• BS 7784(1994) : 1994 AMD 9864

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    TECHNICAL SPECIFICATIONS FOR CENTRIFUGAL PUMPS - CLASS I

    Available format(s): 

    Superseded date:  15-02-1998

    Language(s): 

    Published date:  23-11-2012

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Committees responsible
    National foreword
    Specification
    1. Scope
    2. Normative references
    3. Definitions
    4. Design
    5. Materials
    6. Shop inspection and tests
    7. Preparation for dispatch
    8. Responsibilities
    Annexes
    A. (normative) Centrifugal pump - Data sheet
    B. (normative) External forces and moments on branches
    C. (normative) Enquiry, proposal, purchase order
    D. (normative) Documentation after purchase order
    E. (informative) Peak displacement
    F. (informative) Examples of seal arrangements
    G. (informative) Piping arrangements for seals
    H. (informative) Code for identification of fluid
         connections
    J. (informative) Materials and material specifications
         for centrifugal pump parts
    K. (informative) Check-list
    L. (informative) Bibliography
    Tables
    1. Limits of vibration severity for horizontal pumps
         with multivane impellers
    2. Minimum running clearances
    3. Maximum coupling end floats
    B.1 Characteristics of horizontal pump families
    B.2 Characteristics of vertical pump families
    B.3 Basic values of forces and moments for horizontal
         and vertical pumps
    B.4 Coefficients for actual values of horizontal pumps
    B.5 Coefficients for actual values of vertical pumps
    H.1 Identification of corrections for measurement devices
    H.2 Identification of corrections for auxiliary devices
    J.1 Material specification for centrifugal pump parts
    J.2 Material code for mechanical seal components
    Figures
    1. Driver output percentage of rated pump power
         required in the range of 1 kW to 100 kW
    2. Conditions of critical speed
    3. Maximum spacing between shaft guide bushes (vertical
         lineshaft pumps)
    E.1 Single ampitude A, as a function of speed of
         rotation for various rms-velocity values
    F.1 Soft packing (P)
    F.2 Single mechanical seal (S)
    F.3 Multiple mechanical seal
    F.4 Quench arrangement (Q) for soft packing, single and
         multiple mechanical seal

    Abstract - (Show below) - (Hide below)

    Covers the Class I (most severe) requirements for centrifugal pumps used in various industries. Coverage includes design, materials, preparation for despatch, and shop inspection and tests. Also gives definitions, tables and annexes. BS AMD 9864 RENUMBERS THIS STANDARD

    General Product Information - (Show below) - (Hide below)

    Development Note Renumbered and superseded by BS EN ISO 9905 Supersedes 91/76635 DC (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 7005-2:1988 Metallic flanges — Part 2: Cast iron flanges
    ISO 3744:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane
    ISO 2548:1973 Centrifugal, mixed flow and axial pumps Code for acceptance tests Class C
    ISO 544:2011 Welding consumables Technical delivery conditions for filler materials and fluxes Type of product, dimensions, tolerances and markings
    ISO 7005-3:1988 Metallic flanges Part 3: Copper alloy and composite flanges
    ISO 1940-1:2003 Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances
    ISO 2372:1974 Mechanical vibration of machines with operating speeds from 10 to 200 rev/s Basis for specifying evaluation standards
    ISO 281:2007 Rolling bearings Dynamic load ratings and rating life
    ISO 3506:1979 Corrosion-resistant stainless steel fasteners — Specifications
    ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
    ISO 3746:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Survey method using an enveloping measurement surface over a reflecting plane
    ISO 3555:1977 Centrifugal, mixed flow and axial pumps — Code for acceptance tests — Class B
    ISO 3274:1996 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Nominal characteristics of contact (stylus) instruments
    ISO 2858:1975 End-suction centrifugal pumps (rating 16 bar) — Designation, nominal duty point and dimensions
    ISO 427:1983 Wrought copper-tin alloys Chemical composition and forms of wrought products
    ISO 185:2005 Grey cast irons Classification
    ISO 7005-1:2011 Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
    ISO 4863:1984 Resilient shaft couplings — Information to be supplied by users and manufacturers
    ISO 3755:1991 Cast carbon steels for general engineering purposes
    ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
    ISO 3069:2000 End-suction centrifugal pumps — Dimensions of cavities for mechanical seals and for soft packing
    ISO 76:2006 Rolling bearings Static load ratings
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