SCHAKO VREX ATEX Volumetric Flow Controller

SCHAKO VREX ATEX Volumetric Flow Controller is a round volumetric flow controller made of galvanized steel. Suitable for use with aggressive components of polluted air and specially designed for use in areas subject to explosion hazards. Approved for all gases in zones 1, 2 and for dusts in zones 21, 22 with ATEX approval. Can also be used in zones 1 and 2 of explosion group IIC. This comprehensive approval guarantees safe operation even in most hazardous industrial environments. Used for pressure-independent volumetric flow regulation in ventilation and air-conditioning systems. Serves to keep volumetric flow either constant within specified limits (CAV) or to control it variably (VAV). Provides closed control loop with feedback. Housing, measuring sensor, control flap, PID controller with pressure sensor and actuator form a closed control loop with feedback. This system allows demand-dependent, energy-saving air conditioning and optimally controls single rooms or areas of air-conditioning systems. Provides reliable operation in harsh environmental conditions with IP66 protection index control components. Offers superior protection against dust, moisture and other external factors. Guarantees long-lasting performance in harsh conditions of industrial environments. Provides precise pressure control in 0-300 Pa measuring range. Works at ambient temperatures from 0°C to +50°C and delivers reliable measurement performance in measuring air conditions of 0-+50°C, 5-95% relative humidity (non-condensing). Controlled with 0-10V DC and 2-10V DC command signal. Works with 24V AC/DC ±15% supply voltage (50/60Hz). These standard signal ranges provide compatibility with most industrial control systems and offer easy integration opportunity. Provides special protection for aggressive media with DD varnish coating. Also offers durability even in harshest chemical conditions with 1.4301 and 1.4571 stainless steel material options. Shows superior resistance against corrosive gases and aggressive chemicals. Regulates air velocity in duct in range of 2-13 m/s. This wide speed range meets different application requirements and provides system flexibility. Feature of being usable with vertical axis increases mounting options. Provides precise control in Vmin, Vmid, Vmax, "OPEN" or "CLOSED" positions with positive control feature. This feature provides great convenience in system installation, testing and maintenance operations. Operator can fix system to desired position. Works within 53-5794 m³/h wide volumetric flow range. This comprehensive capacity spectrum provides usage opportunity in projects of different sizes from small laboratory applications to large industrial facilities.