Operation & Maintenance Instruction
August, 2003
Page 3 of 24
4225-50, S.6
Figure 2 - Pipe Bracket Service Face
Port Identification
Figure 3 - Pipe Bracket Emergency Face
Port Identification
Figure 4 - Pipe Bracket Face Pipe Connections
e3
b
b4
c
c3
c2
Q.A.C
.
c4
c3
b2
EX
a
E2
b
Port
a - To Auxillary Reservoir
b - To Brake Pipe
b2 - To Strainer Nut Cavity
c3 - To Emergency Face and Branches c2 and c4
c4 - To Passage c3
e2 - To Emergency Reservoir and to Emergency Face
EX - To Retaining Valve
Port
b - To Brake Pipe
b4 - To Brake Pipe Passage b
c - To Brake Cylinder
c2 - To Passage c3
c3 - To Service Face and Branch Ports c2 and c4
e3 - To Emergency Reservoir and Service Face
Q.A.C. - To Quick Action Chamber
Port
Designation
Flange Size
1
Brake Pipe
1 inch
2
Emergency Reservoir
3
/
4
inch
3
Brake Cylinder
3
/
4
inch
5
Auxiliary Reservoir
3
/
4
inch
10
Retainer
3
/
8
inch
