11D1. Pilot air valve To release Loco brake 12 Pressure Limiting Valve Pilot air to Relay C2. is Limiting to 1.8 kg / 2Cm 13 M. R. Safety Valve When M. R. Pressure goes beyond 10.5 kg This (Main Reservoir)Valve will function
14 Duplex Check Valve It Set will not allow MR equalising pipe Air to return back 2 at 5 kg / Cm to MR 2 Feed Valve 15 F2/C2N To maintain Feed pipe Pr at 6 kg / Cm Syed Khaja Hussain Instructor/Rng/DTTC/GTL
AIR FLOW INDICATOR WHITE NEEDLE (REFERENCE) RED NEEDLE (REGESTER) AIR FLOW MEASURING VALVE Syed Khaja Hussain Instructor/Rng/DTTC/GTL
SA9 CUT OUTCOCK IN CONTROL STAND A9 CUT OUT COCK IN CONTROL STAND
MR SAFETY VALVE
PRESSURE SWITCH
Syed Khaja Hussain F2 Instructor/Rng/DTTC/GTL
FEED VALVE
SA-9 (Working Control Stand) 2 0
SA9 COC
Loco Brake Application (Non-Working BySA-9 Release Control Stand) SA-9 Application by SA-9 3 0
MR 2 8 to 10 KG/CM2
BRAKE SYSTEM COC(MR-2 COC)
3.5 KG/CM2
DCV
MU2 2 B
3 0 SA9 COC
TRA IL LEA D
2 0
DCV
3.5 KG/CM2 From C3W DV BC Gauge
C-2 RELAY VALVE
MR-2
1
2
APPLY-SA9
3 3.5 KG/CM2
Brake
2 0
Bogie Isolation COC-2
Bogie Isolation COC-1
Brake Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL Cylinder
SA-9 (Working Control Stand)
Exh -Port
2 0
SA-9 (Non-Working Control Stand)
Releasing SA-9 MR 2
3 0
3 0
BRAKE SYSTEM COC (MR-2 COC)
SA9 COC
2 0 SA9 COC
DCV
0 KG/CM2
MU2 B
2
TRAI L
20
0 KG/CM2 LEA D DCV
From C3W DV
BC Gauge C-2 MR-2
2 1 3
Exhaust Port
0 KG/CM2
Bogie Isolation Bogie Isolation Brake Brake COC-2 COC-1 Cylinder Cylinder Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Release (NonBrake Pipe Charging A-9 in Working Control Stand) IRAB A-9 kept in Release
A-9 (Working Ex Control Stand) 1 5
3 0
A9 COC
MR 2 8 to 10 KG/CM2
BRAKE SYSTEM COC(MR-2 COC)
Open
5 KG/CM2 Closes below
4.5
Kg/cm Opens above Kg/cm2 P 1 2
4.8
3 1 3
Airflow Indicat or
R6
MR2 Air Flow Measuring Valve
Addl. C-2 RELAY VALVE Choke 5.5 MM Run/Rel. Magnet Valve
19.5 MM
TRA IL
3 0
A9 COC Close
VCD COC
5 KG/CM2
OPEN Exhaut Port
LEA D
VCD Magnet Valve
MU2 B
BP Gauge
2
1 3 E X
5
3/4 “ OR 1” BP COC Open
P2 5 2 KG/CMCloses below Kg/cm Opens above Kg/cm2
Drops out 2.8 Kg/cm2 Picks up at 4.0 P C2 S Kg/cm 4.4
2
4.7
PCS COC Ope n
By Syed Khaja Hussain BP PIPE Developed Instructor/Rng/DTTC/GTL When SP1/SP2 Pressed --Quick Charging of BP LINE
1
Ex
(Non-Working GRADUATED APPLICATIONA-9 Control Stand) Ex in IRAB 1
Exhaust Port
A-9 kept in APPLICATION
1 5 A9 COC
A-9 (Working 3Control Stand) 0
BRAKE SYSTEM COC(MR-2 COC)
Open Closes below
4.5
Airflow Kg/cm2 Indicat Opens above or Kg/cm2 P 1
4.8
R6
MR2 Airflow Measuring Valve
MU2 B
3 1 3
VCD COC
OPEN
5 KG/CM2
EX
LEA D
VCD Magnet Valve Gaug e
2
3
E X
A9 COC
Close
1
Run/Rel. Magnet Valve
19.5 MM
TRA IL
5
BP
Addl. C-2 RELAY VALVE Choke 5.5 MM
