ATV offers a full range of Rising Stem Ball Valves mainly suitable for gas processing, such as for high temperature and cycling service, on molecular sieves and dehydrating units in gas treatment, isomerization units and other processing plants.

Rising Stem Ball Valves are the most suitable for these severe service applications requiring the highest reliability because the sealing surfaces do not contact during stroking with the benefit of long life without maintenance. Peculiarity of ATV Rising Stem Ball Valve is that when the ball is in close position, the tight sealing between the ball and the single fixed seat is granted in both directions. Rising Stem Ball Valves can be operated with manual gear or with electric, pneumatic or hydraulic actuators. 

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 rising stem ball valves are pressure tested to API 6D requirements.

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