The use of ethylene and propylene glycol in a mixture ratio of 25 - 50% by volume [%] is permitted.

No hemp should be used for thread sealing because the ammonia contained in hemp can damage the brass.

It is recommended to use sealing strip.

EPDM seals are swollen by mineral oils or lubricants containing mineral oil and thus lead to failure of the EPDM seals.

For frost and corrosion protection agents based on ethylene and propylene glycol can be found in the manufacturer’s documentation.

Field of application

The Pressure Independent Balancing Control Valve (PIBCV) is used in all heating and cooling systems with circulation pumps.

The valve automatically maintains flow to the required part of the system constant at the set rate by measuring and immediately adjusting to any variation in pressure.

The valve settings directly affect the volumetric flow through the valve.

It is thus possible to set the maximum flow rate based on the flow chart when the valve is fitted.

This allows for the balancing of heating circuits, cooling water systems, ceiling cooling and heating panels, air heaters, etc. without any need to first assess the pressure variations in the system.

System flushing

If it is necessary to flush the system in the direction opposite to the direction of valve´s operation, it is important to take into account the maximum allowed differential pressure on the valve for backflushing, equal to 300 kPa.

The volume flow during backflushing should be a maximum of three times the nominal flow rate.