WIKA

Primary flow elements

Primary flow elements for special requirements

Our portfolio of primary flow elements consists of orifice plates, meter runs, flow nozzles, venturi tubes, pitot tubes, wedge meters, and proprietary designs. All our primary flow elements are designed in accordance with the principles and requirements of international standards (ISO 5167/ISO TR 15377, ASME MFC, ASME PTC6, and ASME PTC 19.5). We offer calibration certificates in accordance with the ASME PTC6, ASME MFC 3Ma, and ASME PTC 19.5 as well as others by request. With our extensive product range, we are able to cover almost all industrial applications. Customized solutions can be developed to meet your specific needs.
FAQ
FAQ

Can multi-bore restriction orifices overcome cavitation when high pressure drops are required?

Multi-bore restriction orifices do not solve cavitation problems. However, multi-step type restriction orifices can provide a remedy here.

Is a calibration required with a primary flow element?

With primary flow elements that have been manufactured to the defined tolerances no calibration is required. A calibration is generally required for applications where a higher measurement accuracy is required, e.g. for custody transfer or performa ...

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What are restriction orifices for and when are they used?

Restriction orifices are used to achieve a controlled or restricted flow. They prevent a too high loading of the primary flow element, and also prevent the possibility of cavitation. Restriction orifices can also be used for controlling the pressur ...

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