2 EATON Aerospace Group TF100-94D May 2013 Eaton’s Carter 6-inch Bottom Loading Valves and accompanying Level Sensor are designed for use in refuelers where bottom loading/off-loading rates over 600 gpm (2271 l/min) are desired. There are two internal valves available. Model 64128 is used for both loading and offloading. Model 64118 is used for loading only. Off-loading requires the use of air pressure to open the internal valve. Both valves are used with Eaton’s Carter Model 64079 Level Sensor or as an alternative, they can be used with an optic probe control. Bottom loading control is accomplished automatically when the tank liquid level reaches the pre-set level sensor. Both of the available internal valves can be purchased for use with either a single or dual level sensor, as explained below. There are no moving parts or seals in Eaton’s Level Sensor which, when used with Eaton’s Bottom Loading Valves, will provide high-level bottom loading control. There are no wearing parts in the unit, hence it lasts indefinitely. Truck vibration will have no affect on the sensor, unlike float valves, which are subject to vibration damage. It is available with an optional mounting stud for adjustable level control. The stud is located outside of the collector/drain can for better level control. A collector/drain can and precheck feature are provided as standard equipment. Features yy Air connection on Model 64128 (not applicable to Option C) is made outside of the tank within the mounting flange of the unit. There is no need to breech the tank wall for this connection nor install a separate line to the unit. All air pressure is contained within the valve. yy Pilot valve is identical on all Eaton’s Bottom Loading Valves, resulting in lower maintenance costs Item Description Whittaker Model Eaton Model Comments 6-inch internal valve for off-loading only F620 64128 or 64128C Air pressure required for off-loading. If Whittaker F620 is being replaced then use Model 64128C for a direct replacement, otherwise use Model 64128. 6-inch internal valve for bottom loading and off-loading F620A or B 64128A, AC, B or BC Either single or dual pilots available. Air required for off-loading. See comment regarding Whittaker replacement above 6-inch internal valve for bottom loading only None 64118A or B No off-loading capability, a separate internal valve has to be used. No Whittaker equivalent. Level sensor, no options F613 64079 Precheck and collector drain cans standard on Eaton unit Level sensor with mounting stud F613A 64079A Mounting stud located outside of precheck and drain cans for better control Dual level sensor with mounting stud F613B 64079B Same comment as above yy There is no through-hole in the diaphragm in the pilot to cause leakage and ultimate failure yy Either single level or dual level control available. Dual level control, when used with Model 64079B Level Sensor, provides better shut-off level accuracy and lower surge pressures resulting from closing at very high rates of flow. yy 50 psi (3.447 bar) minimum air pressure and standard air controlling valves (not furnished by Eaton) required for off-loading with Model 64128. No off-loading control provided on Model 64118. yy Internal valve mates standard TTMA sump flange. A flange type is also available to mate the non-standard Whittaker tank flange. yy Low pressure loss. Can load to 1,200 gpm (4542 l/min). yy Can be used with optic high level sensing system Installation Tips yy Install the internal valve from the outside of the tank with sufficient flexible line between the pilot(s) and the level sensor for easier removal and maintenance yy Inlet line to Model 64079 Level Sensor from pressure source (adapter) must be at least 3/8-inch diameter tubing. It should be routed from a port on the bottom loading adapter, such as Design Concepts Models 6958 or 61528 that have ports designed for this application. (See catalog sheet TF100-77 for adapter choices.) Routing the inlet pressure source closer to the internal valve may not allow sufficient pressure for the system to function correctly. If the optional mounting stud (Option A) is used sufficient length of flexible tubing should be used to allow for adequate adjustment. yy Line between the pilot on Model 64128A Bottom Loading Valve and Model 64079 Level Sensor should be 1/4-inch diameter for best operation. Pressure surging may occur if larger tubing is used. yy If desired, a separate precheck system may also be routed from the adapter to the precheck port on Model 64079, although the same effect can be achieved by installing a 3/8-inch springloaded, normally open ball valve in the inlet pressure line. It will be necessary to adjust the precheck gate in the bottom of the Model 64079 to make the precheck effective in either case. This is a trial and error adjustment. Note that there are no “tuning” plugs on the Model 64079 Level Sensor as on the Whittaker Model F613. A simple “gate” type valve in the bottom of the precheck can provides adjusting of the precheck flow. yy It is essential for safety reasons to install a plastic tube to the drain fitting on the bottom of the Model 64079 Level Sensor. Draining fuel from the level sensor, if not collected and drained properly, could generate a static discharge, which could lead to a fire. yy The optional mounting stud is located outside of the precheck and drain cans on the Eaton level sensor. Unlike the Whittaker F613, there are no holes to plug with loose O-rings if the stud is used. yy If installed correctly, the level in the tank can be adjusted over a wide range simply by screwing the stud up or down to the desired level yy If the Eaton internal valve is to be used with an optic probe system, a three-way solenoid valve must be installed in the pressure line from the adapter. When the tank level is below the probe the inlet pressure should be routed to the pilot on the internal valve to cause it to open. When the optic probe is sensing fuel (level below the probe) the pilot on the internal valve must be vented to tank and the inlet pressure shutoff. This will cause the internal valve to close and stop the bottom loading process. Equivalent Part Numbers –Whittaker To Eaton The table below presents the equivalent Eaton models to replace Whittaker units.
RkJQdWJsaXNoZXIy NDE1MjE4