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Standard ČSN EN ISO 5167-2 1.12.2023 preview

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ČSN EN ISO 5167-2 (257710)

Measurement of liquid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates

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STANDARD published on 1.12.2023


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The information about the standard:

Designation standards: ČSN EN ISO 5167-2
Classification mark: 257710
Catalog number: 518261
Publication date standards: 1.12.2023
SKU: NS-1159571
The number of pages: 56
Approximate weight : 168 g (0.37 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Flow in closed conduits

Annotation of standard text ČSN EN ISO 5167-2 (257710):

Tento dokument specifikuje geometrii a způsob použití (instalační a provozní podmínky) clonových desek, když jsou vloženy do potrubí, které je v plném provozu, aby se určila rychlost proudění tekutiny proudící v potrubí. Tento dokument také poskytuje základní informace pro výpočet průtoku a je použitelný ve spojení s požadavky uvedenými v ISO 5167-1. Tento dokument je použitelný pro primární zařízení s clonou používanou s přírubovými tlakovými odbočkami nebo s rohovými tlakovými odbočkami nebo s tlakovými odbočkami D a D/2. Ostatní tlakové odběry, jako je "vena contracta" a potrubní odběry, nejsou v tomto dokumentu zahrnuty. Tento dokument je použitelný pouze pro proudění, které zůstává podzvukové v celém měřicím úseku a kde lze kapalinu považovat za jednofázovou. Neplatí pro měření pulzujícího průtoku [1]. Nevztahuje se na použití clon ve velikostech trubek menších než 50 mm nebo větších než 1 000 mm nebo tam, kde jsou Reynoldsova čísla trubek nižší než 5 000

Preview of the standard ČSN EN ISO 5167-2 (257710)

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