"PWR Nuclear Power Plant Valve" (NB/T 20010) is composed of 15 parts:
- Part 1: General Standard for Design and Manufacture;
- Part 2: Specification of Carbon Steel Casting;
- Part 3: Specification of Stainless Steel Casting;
- Part 4: Specification of Carbon Steel Forging;
- Part 5: Specification of Austenitic Stainless Steel Forging;
- Part 6: Specification for Fastener;
- Part 7: Specification of Packaging, Transport and Storage;
- Part 8: Specification of Installation and Maintenance;
- Part 9: Final Examination and Test in Manufactory;
- Part 10: Stress Analysis and Seismic Analysis;
- Part 11: Electric Actuator;
- Part 12: Pneumatic Actuator;
- Part 13: Specification of Non-classified Valve for Nuclear Device;
- Part 14: Specification of Flexible Graphite Packing;
- Part 15: Specification of Spiral Wound Gasket with Flexible Graphite.
This part is Part 1 of NB/T 20010.
1 Scope
This standard specifies the basic requirements for the valves of nuclear island system of PWR nuclear power plant, such as grading, manufacture.
This standard is applicable to the valves correlated to the nuclear safety in PWR nuclear power plant, including gate valve, stop valve, ball valve, diaphragm valve, butterfly valve, check valve, safety valve, etc.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the dated editions apply. For undated references, the latest editions (including all the amendments) apply.
GB/T 9113.1 Integral Steel Pipe Flanges with Flat Face or Raised Face (GB/T 9113.1-2000, ISO 7005-1: 1992, MOD)
GB/T 9113.2 Integral Steel Pipe Flanges with Male and Female Face (GB/T 9113.2-2000, ISO 7005-1: 1992, MOD)
GB/T 9113.3 Integral Steel Pipe Flanges with Tongue and Groove Face (GB/T 9113.3-2000, ISO 7005-1: 1992, MOD)
GB/T 9113.4 Integral Steel Pipe Flanges with Ring-joint Face (GB/T 9113.4-2000, ISO 7005-1: 1992, MOD)
GB/T 12220 General Purpose Industrial Valves - Marking (GB/T 12220-1989, ISO 5209: 1977, MOD)
GB/T 12221 Metal Valves - Face to Face, End to End, Center to Face and Center to End Dimensions (GB/T 12221-2005, ISO 5752: 1982, MOD)
GB/T 15474 Safety Classification of Instrumentation and Control Systems and Their Electrical Equipment of Nuclear Power Plants (GB/T 15474-1995, IEC 61226: 1996, NEQ)
GB/T 15475 Classification of Quality Assurance for Instrumentation and Control System and Their Electrical Equipment of Nuclear Power Plants
GB/T 16702-1996 Design Rules for Mechanical Components of PWR Nuclear Islands
GB/T 17569 Classification for the Items of Pressurized Water Reactor Nuclear Power Plants
EJ/T 1012 Manufacture Rules for Mechanical Components of PWR Nuclear Islands
EJ/T 1027 Welding Rules for Mechanical Components of PWR Nuclear Islands
JB/T 7746-2006 Compact Steel Valves
NB/T 20010.2 PWR Nuclear Power Plant Valve - Part 2: Specification of Carbon Steel Casting
NB/T 20010.3 PWR Nuclear Power Plant Valve - Part 3: Specification of Stainless Steel Casting
NB/T 20010.4 WR Nuclear Power Plant Valve - Part 4: Specification of Carbon Steel Forging
NB/T 20010.5 PWR Nuclear Power Plant Valve - Part 5: Specification of Austenitic Stainless Steel Forging
NB/T 20010.6 PWR Nuclear Power Plant Valve - Part 6: Specification of Fastener
NB/T 20010.7 PWR Nuclear Power Plant Valve - Part 7: Specification of Packaging, Transport and Storage
NB/T 20010.9 PWR Nuclear Power Plant Valve - Part 9: Final Examination and Test in Manufactory
NB/T 20010.10 PWR Nuclear Power Plant Valve - Part 10: Stress Analysis and Seismic Analysis
NB/T 20010.11 PWR Nuclear Power Plant Valve - Part 11: Electric Actuator
NB/T 20010.12 PWR Nuclear Power Plant Valve - Part 12: Pneumatic Actuator
NB/T 20010.14 PWR Nuclear Power Plant Valve - Part 14: Specification of Flexible Graphite Packing
NB/T 20010.15 PWR Nuclear Power Plant Valve - Part 15: Specification of Spiral Wound Gasket with Flexible Graphite
HAF 003 Requirements for Quality Assurance and Safety of Nuclear Power Plants
HAF 601 Regulations on the Supervision and Management of the Design, Manufacturing, Installation and Nondestructive Testing of Civil Nuclear Safety Equipment
HAF 602 Regulations on the Qualification Management of Non-destructive Testing Personnel for Civil Nuclear Safety Equipment
HAF 603 Regulations on the Qualification Management of Welders and Welding Operators for Civil Nuclear Safety Equipment
HAD 102/02 Seismic Design and Verification for Nuclear Power Plant
ASME B16.5 Pipe Flanges and Flanged Fittings
ASME B16.47 Large Diameter Steel Flanges
ASME QME-1 Qualification of Active Mechanical Equipment Used in Nuclear Power Plants
3 Valve Classification
3.1 General
See Table 1 for valve classification principle; meanwhile, reference shall be made to the technical specification of valve.
Foreword i
1 Scope
2 Normative References
3 Valve Classification
4 Actuator and Electric Attachments
5 Marking
6 Materials
7 Design and Calculation
8 Manufacturing
9 Delivery Inspection and Test of Products
10 Valve Protective Cover, Packaging, Transportation and Storage
11 Evaluation of Nuclear Standard Grade Valves
Appendix A (Normative) Maximum Allowable Pressure of PWR Nuclear Power Plant Valve
