User manual WA KATES MODELS 5050 & 5160 ADJUSTABLE FLOW RATE CONTROLLER

[. . . ] The Kates Controller is constructed substantially, but pipe supports should be located so that the controller is not subject to mechanical load due to piping, or expansion or contraction of piping. Proper provisions for pipe expansion should always be made. The controller should be installed at a point in the pipe where it will be completely filled with liquid under all conditions or operation. The preferred axis of the controller is vertical, with the bonnet up. [. . . ] 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 not necessary to remove the controller from the line to clean. If installation includes proper shutoff and bypass valves, operate these and take controller off stream or control. Arrange a clean area where internal trim parts can be placed and kept free of lint or grit. Remove bonnet bolts, lift bonnet assembly straight up, and set it in the clean area. Lift out the orifice sleeve and put it in the clean area. Remove the orifice cylinder clamp screws, lift out the orifice cylinder and put it in the clean area. Remove the spring and piston and set them in the clean area. Valve sleeve is now exposed and can usually be cleaned in place. Thoroughly clean all the parts which 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 small size of orifice opening and the closely fitted parts, it is VERY IMPORTANT that all parts and surfaces, including the orifice opening and valve ports, be COMPLETELY CLEAN. Any dirt, sediment, coating or gummy residue must be completely removed. Wipe all parts and surfaces dry with a clean, lint-free cloth. CAUTION: in all cleaning operations, be very careful not to scratch, nick or mark any surfaces or edges. Replace piston carefully into valve sleeve. 9. 10. Insure that it is clean and that it seats properly. Replace orifice cylinder insuring that it seats firmly on the valve sleeve. Opening should face away from the inlet pipe. See that the orifice sleeve is clean and that the orifice slot is clean and open. Place it on the orifice cylinder, check for free rotation, and see that it does not ride on top of the stop pin. Replace body o-ring if necessary, then replace bonnet. [. . . ] 6. 7. BLT 303 - 01 PRODUCT WARRANTY The W. A. KATES COMPANY guarantees every piece of equipment manufactured by it to be inspected, tested, and free from defects in workmanship or material when shipped from its factory. No warranty of corrosion resistance of any parts or assembly is expressed or implied. This guarantee is valid for one year form date of shipment from its plant. [. . . ]