Air Brake Valve Input-Output Characteristic Requirements
- Ground Vehicle Standard
- J1861_200701
- Revised
Scope
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a
Crack (opening) pressure or force. Crack pressure may be measured at the initial output pressure or as the pressure differential before output pressure exceeds 14 kPa (2 psi). Crack force may be measured at initial output pressure or before output pressure exceeds 14 kPa (2 psi).
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b
Pressure differential (input-output)
Rationale
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1.a. Added explanation to the crack pressure.
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1.1 Changed operating pressure from 120 psi to 135 psi to agree with SAE J1410.
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4.1.1 Deleted tolerance for pressure range from 6.9 to 27.6 kPa. Changed greater than 27.6 kPa to greater than 6.9 kPa.
Recommended Content
Ground Vehicle Standard | Air Brake Valve - Performance Requirements |
Ground Vehicle Standard | Labeling Air Brake Valves with Their Performance (Input-Output) Characteristics |
Ground Vehicle Standard | Air Brake Valve Input-Output Characteristic Requirements |
Data Sets - Support Documents
Issuing Committee
Truck and Bus Brake Supply and Control Components Committee
The Truck and Bus Supply and Control Components Committee of the Truck and Bus Brake and Advanced Driver Assistance Systems Steering Committee is responsible for developing, reviewing, and approving recommended practices, standards, and information reports related to air braked vehicles supply and components and their interfacing as utilized on trucks, tractor-trailers combinations and buses over 4,536 kilograms (10,000 lbs.) GVWR. The activities of this Committee include brake supply and control components and their interfacing, and is not, in any way, to duplicate efforts of any other Committees.
Reference
Number | Title |
---|---|
J1410_201607 | Air Brake Valve - Performance Requirements |
J1859_201606 | Test Procedures for Determining Air Brake Valve Input-Output Characteristics |
J1860_201606 | Labeling Air Brake Valves with Their Performance (Input-Output) Characteristics |