Visval - a Swiss company with 20 years' experience in the production of innovative SoliValve® two-part conical valves for the very safe handling of bulk materials and powders with a high dust content. SoliValve® is the answer to the limitations of all conventional docking and transfer systems currently available on the market. Dust-tight discharging or dosing from big-bags, container, single-use packaging and other. SoliValve®100: Handling of micro and secondary ingredients such as food additives, active ingredients and chemicals with maximum safety, automation and dosing accuracy. Containment up to OEB5. Dosing accuracy ±1g, SoliValve®250: Safe discharging or dosing of critical substances with a high dust content Big-bag partial discharging is possible without any problems. Ideally suited for food and foodstuffs, pharmaceuticals, chemical substances, metal powder, etc. Containment up to OEB4. Dosing accuracy ±50g.