The Green document status indicator indicates that the document is: a current in the Construction Information Service and b the latest version - ie it does not have any other documents that replace or amend it and is promoted as a current document by the publisher. The Amber document status indicator indicates that some caution is needed when using this document - it is either: a current in the Construction Information Service but has a document or documents that replace or amend it, so please look at the "Newer Versions" tab or b not in the Construction Information Service but with another reason why it may be relevant to our customers such as being cited in NBS or in the Building Regulations Approved Documents. Again there may be more recent versions of the document. The Red document status indicator indicates that the document is an old version The document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at NBS.
|Published (Last):||10 November 2006|
|PDF File Size:||18.31 Mb|
|ePub File Size:||14.38 Mb|
|Price:||Free* [*Free Regsitration Required]|
X Electromagnetic Water Meters The Electromagnetic water meter Mag Meter does not have any moving parts and is ideal for potable and wastewater applications or any dirty liquid which is conductive or water based.
A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity. X Woltmann Turbine Helical Vane Meters Woltmann meters comprises of a rotor with helical blades inserted axially in the flow, much like a ducted fan; they can be considered a type of turbine flow meter.
They are commonly referred to as helix meters and are usually used to measure bulk flows. X Combination Water Meters Combination water meters comprises of a bulk Woltmann insert and a low-flow Volumetric insert or meter, flow is diverted between them by a by-pass valve that is set at a predetermined flow rate.
This type of approval demonstrates full compliance with the requirements of the regulations and bye-laws, provided the fitting is installed according to any conditions given with the approval.
It also details the test methods and marking provisions. X DNV-GL Type Approved Product Classification, verification, risk management, and technical advisory to the maritime industry on safety, enhanced performance, fuel efficiency, etc. They comprise safety, reliability and environmental requirements that vessels and other offshore mobile structures in international waters must comply with. DNV GL is authorized by maritime administrations to perform certification or verification on their behalf.
BS EN 837-2 Pressure Gauges Installation.pdf
BS EN 837-1:1998