3 0
MR 2 8 to 10 KG/CM2
3/4 “ OR 1” BP COC
P2 Closes below Kg/cm2 Opens above Kg/cm2
Open
BP PIPE LINE
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Drops out 2.8 Kg/cm2 Picks up at 4.0 Kg/cm2 4.4 4.7
PCS
PCS COC Ope n
Conjunction Loco Brakes Application MR -2 C-3 W DV
MR-2 Isolati on Handle Isolati on Cock Open
BP Destroy
BP Pipe Line Connection
BKI V
Limiting Valve
4
BC
1.8 Kg/CM2
QR V
EX H
MR-2
16
F-1 Selector DCV
From C3W DV
From SA-9
C-2 MR-2
Foot Pedal Not Pressed
2 1
1.8 KG/CM2 3 1.8 KG/CM2
Brake Cylinder
Bogie Isolation Coc2
Bogie Isolation Coc-1
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL Prop by BP drop
MR-2
asing of Conjunction loco brakes( By BP charg MR -2
BKIV
BP 5 Kg / cm2 C-3W DV
BP Pipe Line Connection 1.8 BC
MR-2
4
Kg/Cm2
EXH Port
Isolating handle
Isolati on Cock Open
Limitin g Valve
MR-2
QRV
From SA-9
C2 Relay Valve MR-2 MR-
Foot Pedal Not Pressed
EX H DCV
16
F-1 Selector
2 1 3
0 KG/CM2
0 KG/CM2
EXH Port
Brake Cylinder
Prop. release by BP
Bogie Isolation Coc2
Bogie IsolationCoc-1
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Brake Cylinder
MR-2
easing of Conjunction Loco Brakes( by Foot Pe MR -2 C-3W DV
MR-2
BP Pipe Line Connection Limiti ng Valve
BC
Isolating handle
Isolati on Cock Open
BKIV
EX H
MR-2
Release r
When Foot Pedal MR-2 Pressed
F-1 Selector DCV
From SA-9
C-2 Relay Valve
MR-2 MR
2 1
0 KG/CM2
0 KG/CM2
3 EXH Port
Brake Cylinder
Bogie Isolation Coc-2
Bogie Isolation Coc-1
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL By PVEF
Brake Cylinder
Releasing of Conjunction loco brakes( By QRV BKIV
MR -2 C-3W DV
BP Pipe Line Connection 1.8 BC
MR-2
4
Kg/Cm2
EXH Port
Isolating handle
Isolati on Cock Open
Limitin g Valve
MR-2
From SA-9
QRV
C2 Relay Valve MR-2 MR-
Foot Pedal Not Pressed
EX H DCV
16
F-1 Selector
2 1 3
0 KG/CM2
0 KG/CM2
EXH Port
Brake Cylinder
Prop. release by BP
Bogie Isolation Coc2
Bogie IsolationCoc-1
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Brake Cylinder
MR-2
oco Brake application in MU/Idle/Dead MR2 MR EQ Pipe & BC EQ Pipe are coupled When
SA-9
MU2B (Lead)
2
From C3W DV
From C3W DV
DC V
2 0
MR 1 2
14 30
EX H
3
DTT C w GTL
DC V X
16 20 14
16 2
SA-9
4
4 C-2
MU2B(Tra il)
F-1 (Lead)
BC EQ
2
C-2 1
30
MR 2 EX H
3
F-1 (Trail)
DTT C w GTL
MRE Q To Brake
MR 2
MR 1
LEADING LOCO
Syed Khaja Hussain Instructor/Rng/DTTC/GTL
MR 1
MR 2
TRAILING
To Brake
rake application in MU/Idle/Dead thro SA-9
When MR2 MR EQ Pipe & BC EQ Pipe are coupled B MU2B MU2B(Tra P (Lead) il) MR MR 2 From C3W From C3W 2 DC DC 2 DV DV 2 V X V 0 4 4 C-2
MR 1 2
2
14 30
EX H
3
DTT C w GTL
16 20 14
16
F-1 (Lead)
BC EQ
2
SA-9
C-2 1 MR 2
30
EX H
3
F-1 (Trail)
DTT C w GTL
MRE Q To Brake
MR 2
MR 1
LEADING LOCO
Syed Khaja Hussain Instructor/Rng/DTTC/GTL
MR 1
