Technical Data Mass Flow Measurement Grid

Product catalog summary

Overview: This document provides technical specifications and ordering information for mass flow measurement grids in both circular and rectangular designs. These grids are used for measuring the flow of non-aggressive, non-explosive gaseous media.

Design Specifications:

Circular Design: Inside duct length of 100 mm, wall thickness of 2-3 mm, optional flange according to EN 12220.
Rectangular Design: Flanged at the duct, pneumatic connection on the side marked by air duct height.

Material and Construction: Made from stainless steel, with other materials available upon request. Mounting options include flange connection, welded, or clamping connection for "Jacobrohr".

Measurement Characteristics:

Suitable for gaseous media with known density.
System pressure range: -0.5 to +0.5 bar.
Standard repetition accuracy: ≤ ±1% of measurement value.
Calibrated grids accuracy: ≤ ±1% on test bench, ≤ ±2% on site.
Calculated grids accuracy: ≤ ±5% of measurement value.

Environmental Conditions: Operating temperature range from 20°C to +400°C, with other ranges available upon request.

Pressure Loss: Evaluated based on grid size and documented upon order.

Inlet Tolerances: Tolerances are based on the type of obstacle and measurement grid size, with examples provided for calculation.

Ordering Information:

Circular Grids: Available in sizes from Ø 300 mm to Ø 1600 mm, with or without flange.
Rectangular Grids: Available in various height and width combinations, with custom sizes available upon request.

Contact Information: LAMTEC Meß- und Regeltechnik für Feuerungen GmbH & Co. KG, Walldorf, Germany. Phone and fax numbers, as well as email and website, are provided for further inquiries.

Catalog excerpts

Technical Data Mass Flow Measurement Grid-1

Technical Data Mass Flow Measurement Grid Fig. 1-1 Example of mass flow measurement grid in circular de- Fig. 1-2 Example of mass flow measurement grid in rectangular design with flange sign with flange Fig. 1-3 Dimensional drawing of circular version (front/side view) Fig. 1-4 Dimensional drawing of rectangular version (front/side view) Connecting pipe Welded cutting ring fitting G1/4" Measuring tube Measuring tube Nominal diameter (

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The tolerances are based on the measuring value Calculation formular: Inlet E = Tolerance multiplier ’ Type of obstacle x mass flow measurement grid 0 (circular) or diameter (square or rectagular) Calculation example of the Inlet For type of obstacle ’Rectangular deflection’ with a tolerance of +/- 1 %; Mass flow measurement grid DN 300 mm E = 6 x 300 mm E = 1800 mm For type of obstacle ’Elbow 30 °’ with a tolerance ofz +/- 3 %; Mass floe measurement grid 800 mm x 300 mm E = 2 x 854 mm E = 1708 mm Outlet A shall consist of the length of the diameter/diagonal of the mass flow measurement grid...

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other sizes on reques

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The information in this publication is subject to technical changes. LAMTEC Meft- und Regeltechnik fur Feuerungen GmbH & Co. KG WiesenstralJe 6 D-69190 Walldorf Phone: +49 (0) 6227 / 6052-0 Fax: +49 (0) 6227 / 6052-57 e-mail:[email protected] www.lamtec.de Presented by: Print no. DLT8000-15-aEN-020 Printed in Germany

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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