security control device has two hands

THE DEVICE IS INTENDED FOR A MEMBER ENGINE OPERATING UNDER PRESSURE. IT HAS TWO VALVES SWITCH INSTALLED IN PARALLEL AND CONTROLLED BY CONTROL VALVES THAT ARE EACH MECHANICALLY COUPLED WITH A DRAWER. VALVE EACH REFERRAL IS CONNECTED BY THE DRAWER OTHER ENTRANCE TO ENVIRONMENTAL PRESSURE AND THE TWO ARE CONNECTED TO ENTER MOTOR BODY BY WHICH THE ENVIRONMENT UNDER PRESSURE CAN SUPPLY SIDE THEREOF. SECOND SIDE BODY ENGINE 12 DOUBLE ACTING DIRECTLY CONNECTED WITH VALVE 68 REFERRAL TO ENTRY ENVIRONMENTAL P PRESSURE THAT MAY BE DIRECTED BY THE OUTLET VALVE AND 64 WHICH BOTH INPUTS ARE CONNECTED TO ROUTES rESPECTIVELY CONTROL 54, 56 UP CONTROL VALVE TWO 14, 16 VALVES FOR REFERRAL 18, 20.