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VH500 Paddle Flow Switch

VH500 Paddle Flow Switch

1035

The SIKA VH500 paddle flow switch is modelled for applications such as cooling water monitoring, leak monitoring, and lubrication control. The SIKA VH 500 is placed with its paddle in flowing medium, which triggers the paddle. The resulting dynamic pressure causes the paddle to travel, which causes the actuation of integrated micro switches. SIKA flow switches monitor the flow of low-viscosity media in pipes. They offer a reliable solution for ensuring the minimum flow rate and thereby protecting high-quality systems and installations from damages. These flow switches work based on the well- established mechanical operating principles. Thanks to the different paddle lengths, the switch points of the paddle flow switches can be configured for a wide switching range.
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990.15 Flanged Process Connection Diaphragm Seal

990.15 Flanged Process Connection Diaphragm Seal

2282

Together with a block flange or a saddle flange, the WIKA 990.15 diaphragm seal forms a perfectly matched system. Through the process connection via block flanges or saddle flanges, compact assemblies can be optimally realised at the measuring point. Depending on customer requirements, the model 990.15 can be subsequently integrated into a process using the accessory models 910.19, 910.20 and 910.23. The process connection is designed as a flange connection. The measuring instrument is in a vertical position. Applications Specifically for connection with block flange or saddle flange and to combine with bourdon tube pressure gauges Suitable for corrosive, contaminated, hot or viscous pressure media Chemical and petrochemical industry
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990.24 Sterile Connection Diaphragm Seal

990.24 Sterile Connection Diaphragm Seal

2294

Due to their hygienic process connection, the WIKA 990.24 sterile connection diaphragm seals are particularly well suited for food production. With this diaphragm seal, pressure measuring instruments can be integrated, dead-space free, into a pipeline using a VARINLINE® access unit or in tanks using a connecting flange for VARINLINE® access units. The diaphragm seals can withstand the cleaning vapour temperatures occurring in the CIP and SIP processes and thus ensure a sterile connection between the medium to be measured and the diaphragm seal. Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary. For the material selection, WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an alternative, be electropolished.
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EXPD 920/924/932 Differential Pressostat

EXPD 920/924/932 Differential Pressostat

3989

The Trafag EXPD 920/924/932 ex differential pressostat electromechanical pressure switches provide high vibration resistance and switch point precision in combination with an extremely robust and durable design. This results in switches that can be operated for decades without requiring maintenance, even under harsh conditions. Various designs with bellows, membrane and piston sensors cover a wide variety of pressure ranges, media and load profiles for many different applications.
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Digital Pressure Gauge Type J

Digital Pressure Gauge Type J

4892

The SIKA Type J digital pressure gauge is suitable for both stationary and mobile measurement and display of pressure. The SIKA Type J digital pressure gauge can be used as a reference to explain the checking, adjustment and calibration of other pressure measurement devices directly on-site. PC connection and software Many digital pressure gauges have a serial interface port to allow measurement values and stored data to be transferred directly to a PC and documented. An inexpensive measurement data acquisition system can easily be assembled with suitable software and an interface converter. Processes can be readily monitored and analysed using the recorded and visualised measurements, and all data can be exported using standard programs such as Microsoft Excel. Remote control is also possible. Various software packages with extensive recording and display functions, logger and alarm evaluation as well as for calibration are available. Analogue output An electrical output signal enables remote display on a control console or in a control room as well as the connection of external recorders and indicating instruments. Relay output Digital pressure gauges allow limit contacts to be closed even at low pressures. There is no need for high actuation forces for magnetic spring or inductive contacts, which makes it easier to signal critical equipment conditions and perform supplementary control tasks.
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VZVA Positive Displacement Flow Sensor

VZVA Positive Displacement Flow Sensor

7830

SIKA's gearwheel type VZVA positive displacement flow sensor records volume flows of liquids with both high and changing viscosities. The high-precision sensors work according to the displacement principle. The high resolution combined with reliable measurement accuracy makes the sensors especially useful for applications involving the measurement of small and minimal volumes. A very precisely adjusted gear pair within the casing forms the measuring element. The inflowing medium causes the gear pair to rotate. Contactless sensors scan the rotary motion. Since each tooth generates a pulse, this results in a very high resolution. Consequently, even the smallest volumes can be measured or dosed precisely. The measurement unit contains two pick-offs that are circumferentially offset by ¼ of a tooth pitch to generate a two-channel flow-proportional frequency signal. Suitable processing of the signal provides a higher resolution and the option to identify the flow direction. The maximum pressure drop should not exceed 16 bar. This limits the measurement range of high viscosity media (see pressure drop diagrams). The measurement accuracy increases with an increase in viscosity of the media.
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VZGG Positive Displacement Flow Sensor

VZGG Positive Displacement Flow Sensor

7835

SIKA™s gearwheel type VZGG positive displacement flow sensor records volume flows of liquids with both high and changing viscosities. The high-precision sensors work according to the displacement principle. The high resolution combined with reliable measurement accuracy makes the sensors especially useful for applications involving the measurement of small and minimal volumes. A very precisely adjusted gear pair within the casing forms the measuring element. The inflowing medium causes the gear pair to rotate. Contactless sensors scan the rotary motion. Since each tooth generates a pulse, this results in a very high resolution. Consequently, even the smallest volumes can be measured or dosed precisely. The measurement unit contains two pick-offs that are circumferentially offset by ¼ of a tooth pitch to generate a two-channel flow-proportional frequency signal. Suitable processing of the signal provides a higher resolution and the option to identify the flow direction. The maximum pressure drop should not exceed 16 bar. This limits the measurement range of high viscosity media (see pressure drop diagrams). The measurement accuracy increases with an increase in viscosity of the media.
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