User manual WA KATES MODELS 50FB, 50FB-UHRA FLOW RATE CONTROLLERS

[. . . ] EQUALLY IMPORTANT: WHEN DIS-ASSEMBLING, SERVICING, OR CLEANING THE CONTROLLER, THE INTERNAL PARTS MUST BE HANDLED WITH CARE TO PREVENT DAMAGING THE SURFACE FINISH IN ANY WAY. OPERATION OF A KATES ADJUSTABLE FLOW RATE CONTROLLER THAT IS SUPPLIED BY A POSITIVE DISPLACEMENT PUMP, WILL BE SATISFACTORY ONLY IF A PRESSURE-RELIEVING VALVE IS CONNECTED BETWEEN THE PUMP AND THE CONTROLLER. THIS IS TO BYPASS EXCESS FLUID BACK TO THE FLUID SOURCE, OR TO THE INTAKE OF THE PUMP. INSTALLATION 1. [. . . ] During this warming up period, the controller may be somewhat sluggish in action. If desired, this warming up period may be eliminated by the use of a heating coil or jacket. SERVICE INSTRUCTIONS The Kates Flow Rate Controller has only one moving element, and is designed so that there are no complex linkages, delicate bearings, or any failure-prone components. Therefore, occasional cleaning may be the only servicing the controller will require. CAUTION: MAKE SURE THAT THE CONTROLLER IS RELIEVED OF PRESSURE BEFORE ATTEMPTING TO SERVICE OR CLEAN. TO CLEAN CONTROLLER CAUTION: in all cleaning operations, be very careful not to scratch, nick or mark any surfaces or edges. It is necessary to remove the controller from the line to clean. If installation includes proper shutoff and bypass valves, operate these and take the controller off stream or control. Arrange a clean area where internal trim parts can be placed and kept free of lint or grit. Do not remove the hex nut and the socket head cap screw in the center of the adjuster orifice assembly. By moving this rotationally, the flow rate will be altered. Remove the screws holding the adjuster orifice assembly in the body, pull the assembly out of the body, and place in the clean area. Remove end plug, spring, piston, and place all in the clean area. 5. 6. 9. Thoroughly clean all the parts that have been removed from the controller by immersing them in a suitable solvent. Thoroughly clean and flush inside of controller body with the solvent, and drain. Because of the closely fitted parts, it is VERY IMPORTANT that all parts and surfaces, including valve ports, be COMPLETELY CLEAN. Any dirt, sediment, coating or gummy residue must be completely removed. [. . . ] KATES COMPANY will replace free of charge any equipment returned, with shipping charges prepaid, found to have been defective at time of shipme nt. This warranty does not apply to : (a) damage resulting from misuse or inadequate handling; (b) damage resulting from continued use after defect is apparent; (c) any other damage, loss or liability; or (d) any piece of equipment that is changed, modif ied or altered in any way after it leaves the factory. KATES COMPANY shall be limited to the replacement, f. o. b. [. . . ]