FLOW CONTROL WITH INTEGRAL FLAPPERS FLOW CONTROLS All data and contents of this sheet are the exclusive property of Riels Instruments RIV920 brass sight glass with temperated glass and integral flappers Made for the control of movement of liquids, they are suitable for the passage of water; oils, gasoline, diesel and all other liquids except for corrosive ones. - Body made of brass or bronze to a tempered glass, with fins, ring bolted - Tempered glass - Operating temperature : -I0+200°C (depending on the maximum pressure of operation) - Maximum operating pressure : 16 bar - FASIT®205 standard seal (FASIT®205 for temperatures up to 200°C) For a correct mounting the valve must be installed following the flow direction indicated by the arrow engraved on the body Use to seal the threads of a material compatible with the fluid used. On order to mantain the watertight on the threads,a material compatible with the fluid must be used. Screw the valve on the threaded tubes by positioning the key exclusively on the special hexagonal parts up to the locking of the valve on the tube. After connecting the valve to the pipes, make sure the valve does not suffer stress due to piping, so use of heavy clamps to support the piping. Slowly open the upstream shutoff devices to prevent water hammer