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BRAKE SYSTEM

Tightly cooperated with CSR Meishan zhidong co.ltd, TEDRAIL has the ability to supply the Completed Air Brake System which manufactured by CSR. Following products could be supplied:

  • TB Air Brake System - Chinese Railway Standard

  • AAR Air Brake System – American Association of Railway

  • UIC Air Brake System – International Union of Railways

  • ROA Air Brake System - Australian

  • MRD Air Brake System – GOST Standard for CIS

All systems have already been exported to Australia, Namibia, Angola, Pakistan, Sudan, Mauritania etc. System has been certified as stable, good performance and reliability by overseas customers.

Production

All brake system components have been manufactured by advanced precise casting and machining equipment, including

  • Automatic Casting Iron Production Line
  • 4-Axis CNC Milling Centers
  • CNC Tuning Centers
  • Spinning Machines
  • CNC Lathe Machines
Quality,certificate and service
  • Strict quality control process and inspection procedure, and certified by ISO 9000, IRIS and TSI;
  • Quick response after sales service system and Free Technical Support
  • Professional service team to create product life cycle documents, regularly remind the customers to inspect and maintenance
  • Computer controlled experimental test stand, which avoid the human mistake, and promise the consistency of product performance and quality.
Components for Air Brake System
Air Control Valve

Description:

Key part of the air brake system, to have system to Charging, Braking, Release and the other functions.

Features:

  • Comply and exchanged with the main brake system worldwide, such as AAR, UIC, Australia Railway, TB
  • Main Material- Aluminum Alloy

Application:

Locomotive, Freight Wagon, Passenger Coach

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

AUSTRALIA ROA STANDARD BRAKE SYSTEM

System Introduction

Australia ROA standard brake system is in accordance with the Australia ROA standard ,have been loaded more than 100 sets on the Australia flatcar ,hi-cube box car,depressed center flat car.

未命名-1.jpg

Name

Type 150 Air Control Valve

Function

Type 150 Air Control Valve is the key part of the Australia standard brake system, controlling brake system to generate inflation, braking, ease and the other functions.

Technical parameters
  • Operating temperature:-40~70℃
  • Standard pressure:500kpa
  • Max.permitted service pressure:370±20kPa
  • Max.permitted service pressure of Empty position brake cylinder:adjusting as the request of vehicle.
Material Science

aluminum-alloy

  • Name

    Type 150 Air Control Valve

    Function

    Type 150 Air Control Valve is the key part of the Australia standard brake system, controlling brake system to generate inflation, braking, ease and the other functions.

    Technical parameters
    • Operating temperature:-40~70℃
    • Standard pressure:500kpa
    • Max.permitted service pressure:370±20kPa
    • Max.permitted service pressure of Empty position brake cylinder:adjusting as the request of vehicle.
    Material Science

    aluminum-alloy

    Type 150 Air Control Valve
  • Name

    Type CHP Combined Dust Collector

    Function

    High precision filtering device for improving air quality of braking system

    Technical parameters
    • Operating temperature:-40~70℃
    • 60 ~ 40 mesh copper based powder metallurgy material was used for sintering .The "W" shaped structure is designed to increase the effective filtration area of the filter cup in a limited space.
    Material Science

    Cast iron

    Type CHP Combined Dust Collector
  • Name

    Angle Cock

    Function

    AUS-1 angle cock is 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
    • Drift diameter:≥ 32mm
    • Working pressure:≤10bar
    • Working temperature:-40℃~70℃
    • Hand torque:9 Nm~20Nm
    Material Science

    Cast iron

    Angle Cock
  • Name

    Type TWG-1 Automatic Variable Load Adjusting Device

    Function

    It includes type T-1 adjusting valve and type WG-1 Sensing valve ,to realize the automatic variable adjustment of brake cylinder pressure along with wagon load.

    Technical parameters
    • Working temperature:-40℃~70℃
    • Continuously adjust the brake cylinder pressure according to the vehicle load condition.
    Material Science

    aluminum-alloy

    Type TWG-1 Automatic Variable Load Adjusting Device
  • Name

    Relay valve

    Function

    By changing the main valve function, changing the direct type to an indirect, which controls the charging and exhausting of the brake cylinder.

