Prefabricated venturi transitions in all diameters Material PPs Threaded or flanged version made short and long version available ​​ Manufactured to DIN ISO 5167 Inexpensive local display for all ventilation applications Combination with our differential pressure gauges and transmitters possible The venturi tube is a primary element for flow metering in tubings. The principle of the venturi tube allows for meterings with all media. The venturi tube described here is especially designed for air flow metering in ventilation channels. Mounting of the venturi tube in the installation has to be made using plug sockets with the corresponding lip seals. A version with flange connection can also be suppllied. The venturi tube is a one-piece extruded housing made of PP. High accuracy of fit and optimum centering is guaranteed with socket or flange connection on both sides. The venturi nozzle is made with an inlet profile as per ISA according to DIN EN ISO 5167. The flow which is important and favorable for meterin is achieved through the specific deformation process of the thermoplastic material. It allows for an exact fitting as well as for extremely smooth surfaces for ideal flow conditions without any costly rework. Short venturi tube The pressure relief valves have 4-5 individual bore holes in the cylindrical neck which open out into a ring chamber. For further evaluation, indicators (DA2000) with a scale in m³/h or measuring transducers (DS85 or DS200) for remote transmission of the measuring signal are available. The exact design of the indicators or the measuring transducers depends on the design data which are to be clarified beforehand. Specifications Design: Dimensions (mm) DN Discharge nozzle: mounting: 8 mm ø for connection of plastic hose socket connection, the counterparts are equipped with the corresponding lip seals Ambient temperature: 0...+80 °C Tubes with lip seals are available on request When ordering, please indicate the flow direction! plastic tubes, grey, made of PPs, accurate of fit with thermal deformation and welding up - down / down - up right - left / left - right Item no. Short venturi nozzle Material plastic PPs, grey Socket version MVR 160-K Flange version FVR 160-K Short venturi nozzle Material plastic PPs, grey Socket version MVR 200-K Flange version FVR 200-K Short venturi nozzle Material plastic PPs, grey Socket version MVR 250-K Flange version FVR 250-K Mounting bracket for DA2000, DS200 or DS85 Arthur Grillo GmbH • Am Sandbach 7 • 40878 Ratingen • phone 0 21 02 - 47 10 22 • fax 0 21 02 - 47 58 82 www.grillo-messgeraete.de/en • Email: [email protected] • web sh

VENTURI NOZZLE MVR / FVR for air measurement in pipelines Differential pressure characteristic of the venturi Short venturi tube, Flange version Dimensions (mm) for Flange version Dimensions (mm) for Socket version Arthur Grillo GmbH • Am Sandbach 7 • 40878 Ratingen • phone 0 21 02 - 47 10 22 • fax 0 21 02 - 47 58 82 www.grillo-messgeraete.de/en • Email: [email protected] • web shop: www.sensor-store.de

Arthur Grille Venturi tube with mit DA2000 Dimension for flange version Venturi nozzle, Socket version material plastic PPs, grey, Venturi nozzle, Flange version material plastic PPs, grey, When ordering, please indicate the flow up - down / down - up; right - left / left - right Selection diagram for volume measurement stations with built Venturi (DIN EN ISO 5167-1), long version

VENTURI NOZZLE MVR / FVR for air measurement in pipelines Item no. Venturi nozzle, Socket version Material galvanized steel VDM100, nominal diameter DN110 VDM125, nominal diameter DN125 VDM140, nominal diameter DN140 VDM150, nominal diameter DN150 VDM160, nominal diameter DN160 VDM180, nominal diameter DN180 VDM200, nominal diameter DN200 VDM224, nominal diameter DN224 VDM250, nominal diameter DN250 VDM280, nominal diameter DN280 VDM300, nominal diameter DN300 VDM315, nominal diameter DN315 VDM355, nominal diameter DN355 VDM400, nominal diameter DN400 ACCESSORIES Mounting bracket for DA2000,...