ISO 5199:2002

Overview

ISO 5199:2002 - Technical specifications for centrifugal pumps - Class II - is an international standard that defines technical requirements for general-purpose centrifugal pumps. It covers single-stage and multistage, horizontal and vertical constructions, with any drive and installation, and is typical for pumps used in the chemical process industries. ISO 5199 focuses on design, materials, inspection and testing, installation and maintenance features relevant to pump performance, safety and interchangeability.

Key Topics

The standard addresses a comprehensive set of technical topics and requirements, including:

• Design requirements: rotor dynamics (critical speed, balance, vibration), pressure-containing parts, impeller design, wear rings, running clearances, shaft and shaft sleeves, bearings, couplings and baseplates.
• Sealing and auxiliaries: shaft sealing arrangements, auxiliary piping, and recommended piping for seals (informative annexes provide examples).
• Materials: selection, composition and repair considerations for wetted and pressure parts.
• Inspection and testing: shop inspection, acceptance tests and final inspection procedures to verify hydraulic performance and mechanical integrity.
• Preparation for dispatch: preservation, securing rotating parts, labelling and identification for transport and storage.
• Documentation and procurement: normative annexes include a pump data sheet (Annex A), enquiry/proposal/purchase order formats (Annex C), and post-order documentation (Annex D).
• Informative guidance: annexes on external forces and moments, seal arrangements, piping, designation examples and a purchaser checklist.

Applications and Who Uses It

ISO 5199 is intended for:

• Pump manufacturers and OEMs - to design and document Class II centrifugal pumps that meet broadly accepted technical criteria.
• Procurement and specification engineers - to prepare purchase orders and evaluate supplier proposals using the normative data sheet and procurement annexes.
• Plant engineers and maintenance teams - to ensure installation, inspection, testing and maintenance practices align with international expectations.
• Design consultants and system integrators - for selecting pumps suitable for chemical processing and other general industrial applications where Class II requirements are appropriate.

Practical benefits include improved interchangeability, clearer buyer–supplier agreements, predictable performance testing, and guidance on safety-related design features.

Related Standards (select)

ISO 5199 references and complements several standards, for example:

• ISO 2858 (end-suction centrifugal pumps)
• ISO 3069 (seal cavity dimensions)
• ISO 9906 (rotodynamic pump performance tests)
• ISO 3661 (baseplate and installation dimensions)
• ISO 7005 series (metallic flanges)

Keywords: ISO 5199, centrifugal pumps, Class II, pump design, pump specifications, pump testing, mechanical seals, pump materials, pump procurement.