ISO 9905:1994

Name: ISO 9905:1994 — Technical specifications for centrifugal pumps — Class I
SKU: ISO 9905:1994
Price: 129600 RUB
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Technical specifications for centrifugal pumps — Class I

Название (английский):

ISO 9905:1994

Technical specifications for centrifugal pumps — Class I

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 72
Дата публикации:: 5 мая 1994 г.
Издание:: ISO IS 9905 edition 1 version 1
ICS:: 23.080

Тип поставки:

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Язык документа:

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Срок поставки:12 раб. дн. (перевод)

Цена:129 600 ₽

Описание (английский):

Consists of a basic text covering general requirements. The technical requirements refer only to the pump unit. Includes design features concerned with installation, maintenance and safety of such pumps, including baseplate, coupling and auxiliary piping. The selection of the class to be used is made in accordance with the technical requirements for the application for which the pump is intended. The class chosen is to be agreed between purchaser and manufacturer/supplier.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 9905:1994 - Technical specifications for centrifugal pumps - Class I defines the most severe (highest duty) set of requirements for centrifugal pump units. The standard covers the pump unit only and focuses on design, materials, installation, maintenance and safety aspects relevant to heavy-duty industrial service. It excludes storage pumps and requires the purchaser and manufacturer/supplier to agree the appropriate class (I, II, III) for the intended application.

Key topics and requirements

Scope and class selection: Class I is the most stringent; the class chosen must match the application and be agreed between purchaser and supplier.

Design requirements: Detailed definitions and design guidance for pump casing types (double casing, barrel casing), shaft characteristics (runout, deflection), radial/axial loads, bearings and allowable speeds.

Sealing and auxiliaries: Guidance on mechanical seals, circulation/flush arrangements, barrier liquids, throttle/throat bushes and examples of seal arrangements (Annexes F–G).

Materials: Specification of wetted parts, corrosion allowance and references to material standards (Annex J).

Performance and operating limits: Rated conditions, allowable operating range, NPSH considerations, maximum inlet/outlet pressures and temperatures.

Inspection, testing and documentation: Shop inspection and tests, preparation for dispatch, and post-order documentation requirements. Annexes include a pump data sheet (Annex A), enquiry/purchase order guidance (Annex C), and check-list (Annex K).

Responsibilities and safety: Statements on purchaser vs supplier responsibilities, and the need to account for field-specific safety requirements.

Applications and users

ISO 9905:1994 is intended for specification and procurement of heavy-duty centrifugal pumps in industries where reliability and stringent operating conditions are critical, such as:

Oil refineries and petrochemical plants

Chemical processing and power generation

Heavy industrial pumping systems requiring strict vibration, sealing and pressure controls

Primary users:

Pump manufacturers and designers specifying Class I units

Procurement and engineering teams preparing enquiries and purchase orders

Field engineers, maintenance and inspection personnel implementing installation, testing and commissioning procedures

Related standards

ISO 5199 - Centrifugal pumps: Class II requirements (moderate duty)

ISO 9908 - Centrifugal pumps: Class III requirements (least severe)

Normative references within ISO 9905 include various ISO standards on threads, bearings, flanges and testing codes (e.g., ISO 2548 / ISO 3555 acceptance test codes).

ISO 9905:1994 remains a practical reference for writing pump specifications, ensuring reliable pump selection, and aligning manufacturer deliverables with purchaser expectations for high-duty centrifugal pump applications.

ISO 9905:1994

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

BS EN ISO 5199:2002

Technical specifications for centrifugal pumps. Class II

ISO 9908:1993

Technical specifications for centrifugal pumps — Class III

ISO 2548:1973

Centrifugal, mixed flow and axial pumps — Code for acceptance tests — Class C

ISO 3555:1977

Centrifugal, mixed flow and axial pumps — Code for acceptance tests — Class B