ISO 21630 PDF

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ISO Pumps — Testing — Submersible mixers for wastewater and similar applications. MIXER TESTING PROCEDURE system for mixers testing, complying to norm ISO The system above descrive, once assembled, is lifted. Purchase your copy of BS ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.

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Search A-Z Suche nach. The positioning of the mixer including installation accessories is performed in such a way that it is correctly orientated before being lowered into its working position in a mounting bracket.

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BS ISO – Pumps. Testing. Submersible mixers for wastewater and similar applications

A mixer can be withdrawn from the tank for repair and maintenance work at any time. The propellers are designed with fibre-repellent, self-cleaning blades with backward curved incidence edges and are made of grey cast iron, stainless steel or a synthetic material depending on the fluid to be handled. The Amber document status indicator indicates that some caution is needed when using this document – it is either: Mixers consist of the following components: Again there may be more recent versions of the document.


Mixers are sealed to prevent ingress of water and come either in a close-coupled design or with gear unit. Mixers are designed for stationary installation on the tank floor or tank wall, or for pedestal mounting.

Mixers are used for homogenising, emulsifying, dispersing, suspending and flow generation. Mixers are installed via a guide bracket fitted to the mixer; it allows the submersible mixer to be lowered into the tank along a guide rail. Establishes guarantees, tests, analysis, 216300 of thrust and measurement of mixer electric power uptake.

The bearings used are maintenance-free rolling element bearings. The applications and wide range of hydraulic tasks to be fulfilled by mixers entail different requirements for these machines.

Other mixer types are driven isi dry-installed standard motors and medium-exposed shafts. Specific propeller orientation helps create a circumferential flow. They are driven by three-phase asynchronous motors which are safe to run dry. By continuing to browse the web site you consent to the use of cookies.

Standards Catalogue

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. Mechanical seals are used for sealing on both the product side and the drive end. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.


Appropriately designed installation equipment ensures that the forces developing during operation are transmitted to the tank floor. Document Status Indicators The Green document status indicator indicates that the document is: Main hydraulic tasks Introducing and mixing various gases, liquids or solid substances into a fluid Preventing conglomeration of sludge flakes Circulating phase mixtures Preventing sedimentation in the case of insufficient fluid flow velocity in the tank Aligning the mixer to break up floating sludge layers The applications and wide range of hydraulic tasks to be fulfilled by mixers entail different requirements for these machines.

Mixers are blending devices used in process engineering. If required, several mixers should be installed in a tank. Want access to British Standards? Mixer Mixers are blending devices used in process engineering. Free to use BIM project management tool provides step-by-step help to define, manage and validate responsibility for information development and delivery at each stage of the asset life cycle in level 2 BIM projects.