EPC – Varibell
About us
EPC – Equipment for Power Plants and Chemical Industry was founded in Austria in 1993 and offers solutions in the field of control valves and especially our in-house designed, developed and assembled Varibell®.
Products
Varibell® – The Unique Control Valve
Varibell® is an innovative quarter turn rotary control valve with an excellent turndown ratio of up to 1:10 000. The significant advantages of Varibell®: + High turndown ratio of up to 1:10 000 + Two-stage pressure reduction + Very high nominal size related flow rates + Minimal pressure losses + Applicable for liquid, gaseous, high viscose and polluted media + Clogging-reducing design + Temperature ranges from -200°C to +350°C possible + Simple maintenance – even without removal from the pipe system + All quarter-turn actuators in accordance with ISO 5211 can be mounted + Alternative to split range systems + Alternative to control valves with too small flow rates + Seamless quality control through individual testing of each valve + Customer-specific sizing and design of all valves
Varibell® – Areas of Application
The Varibell® control valve is suitable for different process medias and has a wide range of applications. Process Media: It can be used for liquid and gaseous media such as technical gases, steam or condensate, and due to its special design also for highly contaminated or viscous media. Aeras of Application: Due to their special design, Varibell® control valves are suitable for many different applications, including: + Chemical industry + Pharmaceutical industry + Petrochemical industry + Plant engineering and construction + Biogas plants + Burner technology + Test bench construction + Paper and pulp industry + Iron and steel industry + Maritime applications + Power plants and district heating
Varibell® – High-Resolution Servo Drive System
Varibell® is an innovative quarter turn rotary control valve. By using high-resolution servo drives it is possible to make optimum use of the high turndown ratio of up to 1:10 000. This unique actuation system combines state-of-the-art servo motors with extremely low-backlash gearboxes for positioning accuracy of up to 1 arcmin. This makes it possible to resolve the 90° swivel movement in up to 5 400 steps. Together with a maximum speed of more than 90 °/s, this results in unrivaled control quality. Special drive solutions can also be used partly outdoors in harsh temperature conditions and in various potentially explosive areas. For detailed information on the available drive solutions, approvals and deviating Ex conditions, please contact us