Tour & Andersson Ab

Imi Hydronic Engineering International Sa

Ta Hydronics Ab

Daniel Jilderos

Anders Helstad

Anders Engelbrektsson

Claus Thybo

A valve for adjusting a fluid flow. The valve includes a valve body, a flow having an inlet and an outlet located downstream of the inlet, a flow adjustment arrangement for adjusting the flow of liquid from the inlet to the outlet, wherein liquid upstream of the flow adjustment arrangement but downstream of the inlet has an upstream pressure, and liquid downstream of said flow adjustment arrangement but upstream of the outlet has a downstream pressure, a stationary differential pressure sensor configured to measure a pressure difference between the upstream pressure and the downstream pressure, and a pair of pressure ports for enabling temporary connection of a non-stationary differential pressure sensor for measuring the pressure difference between the upstream pressure and the downstream pressure. Also a method for use with such a valve.

Valve for adjusting a fluid flow and methods for use in connection with such a valve

A measurement module for measuring the differential pressure between a first and second connection point arranged in a transport line for a fluid. The measurement module includes a first connection line and a second connection line, a differential pressure sensor arranged in fluid communication with said first and second connection line, and a valve arranged in fluid communication with said first and second connection line, wherein compared to said valve, said differential pressure sensor is arranged closer to the first and second connection point.

Differential pressure measurement module with improved sensor protection

A valve having a balancing function for a fluid distribution system. A valve closing member is movable between a closed position and a fully opened position. An actuation device is provided for changing the position of the valve closing member. A control unit is provided and includes an electronic memory adapted to receive and store an opening limitation value, the opening limitation value being representative of a selected intermediate position between the closed position and the fully opened position of the valve closing member, wherein the control unit controls the actuation device to limit the movement of the valve closing member to positions from the closed position to the selected intermediate position. Also, a valve system and to a method of operating a valve.

Valve and a method of operating a valve

The invention relates to a valve having a balancing function for a fluid distribution system. A valve closing member is movable between a closed position and a fully opened position. An actuation device is provided for changing the position of the valve closing member. A control unit is provided and comprises an electronic memory adapted to receive and store an opening limitation value, said opening limitation value being representative of a selected intermediate position between said closed position and said fully opened position of the valve closing member, wherein the control unit controls the actuation device to limit the movement of the valve closing member to positions from said closed position to said selected intermediate position. The invention also relates to a valve system and to a method of operating a valve.

A valve assembly () for measuring differential pressures in a fluid system where the valve assembly includes a differential pressure sensor () for registration of differential pressures, a first cavity () with a calibrating cone () displaceable between measuring and a zero point calibration/flushing position. The valve assembly () includes a valve body () with two connections () and a second cavity () arranged with a safety valve cone () which protects the differential pressure sensor (). The safety valve cone (), by differential pressures higher than a dimensioned value, is moved in a direction towards the low pressure side and, as a result, a passage between high and low pressure side is opened, from one connection () to the other connection () via the second cavity () and via provided cavities () and recesses () in the safety valve cone (), whereby a pressure equalizing occurs.

Valve assembly for a differential pressure sensor with safety valve

A device for measuring pressure or temperature in a heating or a cooling system and where the device is a measuring needle complete () comprising a measuring needle housing () with one cavity () and a spring-loaded non return valve (), where the non return valve, in a measuring position, has an open communication with the probe () via the measuring needle housing and a hose nipple, via a hose, to a measuring instrument. This open communication is closed immediately as soon as the measuring is completed and the measuring needle () is removed from the measuring nipple. After measuring, due to this immediate closing, leakage of the enclosed fluid that exists in the complete measuring needle () and the measuring hose () is prevented.

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Boras, Sweden

Daniel Jilderos