1 Scope
This specification specifies the design, manufacturing, inspection and test requirements of centrifugal pumps for heavy duty services in petrochemical engineering and their drivers and auxiliary equipment.
This specification is applicable to the engineering design and equipment procurement of centrifugal pumps for heavy duty services in petrochemical engineering. Centrifugal pumps beyond the range of heavy load parameter may also be implemented by reference.
Note: the centrifugal pump for heavy duty services in petrochemical engineering refers to the centrifugal pump conforming to one of the following conditions:
a) Transmitting the flammable or hazardous medium unless otherwise specified;
b) Transmitting non-combustible and non-hazardous medium under one of the following operating conditions:
1) The rated discharge pressure is greater than 1.9MPa (G);
2) The operating temperature (medium temperature) is higher than or equal to 225℃;
3) The rated speed is greater than 3000r/min;
4) The rated lift is greater than 120m;
5) The maximum suction pressure is greater than 0.5MPa (G);
6) The maximum impeller diameter of cantilever pump is greater than 330mm;
c) The pump is in reversed operation and used as hydrodynamic recycling turbine.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 9112 Steel Pipe Flanges
GBZ/T 189.8-2007 Measurement of Physical Agents in Workplace - Part 8: Noise
HG 20592 Types and Parameters for Steel Pipe Flanges (European System)
HG 20615 Types and Parameters for Steel Pipe Flanges (American System)
HG 20623 Large Diameter Steel Pipe Flanges (American System)
SH 3406 Steel Pipe Flanges for Petrochemical Industry
SH/T 3156-2009 Engineering Specification of Pumps-shaft Sealing Systems of Centrifugal and Rotary Pumps for Petrochemical Industry
SH/T 3149 Engineering Specification of General Purpose Steam Turbines in Petrochemical Industry
ISO 1940 Mechanical Vibration-balance Quality Requirements of Rigid Rotors
ISO 10438 (API Std 614) Petroleum, Petrochemical and Natural Gas Industries - Lubrication, Shaft-sealing and Control - Oil Systems and Auxiliaries
ISO 13709-2003 (API Std 610-2004) Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries
ISO 21049-2004 (API Std 682-2004) Pumps-shaft Sealing Systems for Centrifugal and Rotary Pumps
API Std 670 Machinery Protection System
ASME B16.1 Cast Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
ASME B16.5 Pipe Flanges and Flanged Fittings NPS 1/2 through NPS 24
ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and 300
ASME B16.47 Large Diameter Steel Flanges NPS 26 through NPS 60
EN 1092-1 Flanges and their Joints - Circular Flanges for Pipes, Valves, Fittings and Accessories, PN Designated - Part 1 Steel Flanges
EN 1092-2 Flanges and their Joints - Circular Flanges for Pipes, Valves, Fittings and Accessories, PN Designated - Part 2 Cast Iron Flanges
3 Terms and Definitions
For the purpose of this specification, the terms and definitions established in Chapter 3 of ISO 13709-2003 (API Std 610-2004) apply.
4 Alternative Design
The Seller may provide an alternative design which is beneficial for the parties concerned (the Buyer/the Seller) from the technology and business points of view. The alternative design provided by the Seller shall include detailed description, application achievement and the adopted standards and specifications. The Buyer shall evaluate this alternative design scheme and decide whether to adopt or not.
Foreword I
1 Scope 1
2 Normative References 1
3 Terms and Definitions 2
4 Alternative Design 2
5 Basic Design 2
5.1 General Requirements 3
5.2 Pump Type 4
5.3 Pump Case 5
5.4 Inlet and Outlet of Pump and Other Interfaces on Pump Case 5
5.5 External Force and External Torque Acting on the Inlet and Outlet of Pump 5
5.6 Rotor 5
5.7 Wearing Ring and Running Clearance 6
5.8 Shaft Seal 6
5.9 Dynamics 6
5.10 Bearing and Bearing Box 7
5.11 Lubrication 7
5.12 Materials 7
5.13 Noise 8
6 Auxiliary Equipment 9
6.1 Driver 9
6.2 Coupler and Shield 9
6.3 Pedestal 9
6.4 Control and Instruments 10
6.5 Auxiliary Pipeline and its Accessories 11
6.6 Special Tools 12
7 Inspection and Test 12
7.1 General 12
7.2 Inspection 12
7.3 Test 12
7.4 Inspection and Test Record 13
7.5 Material Certificate 13
7.6 Non-destructive Inspection 13
7.7 Appearance Inspection and Dimension Testing 14
8 Various Specific Pump Types 14
9 Painting, Marking, Packaging and Transportation 15
9.1 Painting and Anti-rust Treatment 15
9.2 Nameplate and Rotation Arrow 15
9.3 Marking 16
9.4 Package and Transportation 16
10 Assurance 16
10.1 Mechanical Assurance 16
10.2 Performance Assurance 16
11 Information of the Seller 16
Appendix A (Informative) Referenced Supply Scope 17
Appendix B (Informative) Data Sheet for Centrifugal Pumps for Heavy Duty Services 18
Appendix C (Informative) Comparison of Standard and Nominal Pressure Class of Flanges 38
Appendix D (Informative) Comparison of Major Materials Used for Pump Parts and Components 39
Appendix E (Informative) Comparison of Piping Materials 41
Appendix F (Informative) Drawings and Information which Shall be Provided by the Seller 42
