ring-butterfly damper with pneumatic actuator, single acting, DN200, PN10; body, disc and shaft AISI 314; packing gland adjustable graphite sealing cord; mounting bracket zinc plated steel; 200/300mm height; temperature range max. 1000°C; operating pressure max. 500mbar, rotation angle : 0...90° adjustable, single acting actuator PAS1155-R; control pressure 5,5…7bar; Built-on digital I/P positioner, 4...20 mA, compressed air filters, 5ym, wafer, leakage rate 1%, in case of failure of the control signal the butterflyvalve will be open; incl. inspection certificate EN-10204-3.1; for material, pressure and tightness