Shandong Shengyue Technology Development Co.,Ltd is one of the most professional exhaust brake butterfly valve fg9804540580 from sinotruk company manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
Exhaust Brake Butterfly Valve FG9804540580 FROM SINOTRUK COMPANY
Key Functions
1. Auxiliary Deceleration: When the vehicle descends a long slope or requires slowing down, the butterfly valve pneumatically closes the exhaust line, increasing exhaust backpressure on the pistons; this utilizes engine braking resistance to assist in decelerating the vehicle.
2. Reduced Brake Wear: Effectively minimizes frictional heat generation in the primary braking system (brake pads and drums), preventing brake fade caused by overheating.
3. Enhanced Driving Safety: Provides essential, sustained braking assistance for heavy-duty vehicles or light trucks.
Detailed Breakdown and Components
1. Pneumatic Piston Actuator: Receives pneumatic control signals and generates rotational torque via the pushrod.
2. Actuator Bracket: Secures the pneumatic cylinder and provides mounting points for the heat shield or control wiring harness.
3. Drive Plate: Converts the linear motion of the pushrod into the rotational motion of the shaft to actuate the butterfly valve.
4. Butterfly Valve Flap: Located inside the valve body; it establishes exhaust backpressure by varying the effective flow area (EFA).
Related Installation Components
FG9804541670: Secondary Exhaust Pipe Assembly
FG9806540064: Muffler Clamp Assembly
LG9704540030: Exhaust Pipe Gasket
Common Failure Modes and Maintenance Recommendations
1. Carbon deposit-induced sticking: Soot from incomplete diesel combustion tends to accumulate between the butterfly valve shaft and the bushing, causing the valve plate to stick or fail to return fully to its position; symptoms include sluggish acceleration or the inability to disengage the exhaust brake.
2. Actuator cylinder leakage: The internal rubber seal of the control cylinder may age due to prolonged exposure to heat, resulting in insufficient thrust to close the butterfly valve tightly, which significantly weakens the exhaust braking effect.
3. Return spring fatigue/breakage: After frequent, long-term use, the external return spring may break; in the absence of air pressure, the valve plate may then vibrate abnormally and generate noise due to the impact of exhaust gases.
DETAILS
| DESCRIPTION | Exhaust Brake Butterfly Valve | PART NUMBER | FG9804540580 |
| WEIGHT | 5 kg | VOLUME | 300 mm × 220 mm × 120 mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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