DELTAFLUID - Measuring up to your expectations

A spectacle blind consists of a spade and a spacer which are manufactured for the purpose of installation in one piece. It is used as a safety device to isolate a particular section of pipe or equipment when this section or this equipment is to be inspected or decommissioned. It is different from a valve in the sense that the obturator is considered an isolation device. Depending on the size and class of flanges, it will be more suitable to offer two separate components (spade and spacer) instead of a spectacle blind to limit weight and avoid handling heavy parts.

Instrumentation accessory for setting and commissioning the measuring instrument A manifold is mounted to the interface between the pressure taps and the transmitter. It is used to isolate the transmitter in case of intervention on the pipe. It also allows you to reset the zero of the transmitter or purge the impulse taps.

The flanges on the measuring elements and the piping allow easy assembly and disassembly unlike the welded assembly. Different types of flanges are available to meet all standards, all requirements in all areas of activity. Orifice flanges : They are used for flow measurement with orifice plates. They allow, thanks to the integrated pressure taps, to recover high and low pressure (Δp).

Different types of pressure transmitters exist: differential pressure transmitter for measuring a pressure difference ΔP but also a relative or absolute pressure transmitter. For more specific applications, it will be necessary to use: a differential pressure transmitter to correct variations of pressure and temperature of a gas two transmitters for the same differential pressure flow element to increase the measuring range For more details on these cases, please see the Frequently Asked Questions tab on this page.

A flow straightener greatly reduces disturbances in a flow while a conditioner reduces disturbances and also allows a good redistribution of the speed profile, at each point of the section of the pipe. Thus, these devices make it possible to reduce the upstream straight lengths and to improve the measurement accuracy in the case of a flow measurement. They are therefore to be positioned between a pipe fitting (elbow, reduction, etc.) and a flow measurement element while respecting the distances specified in the standard.

For steam applications, condensate pots are essential. They are used to condense the fluid upstream of the differential pressure transmitter. Installed at the same height, they allow accurate measurement by maintaining a constant condensate height in the impulse lines above the differential pressure transmitter. The condensation pot can also be used to protect the transmitter in the case of a flow measurement of a corrosive / aggressive fluid. In this case we speak of separation pots. For more information, see the Frequently Asked Questions tab on this page.

A flow indicator or flow monitor makes it possible to visually observe the passage of a fluid. It is therefore equipped with a transparent window to visualize the flowing fluid. In the case of transparent fluids, it is also equipped with fins that can be seen rotating in the presence of a flow.