Automatic top-up units
Automatic Top Up Unit (ATU) is used to compensate
for oil volume and pressure loss in API systems.
(ATUs) enable the automatic refilling or ‘topping
up’ of barrier fluid in API 682 type seal support
systems. A constant barrier fluid supply is
maintained at the correct pressure,
minimizingmaintenance and manual intervention. They
meet or exceed stringent customer specifications and
restrictive customer vendor lists for all
instrumentation, valves and controls.
An alternative to a manually mobile refilling unit,
an automatic make-up unit adds buffer or barrier
fluid to multiple systems as required.
ATU is recommended for use when calculations show
that frequent manual oil top ups would be needed.