons, liquid petroleum gas, all solid flows, and mine mud at high pressure and high temperature.
8" ANSI 900 Trunnion Mounted Ball Valve Manufacturing Work
6" ANSI 300 Trunnion MOUNTED BALL VALVE MANUFACTURING WORK
We produce spare parts and repair kits for all valve groups of different types and brands flawlessly on our own CNC machines with 100% domestic production. In addition, with our service quality, we offer the best alternative, price advantage, time saving and perfect maintenance service compared to other companies.