    Technical parameters
    • Working temperature:-40℃~70℃
    Material Science

    aluminum-alloy

    Relay valve

GOST STANDARD BRAKE SYSTEM

System Introduction

MRDbrakesystemis in accordance withtheRussiaGOST standard,can mix with the CIS train breaking system,can meet the working temperature from -60℃-+60℃。。

System configuration

The basic configuration of the breaking system: Distribution valve、Empty and load automatic adjustment equipment、Brake cylinder、Brake slack adjuster,auxiliary air cylinder,angle plug doors,broken cock, hose connectors,and so on.

Introduction to components
Name

Sensing valve

Functions

Depending on the position of stopper spring deflection when the load changes in different pillow vehicle, sensing valve whereby a portion of the input signal relay valve air pressure, so that the brake cylinder pressure with a car load without level ground, varies in proportion to achieve air vehicle Automatic stepless adjustment.

Technical parameters
  • Working Temperature:-60~60℃
  • Empty parking brake: falling gas chamber was raised from 0 to 300kPa of time shall not exceed 12s Semi-heavy braking position: Buck chamber pressure should be 100 ± 25 kPa Heavy parking brake: Buck chamber pressure should be zero for the buck chamber pressure.
Material Science

Aluminum alloy

  • Name

    Sensing valve

    Functions

    Depending on the position of stopper spring deflection when the load changes in different pillow vehicle, sensing valve whereby a portion of the input signal relay valve air pressure, so that the brake cylinder pressure with a car load without level ground, varies in proportion to achieve air vehicle Automatic stepless adjustment.

    Technical parameters
    • Working Temperature:-60~60℃
    • Empty parking brake: falling gas chamber was raised from 0 to 300kPa of time shall not exceed 12s Semi-heavy braking position: Buck chamber pressure should be 100 ± 25 kPa Heavy parking brake: Buck chamber pressure should be zero for the buck chamber pressure.
    Material Science

    Aluminum alloy

    Sensing valve
  • Name

    Relay valve

    Functions

    Relay valve according to a signal sensing valve, so that the brake cylinder pressure with a car load without level ground, varies in proportion to realize empty and load automatic stepless adjustment.

    Technical parameters
    • Working Temperature:-60~60℃
    • When the load (constant pressure 600kPa), the brake cylinder pressure is 430kPa; In the empty truck, the brake cylinder pressure is 160kPa;
    Material Science

    Relay valve
  • Name

    Type ZT3-500 bidirectional brak

    Functions

    ZT3-500 bidirectional brake shoe clearance adjustment device is able to automatically extend or shorten a link, to ensure that the brake shoe and the wheel tread surface distance between the vehicle application process remains unchanged.

    Technical parameters
    • Working Temperature:-60~60℃
    • Slack adjuster capacity:675mm
    Material Science

    High quality steel

    Type ZT3-500 bidirectional brak
  • Name

    The brake cylinder

    Functions

    The brake cylinder can generate the thrust force which changes with the compression air pressure and the piston size, and the thrust is transferred to the basic brake device through the piston rod.

    Technical parameters
    • Working Temperature:-60~60℃
    • Piston diameter:356 mm
    • Piston maximum stroke: 240mm
    Material Science

    High quality steel

    The brake cylinder
  • Name

    The brake cylinder

    Functions

    Auxiliary reservoir is used for storing pressurized air during braking condition as the air supply pressure air through the dispensing valve into the brake cylinder charge, braking action.

    Technical parameters
    • Working Temperature:-60~60℃
    • Max.permitted service pressure:700kPa
    Material Science

    High quality steel

    Auxiliary reservoir
  • Name

    Angle Cock

    Functions

    Angle cock for path breaking in the hose connector off the train pipe to the atmosphere.

