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Air brake systems often require priority air management, and the Tectran Air Brake Pressure Protection Valve regulates downstream air supply to safeguard primary circuits. Rated at 15 SCFM at 100 psi, it controls airflow to auxiliary systems until sufficient pressure is available in the main reservoir. This function helps prevent secondary components from drawing air before the brake system reaches safe operating pressure. Commonly installed in commercial truck air systems, the Tectran WM778A supports proper air distribution sequencing without an inline filter.
| Notes | without In-Line Filter |
| Country of Origin (Primary) | CN |
| Harmonized Tariff Code (Schedule B) | 8481400000 |
| Harmonized Tariff Code (HTS) | 8481400000 |
| UPC | 00827030152925 |
| VMRS Code | 017009016 |
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