Fluid Control Systems Selected product range

352Proportional Valves 2821/6022/23• Valve for continuous control2821/6022/23• Low hysteresis, high repeatability• Control with PWM signal• Direct-acting, tight closing valvesType 2821 can be combined with...Type 6022/23 can be combined with...Proportional Valves/Mass Flow Controllers and MetersType 2506Cable plugType 1094Control electronicsDIN-rail mountingversionThese direct-acting proportional valves can be usedas the control element for flow control, and arealso suitable for use under technical vacuum. Lowhysteresis, high repeatability and good responsesensitivity guarantee a good positioning behaviour.Thanks to an elastomeric sealing, the valve closestightly and securely.Type 2508Type 1094Type 862X-2Cable plugControl electronics Plug-on controllerin a plug-on moduleTechnical dataOrificeDN 0.8 - 6.0 mmPort connection G 1/8, G 1/4, G 3/8Body materialBrass, stainless steel on requestSeal materialFKM, others on requestMediaNeutral gases and liquidsMedia temperature-10 to +90 °C (14 to 194 °F)Ambient temperature Max. +55 °C (131 °F)ViscosityMax. 21 mm 2 /s (cSt.)ControlPWM signal, for compatible electronics, see AccessoriesOperating voltage24 V DCPower consumptionSee ordering chartProtection class valve IP 65Electrical connection Tag connector according to DIN EN 175301-803(previously DIN 43650) Form B (Type 2821) and Form AControl behaviourHysteresis < 5%Repeatability< 0.5% FSSensitivity< 0.5% FSSpan 1:25 (2821, 6022); 1:10 (6023)Required control unitType 1094 (page 360)Control electronics in a plug-on moduleoror with DIN-rail mountingTypes 8623-2, 8624-2, Plug-on Controller with display,8625-2 Set and actual value input, for direct mountingonto proportional valves Type 6022 and Type 6023Subject to modifications