China TB Braking System,

System Introduction

China TB Braking System is a 2 presssures direct-acting braking system developed according to the China railway technology policy and standard .It is suitable for the traction total weight no more than 10000 tons, the running speed of no more than 120 km/h train and goods train.

System configuration

China TB truck brake system configuration includes: 120 distribution valve (or 150 distribution valve optional), intermediates, emergency valve, combined dust catcher, KZWA empty and loaded car automatic adjusting device (or TWG-1 empty and loaded car automatically adjusting device is optional) coupling cock, hose connectors, 250 type bidirectional shoe brake gap automatic regulator, brake cylinder (a variety of spinning seal type brake cylinder, brake lubrication cylinder, brake unit cylinder optional), derailment automatic braking device,auxiliary reservoir,accelerated release reservoir.

Parts Introduction

Name

Type 120 Air Control Valve

Function

Type 120 air control valve is the core part of the brake system, to control the brake, ease and other functions of the brake system .

Technical parameters

Operating temperature:-50~70℃
Standard pressure:500kpa,adapt 600kpa
Max.permitted service pressure:380±10kPa or 420±10kPa
speed of emergency brake:280m/s
Release propagation rate:160m/s

Material Science

Cast iron or aluminum-alloy

Name
Type 120 Air Control Valve
Function
Type 120 air control valve is the core part of the brake system, to control the brake, ease and other functions of the brake system .
Technical parameters
- Operating temperature:-50~70℃
- Standard pressure:500kpa,adapt 600kpa
- Max.permitted service pressure:380±10kPa or 420±10kPa
- speed of emergency brake:280m/s
- Release propagation rate:160m/s
Material Science
Cast iron or aluminum-alloy
Type 120 Air Control Valve
Name
Type 150 Air Control Valve 150
Function
The functions of type 150 air control valve are consistent with 120,but plunger valve replace the slide valve ,structure is more reliable, maintenance is more convenient.
Technical parameters
- Operating temperature:-50~70℃
- Standard pressure:500kpa,adapt 600kpa
- Max.permitted service pressure:380±10kPa or 420±10kPa
- speed of emergency brake:280m/s
- Release propagation rate:160m/s
Material Science
aluminum-alloy
Type 150 Air Control Valve
Name
Type KZWA Automatic Variable Load Adjusting Device
Function
To realize the automatic variable adjustment of brake cylinder pressure along with wagon load.
Technical parameters
- Operating temperature:-50~70℃
- To realize the automatic variable adjustment of brake cylinder pressure along with wagon load
- Empty pressure:140±20kPa(adjustable)
Material Science
Cast iron
Type KZWA Automatic Variable Load Adjusting Device
Name
Type TWG Automatic Variable Load Adjusting Device
Function
To realize the automatic variable adjustment of brake cylinder pressure along with wagon load, it is way of installation different from KZW .
Technical parameters
- Operating temperature:-50~70℃
- To realize the automatic variable adjustment of brake cylinder pressure along with wagon load
- Empty pressure:140±20kPa(adjustable)
Material Science
Cast iron or aluminum-alloy
Type TWG Automatic Variable Load Adjusting Device
Name
Type 250 Brake regulator
Function
Type ZT-250 two-way brake shoe slack adjuster is a root can automatically lengthened or shortened link, to ensure the distance of the brake shoe and the wheel tread surface remain unchanged during the train operating
Technical parameters
- Operating temperature:-50~70℃
- Effectively adjust stroke 250mm .
Material Science
High-quality carbon steel
Type 250 Brake regulator
Name
Spinning-Formed Sealed type Brake Cylinder
Function
Brake cylinder can produce the push power according to the change of brake cylinder pressure and the piston size ,and pass this power to the rigging by piston push rod. when the wagon releases,the brake cylinder with push-rod return device can make the block leave the wheel tread.
Technical parameters
- Operating temperature:-50~70℃
- Diameter of piston:8in 、10in、12in 、14in etc .
Material Science
High-quality carbon steel
Spinning- Formed Sealed type Brake Cylinder
Name
Derailment Automatic Brake Device
Function
when an accident of derailment happened on a train ,causing an emergency brake application.
Technical parameters
- Operating temperature:-50~70℃
Material Science
Cast iron
Derailment Automatic Brake Device
Name
Angle cock
Function
The angle cock is used to close the air brake device in the vehicle and empty the the compressed air in hose connector,divided into type L and type R, type L is used for installing on the left side of the coupler, the type R is used for mounted on the right side of the coupler
Technical parameters
- Operating temperature:-50~70℃
- Drift diameter:≥ 25mm
- Exhaust port cross section:≈80mm2
- Working pressure:0~1MPa
- Hand torque:9~20Nm
Material Science
Cast iron
Angle cock
Name
Hose connector
Function
Hose connector for connecting train tube for vehicles.
Technical parameters
- Operating temperature:-50~70℃
- Drift diameter:≥ 25mm
- Working pressure:0~1MPa
- Hose burst pressure:≥7MPa
Material Science
Cast iron and rubber
Hose connector
Name
Combined dust collector
Function
Filter the dust impurity in the train pipe
Technical parameters
- Operating temperature:-50~70℃
Material Science
Cast iron
Combined dust collector

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