GMW GMW16501 PDF

This specification covers light wall vacuum brake hoses for use in power braking systems of vehicles.

Note: This standard is based on SAE J1403 (Type LW Class B) and FMVSS 106.

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Material Description. Materials covered by this specification are divided into two "Types". It is possible for a hose to be approved to more than one "Type". "Type A" hose is suitable for use to temperatures of +125 °C continuous exposure and +150 °C excursion exposure. "Type B" hose is suitable for use to temperatures of +150 °C continuous exposure and +175 °C excursion exposure.

Construction. The hose shall consist of a smooth tube of ethylene propylene diene monomer (EPDM) elastomer reinforced with a ply or plies of braided, knit, spiral or woven polyester or other vendee approved fabric and furnished with a cover of EPDM elastomer. Hoses shall be black unless otherwise specified.

Hose shall conform to the dimensions and tolerances listed in Appendix A, Table A1.

The hose shall be legibly marked with the following information: symbol DOT, nominal inside diameter (expressed as fraction of inch); hose manufacturer's code identification; date code; the symbol VL; and the GM specification number (GMW16501). Such markings shall be printed parallel to the axis in white or blue block letters not less than 3 mm high and shall be repeated at intervals of 150 mm maximum. The symbol DOT constitutes certification by the hose manufacturer that the hose assembly conforms to FMVSS 106. The date code shall consist of 6 digits: The first 2 digits shall represent month (01 through 12) of the year, the next 2 shall represent the day of the month (01 through 31); and the last 2 shall be the last 2 digits of the year. In addition, each hose manufacturer shall incorporate into the construction of the hose identification yarn as assigned by the Rubber Manufacturers Association (RMA).

Material Identification and Marking. To properly define the hose, the material specification number (GMW16501) is to be referenced. The vacuum hose marking must conform to requirements specified in government regulations, such as United States of America Federal Motor Vehicle Safety Standard 106 (FMVSS 106). The vacuum hose must also meet requirements for vacuum brake hose marking specified in GMW16501.

For China usage, the supplier is responsible to contact the China Quality Certificate Center for CCC activities and ensure the vacuum hose/tubes meet the China Compulsory Certificate requirements (reference CNCA-02C-063:2005). All saleable parts shall have CCC markings after proper authorization (which includes both a "CCC" label and the related "GB16987" test standard). A copy of the certificate for the part shall be sent to GM engineering before PPAP. This applies to both production parts and parts for service.

Symbols. Not applicable.

Typical Applications. Vacuum Brake Hose.

Remarks. Not applicable.