The exhaust butterfly valve assembly is a critical component of the heavy-duty engine's auxiliary braking system (exhaust brake). It restricts exhaust gas flow to increase cylinder backpressure, providing controlled deceleration and reducing wear on the service brake liners during prolonged descents.
| Feature | Specification |
| Product Name | Exhaust Butterfly Valve Assembly (排气制动蝶阀总成) |
| OEM Part Number | DZ91189180002 / DZ91189180002 |
| Vehicle Application | Shacman Delong X3000, X5000, X6000 Series |
| Engine Compatibility | Weichai WP10, WP12, WP13 Series Engines |
| Material | High-Temperature Resistant Cast Iron / Alloy Steel |
| Operation Type | Pneumatic (Air Actuated) |
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