ATV supplies a full range of Top Entry Ball Valves, trunnion mounted, for topside applications in the Oil &Gas exploration, production and transmission.

ATV top entry ball valve is the most suitable for severe service conditions, where ease of in-line maintenance may be a concern: the top entry design with bolted bonnet allows free access to the body cavity without removing the valve from the line, even if the space around the valve is restricted. ATV has developed a set of special tools that permits to easily take out both ball and seats, even when the valve is installed on vertical line.

ATV supplies top entry ball valves in a wide range of materials and configurations to meet any specific need of the application and customer’s requirements. Cast body construction is particularly suitable to allow an optimization of the weight due to the typical shape of the body, specially on the biggest sizes, whereas a forge body is the preferred choice for the high pressures. Typically, soft-seated configuration is available for clean service whereas metal-to-metal sealing is the preferred choice for the highest reliability in harsh service with the presence of solid particles, high pressure and high temperature. Many optional features are available for seat designs, seat and stem seals, and end connections. 

Materials are sourced from qualified suppliers on the base of specifications that reflect the industry standards (ASTM, NORSOK, BS, DIN or others), but do also incorporate additional requisitions resulting from long experience.  

ATV designs, manufactures and tests its products in accordance with all the relevant Industry standards and codes (API, ANSI, ASME, BS, ISO, NACE, PED and others). ATV ball valves are manufactured to conform to API 6A product specification level PSL 3/3G and pressure tested to either API 6A or API 6D requirements.

ATV stresses its willingness to produce engineered valves; therefore, it welcomes requests for special size, class and design requirements.