Overflow valves open only once the pressure ahead of them has reached a set level, so a reservoir fills in a defined order. This is what keeps the service brake circuits filling before the auxiliary ones on a multi-circuit system.

This category lists 18 Büyükdemir references cross-referenced against 31 original equipment numbers. The cross-reference tables cover Scania, Bosch, Volvo, MAN, DAF and Mercedes-Benz parts.

Most looked-up references in this group: Pressure Limiting Valve / Druckbegrenzungsventil 4-4030, Overflow Valve 1-1145, Overflow Valve 1-1069, Overflow Valve 1-1034, Overflow Valve 1-1052.

Manufactured by Büyükdemir Otomotiv in Istanbul, a producer of truck and trailer air system parts since 1957.

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Overflow Valve (Straight Union) 1-1049

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Overflow Valve 1 - 1054

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Overflow Valve 1-0034

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Overflow Valve 1-1034

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Overflow Valve 1-1050

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Overflow Valve 1-1051

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Overflow Valve 1-1052

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Overflow Valve 1-1056