

Emergency Relay Valve
Part no.
KN30100
item status
Active
Product line
Haldex
Emergency Relay Valve , Suitable for pre-121 trailers, converter dollies or exempt trailers., Has automatic bleed down feature., Approximate Weight 3 lbs., FOR USE IN AIR HYDRAULIC SYSTEMS ONLY - DO NOT USE THEM TO CONTROL SPRING BRAKESNotes
- 3/8"-18 auxiliary reservoir port on bottom of valve drilled and tapped for use in air hydraulic systems. Do not use them to control spring brakes., Repair Kit use part number RN10HL.

Technical specs
Service Inlet | 1/4" |
Emergency Inlet | 1/4" |
Delivery (4) | 1/4" |
Auxiliary Reservoir | Plugged |
Reservoir | 3/4" |
Crack Pressure | 3.0 PSI |
Remarks | See Notes |
OEM Part Number | N4301A |
Approximate Weight | 3 lbs. |