    Technical parameters
    • Working Temperature:-60~60℃
    • Max.permitted service pressure:1000kPa
    • Angle Cock in the closed position with self-ventilation function
    Material Science

    Cast iron

    Angle Cock
  • Name

    Hose coupling

    Functions

    Hose coupling is in accordance with the TB standards

    Technical parameters
    • Working Temperature:-60~60℃
    • Max.permitted service pressure:1000kPa
    Material Science

    Cast iron+Rubber

    Hose coupling
  • Name

    Type MAC Control Valve

    Functions

    MAC control valve is a core component of the braking system, brake system to produce inflation control, braking and ease other functions.

    Technical parameters
    • Working Temperature:-55~60℃
    • Meet can work properly when the brake pipe of constant pressure 450kPa ~ 600kPa Three pressure between two pressure and convertible. When a direct mitigation function at a second pressure, the pressure in the third stage of remission should have a function. Brake cylinder pressure: when the load (constant pressure 600kPa) 400kPa ~ 450kPa; at no load, 140kPa ~ 180kPa. When heavy parking brake cylinder 0 to 350kPa of time is 7 ~ 14s, Brake cylinder pressure began to fall to no more than 40kPa 60s.
    Material Science

    Aluminum alloy

    Type MAC Control Valve
  • Name

    Truncated plug

    Functions

    Truncated plug connection managers and distribution valve connect or close the door.

    Technical parameters
    • Working Temperature:-60~60℃
    Material Science

    Cast iron

    Truncated plug

UIC STANDARD BRAKE SYSTEM

MUB brake system is in accordance with the UIC standards ,and have TSI certificate,to ensure the vehicle with MUB braking system and other vehicles fitted UIC can be mixed operation.

System configuration

MUB brake system is mainly composed of distribution valve MUD, weighing valve, brake cylinder, brake shoe adjuster, auxiliary reservoir ,flow throttle , angle cock, coupling hose etc

Part sintroduction
Name

Distributor valve MUD

Functions

Distributor valve MUD is the key part of the air brake system, controlling brake system to generate inflation, braking, ease and the other functions.

Technical parameters
  • Operating temperature:-40~70℃
  • Standard pressure:500kpa,adapt 600kpa
  • Max.permitted service pressure:380±10kPa or 420±10kPa
  • Empty max.permitted service pressure:adjusting as the request of vehicle.
  • Braking time G position :18-30s P position:3~6s Release time G position:45~60s P position:15~20s
Material Science

aluminum-alloy

  • Name

    Distributor valve MUD

    Functions

    Distributor valve MUD is the key part of the air brake system, controlling brake system to generate inflation, braking, ease and the other functions.

    Technical parameters
    • Operating temperature:-40~70℃
    • Standard pressure:500kpa,adapt 600kpa
    • Max.permitted service pressure:380±10kPa or 420±10kPa
    • Empty max.permitted service pressure:adjusting as the request of vehicle.
    • Braking time G position :18-30s P position:3~6s Release time G position:45~60s P position:15~20s
    Material Science

    aluminum-alloy

    Distributor valve MUD
  • Name

    Weighing Valve type RGC-1A

    Functions

    Weighing valve type RGC-1A provides two kinds of pressure of controlling signals to the MUD distributing value. one is "empty",the other is "loaded ".

    Technical parameters
    • Operating temperature:-40~70℃
    • Maximum moving distance of connect :65mm
    • Effective moving distance of connect :6mm
    • The response time, the empty spaces to loaded position
    • Quickly move the connect to the loaded position, to keep the 3S above, the output pressure reached 300kPa within 30s .
    • Quickly move the push rod to the loaded position,keep the 3S above , the output pressure can not cause the conversion from empty to loaded position.
    • Response time - loaded position to an empty space
    • Quickly release the push rod to the empty spaces, to keep the 3S above, the output pressure drop to 50kPa within 90s .
    • Quickly release the push rod to the empty space, to keep 3S above, the output pressure can not cause the conversion from loaded to empty .
    Material Science

    Cast iron

    Weighing Valve type RGC-1A
  • Name

    Slack Adjust Type ZTI-600

    Functions

    Type ZT1-600 slack adjuster can automatically shorten and stretch due to worn-out or replacement of the brake shoe,in order to maintain a constant brake clearance and piston stroke in brake cylinder .

