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Hendrickson · Air System
HENVS-1128
In stock · ships from Knoxville
The Hendrickson VS-1128 (HENVS-1128) is a pressure protection valve for air brake systems on trailers with Hendrickson air ride suspension.
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Other applications
Other applications
Typically used one per trailer; may also fit other air brake systems requiring a pressure protection valve with 1/4-inch NPT ports and 70–75 psi set points.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It acts as a safety barrier, isolating the auxiliary air system from the primary brake system. If a major leak occurs in the auxiliary side, the valve automatically closes to preserve enough air pressure for safe braking. You typically replace it when it fails to open or close at the correct pressures, or if it sticks, causing air loss or compromised brake performance.
Part Number: HENVS-1128
VALVE, PRESSURE PROT.
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
