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Bergen KVG gas engine

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New Bergen KVG G4 gas supply valve 418654, used — Manufacturer: Bergen engines, Model: Bergen KVG / KVGS G4 (part no. 418654 covers G2–G4), Manufacturers part number: 418654, Performance specification: Used – from Bergen KVGS-12 G4 engine no. 20047 (upgraded to G4 by Rolls-Royce 2009), Fuel Type: GAS, Other: Rocker arm operated, opens after inlet valve opening and exhaust valve closing (dead stroke). Double spindle seal with drain, Drawing number: 756/97 (instruction 7225, cylinder head item 21) View larger
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Bergen KVG G4 gas supply valve 418654, used

BERGENKVG41865420047

Used

Bergen KVG G4 gas supply valve, Rolls-Royce part no. 418654, used.

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Data sheet

Manufacturer Bergen engines
Model Bergen KVG / KVGS G4 (part no. 418654 covers G2–G4)
Manufacturers part number 418654
Performance specification Used – from Bergen KVGS-12 G4 engine no. 20047 (upgraded to G4 by Rolls-Royce 2009)
Fuel Type GAS
Other Rocker arm operated, opens after inlet valve opening and exhaust valve closing (dead stroke). Double spindle seal with drain
Drawing number 756/97 (instruction 7225, cylinder head item 21)

More info

Gas supply valve (gas admission valve) for Bergen / Rolls-Royce KVG / KVGS lean burn gas engines, G4 version. Rolls-Royce part no. 418654 (gas supply valve G2–G4), Bergen drawing 756/97. One valve per cylinder head.

The valve is opened and closed by a rocker arm connected to the air (inlet) valve rocker arm. Because of a «dead stroke» it opens for the gas supply after the inlet valve has opened and after the exhaust valve has closed. The valve spindle has a double seal with a drain in between, led to a collecting pipe. The upper sealing ring is turned upside down relative to the two lower rings.

Parts: flange bearing, discharge ring, sealing rings, O-rings, cross arm, packing bush, cap, distance ring, helical spring, gas supply valve spindle and valve housing.

Used, from a Bergen KVGS-12 G4 lean burn biogas engine, engine no. 20047, built 1995, totally overhauled and upgraded to G4 by Rolls-Royce in 2009 and maintained by Rolls-Royce under service contract since new. The engine is being dismantled for spare parts. The photos show a factory overhauled valve of the same part number.

A factory overhauled valve 418654 is also available: Rolls-Royce Bergen gas valve 418654, factory refurbished.