A.R.I. D-060-C EN - Manual

TROUBLE SHOOTING D-060-C
SYMPTOM CAUSE CORRECTIVE ACTION
Paint chipped off and
valve rejected by
customer The valve was thrown around in shipping or the
packing was broken and the paint will crack to the
metal base. We recommend the local rep find matching paint
for touch-up. If necessary return valve to ARI for
replacement.
Valve leaking from
automatic S-050-C This may occur at start-up of a new system if the
contractor did not flush the line before startup.
There is some debris chamber of the rolling seal. Instruct the end user to open the S-050-C and clean it out,
and put it back in service. This requires ability of the Rep to
explain, or to this for the customer
.
Flange bolt pattern does
match pipe connection. 1) The flange is Multi-standard and the customer is
not familiar with this bolt pattern.
2) The wrong flange was sent from factory. Inquire as to valve size, to determine if the flange is multi-
standard. If so explain to customer.
If the flange is not multi-standard, obtain template of bolt
pattern with dimensions from the customer, in order to
determine ASA standard. Replace valve as needed.
Valve slams shut when
pumps start The line pressure from the pump start up creates
greater pressure under the valve and the float is
closed by differently air pressure, instead of by
water. We recommend using a NS, or a larger valve.
We recommend ARIavCAD analysis of system.
Check if the S-050-C continues to release air after the
kinetic float shuts, and pass all information on to ARI for
determining correct valve.
Float full of water and
valve does not seal Defect in float weld
Check line pressures and water hammer problems with the
end user, and replace the float. Recommend the poly-
carbonate float. Or NS valve.
Valve leaking from
middle seal, between
body and cover. O-ring not in place, or the sealing disc is not in
place in the top cover.
This occurs when the valve has been opened
before installation, or if there is a defect in the
casting.
Adjust seal to set in place.
Check the o-ring seal, and sealing disc of the float assembly
for damage.
If damaged - replace valve.
Valve does not close
and water is flowing out. Valve is flooded at start-up by high pressure
differential and drowns the float. Check variable speed pumps sequence.
This may affect the line pressure under the valve.
Also this phenomenon can occur if the pipeline connection
is smaller than the orifice of the valve.