Community and national rules and regulations and directives are a set of laws of performance required, that any products/services marketed within the EU countries must respect. The technical standards instead define the requirements that the manufacturer should apply in their products and services with voluntary nature, to obtain compliance.
NB: ITALMANOMETRI RESPECTS BOTH DIRECTIVES/REGULATIONS THAT
STANDARDS OF GOOD PRACTICE.
According to the Directive 97/23/CE, pressure gauges are classified as pressure accessories and in order to determine whether the CE symbol is required the following criteria must be evaluated:
– Bottom full scale pressure.
– Internal volume.
– Types of fluids for which pressure gauge is projected.
Characteristics of Italmanometri’s pressure gauges are the following:
– Pressure of bottom scale: from -1 bar until 1,000 bars.
– Internal volume: < 0.1 l.
– Types of fluids for which pressure gauge is designed: liquids and gas.
According to the Directive A.2014/68/UE 2014.05.15 PeA, our pressure gauges are not subject to obligatory CE marking and have to be designed and manufactured complying with current EU Countries technology rules aiming to guarantee safety during operation.
Exception: all pressure gauges designed to control pressure of dangerous gasses listed in Directive 67/548/EC are subject to obligatory CE marking if their bottom scale pressure doesn’t exceed 200 bars.
HARMONISED STANDARDS OF GOOD PRACTICE
Bourdon tube pressure gauges. Dimensions, metrology and assay. Aim and application field: this European regulation defines the requirements of pressure, vacuum and compound gauges with Bourdon tube circular, spiral or helical indicators, of nominal dimensions between 40 and 250, used for the measurement of relative pressures until 1,600 bars.
Recommendations for choosing and installing a pressure gauge.
Membrane and capsule pressure gauges. Dimensions, metrology, requirements and assay
EN 837 or UNI EN ISO 5171: 2010
Pressure gauges used in soldering, cutting and similar processes.
Object and application field: this European regulation defines requirements of Bourdon type pressure gauges used in soldering, cutting and similar processes for measuring compressed gas pressure up to 300 bars, melted acetylene and liquefied gas pressure.
In all above cases, U.E. Directives or Regulations will be printed on the device, either with the CE symbol (in case of U.E. Directives) or by indicating the Regulation number (for example EN-837 or UNI EN ISO 5171).
PED DIRECTIVES (Pressure Equipment Directive)
European Directives regulating pressure measurement instruments became effective as of 30.05.2002. Here is a summary of the instructions for this purpose: Pressure gauges with bottom scale values exceeding 0.5 bar, being maximum pressure components, must comply with DGRL A.2014/68/UE 2014.05.15 PeA (regulations for pressure instruments) and related requirements.