MR 2
TRAILING
To Brake
Loco Brake Application In Dead Loco
n MR EQ & BC EQ Pipes are not coupled only B.P conne BP ( Dead Loco )
From SA9
F1 (Auto Lead)BKIV
DCV
16
LV
Isolation COC MR Gauge
4 1.8 Kg/CM2
C3W DV 5 Kg/CM2
MR5 2
Kg/CM2
MU2B (Lead) 2 C2 Relay Valve
1 MR2 3 BC
EX H
NRV MR1
BP ( Live loco)
6.4. 1. So, 7. 5.3. The And When pilot 2. Then BP Further MR2 air pressure BP from pressure pressure pressure this MR2 pressure ofAir from Live waiting reduces loco MR2 goes at is , C3W goes port charged goes tois MR-2through D.V. No. to toport port 1of to enters dead no. dead No.1 2C3W loco in loco, of ofbrake C-2 C2 get the relay As such MR pressure (Pressure 5 Kg/Cm2) available at C-2 Relay Syed Khaja Hussain valve unbalanced cylinder same (1.8BP to Kgapply and pressure / Cm2) connect Loco as goes distributor per brakes MR2 relay the to dead pressure C3W in valve. setting dead valve DV loco. of Through via Limiting C3W ( Max Isolation to1.8Kg/Cm2) Valve. F1 Selector Where COC Valve of loco. Instructor/Rng/DTTC/GTL Dead
FEED PIPE CHARGING MR Safety valve J Filter Main Reservoir Reservoir 11 Main
Control reservoir, auxiliaries etc. Brake system COC Main Reservoir 2 Check valve
Duplex check valve 5 Kg/cm2 To MR Equalizing pipe
J Filter
To Brake system
D24B Feed Valve COC
FEED PIPE ( 6 Kg/cm2)
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Feed valve 6 Kg/cm2
WORKING PRINCIPLE OF TWIN PIPE AIR BRAKE SYSTEM
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
PARTS OF TWIN PIPE SYSTEM Feed Pipe BrakePip e Isolation COC FP Dust Collector FP NRV
Control Res.
Dust Collector BP
Distributor Valve
Aux. Res. Brake Cylinder
Isolation COC BP
EX QRV
Brake Cylinder
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
CHARGING
FP B P
BC is ConnectedTo Exhaust BC 2in 2 BP & CR Charged to 5kg/cm FP &Released AR Charged to 6kg/cm Condition
IC
IC
CR
DC
DC NRV
Aux.Res. 6 kg/cm2 BC
DV EX QRV
BC
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
RECHARGE FP APPLICATION B P IC
BPconnected isCR Reduced inBC Steps Apply Brake & CR is 2 is connected to&BP & AR is disconnected BC To exaust BC pressure comes to AR is Connected to BCto Pressure Reaches 3.8kg/cm 2 BP Recharged to 5kg/cm IC From BC Disconnected Brakes are zero &&Brakes areApplied released CR
DC
DC NRV
DV AR EX
BC
QRV
BC
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
MANUAL RELEASE FP B P IC
BCisconnected exaust BC pressure Qrv pulled & CRtopressureComes to zero comes to zero & brakes are released
IC
CR
DC
DC NRV
DV AR EX
BC
QRV
BC
Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTL
Thank you for interesting in our services. We are a non-profit group that run this website to share documents. We need your help to maintenance this website.