| Automatic overspeed air intake shut down (shut off) valves with automatic reset and integral engine air cleaner CHALWYN DF VALVES Simple cost effective fully automatic engine overspeed protection valves requiring no mechanical or electrical connections. Supplied complete with an integral engine air cleaner. Variants available to suit most small engine types requiring light or medium duty air cleaners. |
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| Other air intake valve options Simultaneous automatic shut down of diesel fuel supply Internal crankcase breather modifications |