    Technical parameters
    • Operating temperature:-40~70℃
    Material Science

    High-quality carbon steel

    Slack Adjust Type ZTI-600
  • Name

    brake cylinder

    Functions

    Type ZT1-600 slack adjuster can automatically shorten and stretch due to worn-out or replacement of the brake shoe,in order to maintain a constant brake clearance and piston stroke in brake cylinder .

    Technical parameters
    • Operating temperature:-40~70℃
    • Diameter of piston:12in 、14in、16in .
    • Piston maximum stroke:220mm
    • Push rod minimum recovery force:600±50N
    Material Science

    High-quality carbon steel

    brake cylinder
  • Name

    Auxiliary Reservoir

    Functions

    Auxiliary reservoir is used to store air pressure,which is used as air source bringing the air pressure into brake cylinder through distributing valve when brake works.

    Technical parameters
    • Operating temperature:-40~70℃
    • Volume:75l、100l、125l series.
    Material Science

    High-quality carbon steel

    Auxiliary Reservoir
  • Name

    Hose coupling

    Functions

    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:-40~70℃
    • Drift diameter:≥ 25mm
    • Exhaust port cross section:≈80mm2
    • Working pressure:0~1MPa
    • Hand torque:9~20Nm
    Material Science

    Cast iron

    Hose coupling
  • Name

    Flow Throttle

    Functions

    The main function is to avoid the sharp reduction of air pressure in auxiliary reservoir (and sharp reduction of brake force),which caused by the crack or falling-down of the hose pipe.

    Technical parameters
    • Operating temperature:-40~70℃
    • Drift diameter:2mm
    Material Science

    Cast iron

    Flow Throttle
  • Name

    Guard Valvee

    Functions

    Guard valve is also named emergency brake valve,which is installed on brake van.It has the function of braking under emergency to ensure the train running safety.when the danger of train has been observed during running,it is operated by the guard in brake van.

    Technical parameters
    • Operating temperature:-40~70℃
    • Standard pressure:500kpa,adapt 600kpa
    • maximum working pressure :700kpa
    Material Science

    aluminum-alloy

    Guard Valve

AAR STANDARD BRAKE SYSTEM

System Introduction

Type MAC brake system is in accordance with requirements of AAR Standard for brake system .Air Brake System MAC has good effects within the range scope from -40℃ to +66℃,Performances of this brake system on fixation text platform of 150 trains:common propagation rate of 180m/s ,emergency braking propagation rate of 280m/s,release propagation rate of more than 150m/s .

System Configuration

The general configuration of Air Brake System MAC:control valve MAC,KZF-1 empty/loaded changeover valve,Equalizing reservoir,254X305-A brake cylinder,Combined auxiliary and emergency reservoir,ZT3-500 slack adjuster,combined dirt collector and branch pipe cut-out cock,angle cock ,air hose and Retainer valve etc.

Name

Control Valve MAC

Functions

Control Valve MAC is the key part of air brake system, to control brake system to generate inflation, braking, ease and other functions

Technical parameters
  • Working temperature:-40~66℃
  • level pressure:70psi
  • The pressure of brake cylinder:reduced pressure 25psi,brake cylinder of 48~52psi
  • Release time:brake cylinder pressure release from 50psi to 5psi for 21~25s
  • Emergency brake :the pressure of brake cylinder is 12~18psi within 1.5s ;to reach 90% of the max pressure within 8~10s,which must be 15~20% more than the common full braking .
Material Science

aluminum-alloy

  • Name

    Control Valve MAC

    Functions

    Control Valve MAC is the key part of air brake system, to control brake system to generate inflation, braking, ease and other functions

