Dosch - Model BLS 100 -Orifice Plates with Flange Taps

Blanking disk with attached grip label for direct installation between pipe flanges or orifice flanges (see below). Depending on the process conditions, it can be run as

• Standard orifice plate
• Quarter circle nozzle
• Segment cover
• Orifice plate with conical inlet
• Double cone diaphragm

Pressure taps may be positioned in the flange blade or in the pipeline. The distance to the orifice plate cannot be chosen freely. In special cases the pressure taps may be positioned as corner tapping in the flange blades.

You would like to have a complete package including orifice plate, pressure taps and inlet/outlet pipe? Then we recommend our meter runs!

The measuring uncertainty depends on the process conditions and amounts to approx. 0,5% – 1,2% of the discharge coefficient.

Orifice flanges are specially manufactured for the differential pressure flow measurement. The pressure tap bore holes are located at a specific distance in front of/behind the orifice plate. Typically, orifice flanges are manufactured according to ASME B16.36 or DIN 19214. We can supply other standards as well such as NORSOK or JIS.

We can offer a complete package including orifice flanges, shut-off valves and/or manifold.

Differential pressure tapping
A distinction is made between flange pressure tapping and pipeline tapping. The pressure is tapped at a defined distance from the panel. In special cases, the effective pressure can also be tapped in a standard-like manner as a corner tapping in the flange.

Would you like a complete package consisting of an orifice plate, differential pressure tapping and an inlet and outlet section? Then we recommend our meter runs !

Measurement uncertainty
Depending on the application, the measurement uncertainty is approx. 0.5% – 1.2% of the flow coefficient.

Orifice flanges
Orifice flanges are flanges specially developed for flow measurement based on the differential pressure principle. The pressures are tapped through a hole in the flange at a defined distance before and after the orifice plate. Orifice flanges are manufactured according to ASME B 16.36 or DIN 19214 as standard. Other standards (e.g. NORSOK, JIS) can also be considered.

Equipment
We would also be happy to supply you with the required orifice flanges, which already contain the pressure tapping lines.