Description
The circular constant volume regulator type CVR is a control
element which works independently of the pressure without
an external power supply. It can be regarded as a self-actuating
duct damper, as it delivers a required volume of air regardless
of changes in system pressure.
In consequence, the controller overcomes the need for system
balancing and ensures constant air flow in service.TheCVR
incorporates an adjustment device that allows to modify
manuallyon site the air-flow pre-adjusted at the factory.
Control
CVR regulator has an automatic mechanism, equipped with
a spring and a shock absorber system for avoid oscillations.
The inlet pressure balances the force of the spring and push
the blade to a defined position that finally controls the set volume
airflow.
Construction
The casing of the regulator is made from galvanized metal
sheet, incorporates a rolling rubber ring seals in both ends,
avoiding in such a way to have to spot or screw in a horizontal
assemblies, includes plastic type ABS.
Made of stainless steel AISI-304.CVR-IX regulator works
properly within a range of flow rates 10% lower than the regulator
in galvanized.
The regulator is also available in stainless steel or with a PUR
coating in all RAL colours, upon request it can be delivered
with an acoustic and thermal insulation film (CVR-D).
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