    Technical parameters
    • Working temperature:-40~66℃
    • level pressure:70psi
    • The pressure of brake cylinder:reduced pressure 25psi,brake cylinder of 48~52psi
    • Release time:brake cylinder pressure release from 50psi to 5psi for 21~25s
    • Emergency brake :the pressure of brake cylinder is 12~18psi within 1.5s ;to reach 90% of the max pressure within 8~10s,which must be 15~20% more than the common full braking .
    Material Science

    aluminum-alloy

    Control Valve MAC
  • Name

    Type 150A Air Control Valve

    Functions

    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
    • Working temperature:-50~70℃
    • level pressure:70psi
    • The pressure of brake cylinder:reduced pressure 25psi,brake cylinder of 48~52psi
    • Release time:brake cylinder pressure release from 50psi to 5psi for 21~25s
    • Emergency brake :the pressure of brake cylinder is 12~18psi within 1.5s ;to reach 90% of the max pressure within 8~10s,which must be 15~20% more than the common full braking .
    Material Science

    aluminum-alloy

    Type 150A Air Control Valve
  • Name

    KZF-1 empty/loaded changeover valve

    Functions

    According to the load state of the vehicle to provide two kinds of pressure of controlling signals to the MAC distributing value. one is "empty",the other is "loaded ".

    Technical parameters
    • Working temperature:-40~66℃
    • level pressure:70psi
    • The pressure of brake cylinder:reduced pressure 25psi,brake cylinder of 48~52psi
    • Release time:brake cylinder pressure release from 50psi to 5psi for 21~25s
    • Emergency brake :the pressure of brake cylinder is 12~18psi within 1.5s ;to reach 90% of the max pressure within 8~10s,which must be 15~20% more than the common full braking
    • The pressure of brake cylinder : 50%2psi of the load.
    Material Science

    aluminum-alloy

    KZF-1 empty/loaded changeover valve
  • Name

    ZT3-500 Slack Adjuste

    Functions

    Type ZT3-500 Slack Adjuster can automatically shorten and stretch due to worn-out or replacement of the brake shoe,to ensure the distance of the brake shoe and the wheel tread surface remain unchanged during the train operating

    Technical parameters
    • Working temperature:-40~66℃
    Material Science

    High-quality carbon steel

    ZT3-500 Slack Adjuste
  • Name

    Brake cylinder

    Functions

    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 .

    Technical parameters
    • Working temperature:-40~66℃
    • The diameter diameter:254mm
    • Piston maximum stroke:305mm
    Material Science

    High-quality carbon steel

    Brake cylinder
  • Name

    Combined auxiliary and emergency reservoir

    Functions

    auxiliary reservoir and emergency reservoir together .The capacity of the auxiliary reservoir is 2500, and the emergency reservoir 3500 .

    Technical parameters
    • Working temperature:-40~66℃
    • The maximum allowable working pressure of combined auxiliary and emergency reservoir is 150psi.
    Material Science

    High-quality carbon steel

    Combined auxiliary and emergency reservoir
  • Name

    Angle Cock

    Functions

    The angle cock is used to close the air brake device in the vehicle and empty the the compressed air in hose connector

    Technical parameters
    • Working temperature:-40~66℃
    Material Science

    Cast iron

    Angle Cock
  • Name

    Air hose

    Functions

    Air hose is used to connect the train pipe.

    Technical parameters
    • Working temperature:-40~66℃
    Material Science

    Cast iron and rubber

    Air hose
  • Name

    combined dirt collector and branch pipe cut-out cock

    Functions

    combined dirt collector and branch pipe cut-out cock is used to open or close the passage between the brake pipe and control valve .

    Technical parameters
    • Working temperature:-40~66℃
    Material Science

    Cast iron

    combined dirt collector and branch pipe cut-out cock
  • Name

    Retainer valve

    Functions

    Holding the valve hand to rotate through the pressure, the retainer valve has three different function positions to control the pressure exhaust velocity of the brake cylinder during releasing .

    Technical parameters
    • Working temperature:-40~66℃
    • EX(direct exhaust position):no more than 3S from 70psi to 10psi.
    • HP(High pressure holding position):about 33~43s from 60 psi to 40 psi
    • SD(slow exhaust position):about 17~22s from 60psi to 40 psi.
    Material Science

    Cast iron

    Retainer valve