Bundles of seamless steel gas cylinders
1 Scope
This document specifies the types and designations, technical requirements, test methods and acceptance criteria, inspection rules, marking, coating, product certificate and quality certificate of bundles of seamless steel gas cylinders (hereinafter referred to as "cylinder bundles").
This document is applicable to mobile cylinder bundles that can be refilled with compressed gas, high (low) pressure liquefied gas or gas mixtures. The nominal working pressure of cylinder bundles shall not more than 30 MPa, the nominal volume of a single cylinder shall not more than 50 L, and the total volume of cylinder bundles shall not more than 3 000 L. The ambient temperature of cylinder bundles shall be -40°C to 60°C.
This document is not applicable to the cylinder bundles filled with highly toxic gases, and to the cylinder bundles fixed to vehicle use.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T1527 Drawn tube of copper and copper alloys
GB/T 5099.1 Seamless steel gas cylinders - Part 1:Quenched and tempered steel cylinders with tensile strength less than 1100MPa
GB/T 5099.3 Seamless steel gas cylinders - Part 3: Normalized cylinders
GB/T 5099.4 Seamless steel gas cylinders - Part 4: Seamless stainless steel gas cylinders
GB/T 13005 Terminology of gas cylinders
GB/T 14976 Seamless stainless steel pipes for fluid transport
GB/T 15383 Connection types and dimensions for gas cylinder valve outlets
GB/T 19866 Specification and qualification of welding procedures for metallic materials - General rules
GB/T 20801.4 Pressure piping code - Industrial piping - Part 4: Fabrication and assembly
GB/T 33145 Large-volume seamless steel gas cylinder
GB/T 33215 Pressure relief devices for gas cylinders
GB/T 41113 Qualification testing of brazers and brazing operators
CB/T 3832 Technical requirements for copper pipes brazing
JB/T 6804 Shock-resistant pressure gauge
NB/T 47013.5 Nondestructive testing of pressure equipments - Part 5: Penetrant testing
NB/T 47014 Welding procedure qualification for pressure equipment
NB/T 47018.1 Technical permission of welding materials for pressure equipment - Part 1: General rule
NB/T 47018.2 Technical permission of welding materials for pressure equipment - Section 2: Electrodes for steel
NB/T 47018.3 Technical permission of welding materials for pressure equipment - Section 3: Steel electrodes and rods for gas shielded arc welding
NB/T 47018.4 Technical permission of welding materials for pressure equipment - Section 4: Electrodes and fluxes for submerged arc welding
TSG 23 Regulation on safety technology for gas cylinder
TSG Z6002 Examination rules for welding operators of special equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 13005 and the following apply.
3.1.1
cylinder bundle
a cylinder pack device for bunching several cylinders together
Note: Generally, cylinder bundle composed of gas cylinder, manifold and frame.
3.1.2
manifold
a system consisting of a main pipe, branch pipe, valve connected to a pipe fitting, but excluding a valve on a cylinder or a cylinder fitting
3.1.3
cylinder fitting
a part without gas closing function is used as a connector connecting the cylinder to the pipeline, when the cylinder is not suitable for cylinder valve connection
4 Types and designations
4.1 Types
The structural type of cylinder bundle is as shown in Figure 1.
5 Technical requirements
6 Test methods and acceptance criteria
7 Inspection rules
8 Marking and coating
9 Product certificate and quality certificate
Annex A (Informative) Quality certificate for batch inspection of bundles of seamless steel gas cylinders
1 Scope
2 Normative references
3 Terms and definitions
4 Types and designations
5 Technical requirements
6 Test methods and acceptance criteria
7 Inspection rules
8 Marking and coating
9 Product certificate and quality certificate
Annex A (Informative) Quality certificate for batch inspection of bundles of seamless steel gas cylinders
