-the FUEL page shows on the SD.
When necessary, the crew can make a selection on the ECAM control panel
(Ref. 31-56-00) to look at the FUEL page.
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2. Component Location
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 001)
**ON A/C 301-399,
(Ref. Fig. 001A)
**ON A/C ALL
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------
5QE ACTUATOR-FUEL CROSSFEED VALVE 148 744 28-23-51 10QM VALVE-FUEL CROSSFEED 142 734 28-23-41 83QM V BAND CLAMP-CROSSFEED VALVE ACTR 140 744 28-20-00
3. System Description
__________________
The crossfeed system has:
-
a crossfeed valve actuator 5QE
-
a crossfeed valve 10QM
-
a V-band clamp 83QM. The crossfeed valve 10QM is installed in the fuel pipe in the center tank. This fuel pipe connects the fuel supply pipes of the left wing to the fuel supply pipes of the right wing. When the crossfeed valve is open the fuel supply pipes are connected. In this configuration, the fuel can be supplied to the engines from either wing tank. The crossfeed valve is installed on the forward-face of the rear spar.
The crossfeed valve is operated by the crossfeed actuator 5QE.
The actuator is attached with a V-band clamp 83QM to the crossfeed valve drive-assembly (on the rear face of the rear spar). The interface between the actuator and the crossfeed valve is a valve spindle that goes through the rear spar. The actuator has two motors, which get their power supply from two different sources:
-
motor 1, the 28VDC ESS BUS (801PP)
-
motor 2, the 28VDC BUS 2 (206PP).
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Crossfeed System - Component Location
Figure 001
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-23-00Page 3 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Crossfeed System - Component Location
R Figure 001A
R 1EFF : 301-399, 1 28-23-00 Page 4
1 1 May 01/04
1 1
1CES 1
R
R
R
The crossfeed valve actuator has a control and indication circuit. The indication circuit has a X FEED pushbutton switch (P/BSW) on the cockpit fuel panel 40VU. The indication circuit interfaces with the two System Data-Aquisition Concentrators (SDAC1/SDAC2) (Ref. 31-54-00).
The P/BSWs and the actuators send data to the SDACs. The SDAC units send the data to the ECAM. The ECAM shows the position of the crossfeed valves on the SD FUEL page. If there is a failure of a crossfeed valve, the EWD (Ref. 31-66-00) shows the message X FEED VALVE FAULT.
There are two indicator lights in the P/BSW (ON and OPEN). These lights are included in the annunciator-light test and dimming (Ref. 33-14-00).
4. Power Supply____________ (Ref. Fig. 002)
5. Interface_________ (Ref. Fig. 003)
6. Component Description_____________________ (Ref. Fig. 004)
A. Crossfeed Valve 10QM
The primary components of the crossfeed valve are:
-
the valve body with a mounting flange
-
the ball valve with its valve spindle
-
the drive assembly.
The crossfeed valve body holds the ball valve which has a bore of 38.1 mm
(1.5 in). The ball valve has a master key-way that engages with the valve spindle. The valve spindle also has a master key-way that engages with the drive assembly.
The mounting flange of the crossfeed valve body is attached to the forward face of the rear spar with four studs and two countersunk bolts. The studs also attach the drive assembly to the rear face of the rear spar. The drive assembly has a flange to which the actuator is attached and a location slot to make sure the actuator engages correctly. A set of O-ring seals prevent a leakage of fuel through the mounting flange.
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Fuel Crossfeed System - Electrical Schematic Figure 002
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Fuel Crossfeed System - Interfaces Figure 003
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Crossfeed Valve (10QM) and Actuator (5QE) Figure 004
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