98 EUCLID SUSPENSION FIELD MANUAL
HEIGHT CONTROL VALVE SELECTION PROCESS
Three steps are required to determine the proper valve:
Step 1: Determine if a dump valve is required,
Step 2: Select the valve manufacturer and model and
Step 3: Choose the proper arm length, mounting style and brackets.
STEP 1 – DETERMINE THE TYPE OF VALVE THAT IS REQUIRED. DOES THE HCV ALSO NEED TO DUMP
AIR TO THE AIR SPRINGS WHEN EITHER:
A. An actuation button is pushed on the dash or in some other location.
B. The air is removed from the brake system thereby locking the spring brakes.
IS A DUMP STYLE VALVE REQUIRED?
Does the HCV dump air to the
air springs when an actuation
button is pushed on the dash
or in some other location?
A "Dump when air is applied"
HCV is required.
Does the HCV dump air to the
air springs when air is removed
from the brake system thereby
locking the spring brakes?
A "Dump when air is removed"
HCV is required.
A " No Dump" HCV is required.
YES NO
Height Control Valve
Selection Process
