Ari Armaturen ARI Stevi – Control Valve ARI-STEVI® Pneumatic ActuatorReversible pneumatic actuatorActuator with rolling diaphragmAir supply pressure max. 6 barStem protection by bellowMaintenance-free O-ring sealingAssembly of additional devicesFeatures:Compact designPrecision guided stemBurnished stemTapered seat ringRangeability 50 : 1Spring loaded PTFE-V ring packing unitTwo-ply bellows seal as standardTravel indicator Quantity Add to Cart Add to Cart You may also like Previous Next Ari Armaturen ARI Zetrix – Process Valve Ari Armaturen ARI Temptrol – Temperature Reglator Ari Armaturen ARI Stevi BBD – Bottom Blowdown Valve