GB 17878-2009 English PDFUS$319.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 17878-2009: [GB/T 17878-2009] Cylinder valve for non-refillable steel welded industry cylinder Status: Valid GB 17878: Historical versions
Basic dataStandard ID: GB 17878-2009 (GB17878-2009)Description (Translated English): [GB/T 17878-2009] Cylinder valve for non-refillable steel welded industry cylinder Sector / Industry: National Standard Classification of Chinese Standard: J74 Classification of International Standard: 23.020.30 Word Count Estimation: 12,137 Date of Issue: 2009-06-25 Date of Implementation: 2010-04-01 Older Standard (superseded by this standard): GB 17878-1999 Quoted Standard: GB/T 228; GB/T 699; GB 17268-2009; ANSI B1.1; ANSI B1.2 Adopted Standard: ISO 13340-2001, NEQ Regulation (derived from): Announcement of Newly Approved National Standards No. 8, 2009 (No. 148 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Chinese standard specifies the industrial non-refillable welded steel cylinders with cylinder valves terms and definitions, structure type and the basic dimensions, materials, manufacturing and performance requirements, test methods, inspection rules, marking, packaging, storage and transportation. This standard applies to GB 17268-2009 specified industrial quality welding non-refillable cylinders Li. GB 17878-2009: [GB/T 17878-2009] Cylinder valve for non-refillable steel welded industry cylinder---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Cylinder valve for non-refillable steel welded industry cylinder ICS 23.020.30 J74 National Standards of People's Republic of China Replacing GB 17878-1999 Industrial non-refillable welding cylinders with a cylinder valve (ISO 13340.2001, Transportablegascylinders-Cylindervalvefor non-refilablecylinders-Specificationandprototypetesting, NEQ) Posted 2009-06-25 2010-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Structure Types and basic dimensions 1 5 material 2 2 6 manufacturing requirements 7 Performance Requirements 3 8 Test Method 3 9 inspection rules 4 10 mark, packaging, storage and transportation 5 Appendix A (informative) non-refillable test 7ForewordAll the technical contents of this standard is mandatory. This standard and ISO 13340.2001 "Transportable gas cylinders non-refillable cylinders technical requirements and type testing" (in English) of a Consistency not equivalent. This standard replaces GB 17878-1999 "industrial non-refillable cylinders." This standard compared with GB 17878-1999 main changes are as follows. --- Modify the scope of the standard (version 1999 Chapter 1; Chapter 1 of this edition); --- Original standard "reference standard" to "normative references" (1999 edition Chapter 2; Chapter 2 of this edition); --- Increasing the terms and definitions; --- The special material requirements as the focus of the specification; --- No longer body materials, plug and stem material prescribed material grades, but rather a hard and fast rules for its performance; --- Increased industrial welding cylinders with a non-repetitive nomenclature cylinder valves; --- Increasing the rubber seal immersion test requirement, the abolition of the original in the nine requirements; --- The pressure is lowered to start the test 0.1MPa; --- The original unity of 2.7MPa revised nominal working pressure; --- The pressure test pressure was adjusted to 2.5 times the nominal working pressure; --- Non-refillable pressure test is adjusted to 0.12 times the nominal working pressure, test medium instead of gas, for determining eligibility for the 2h after the pressure drop does not exceed 0.02MPa; --- Increased requirements of a valve at the factory must complete the overall tightness test (nominal working pressure), while increasing the type testing Airtight pressure 0.05MPa; --- The durability test rate from the original 6 times/min ~ 10 times/min revised to 3 times/min ~ 6 times/min; --- Modify the test rules and test methods (Chapter 4 of the 1999 edition, Chapter 5; Chapter 8 and Chapter 9 of this edition); --- Modify the mark, packaging, storage and transportation (edition 1999 Chapter 6; Chapter 10 of this edition); --- Modify the type of pilot projects and the basis for evaluation (Chapter 5, 1999 edition; edition of Appendix A); --- According to the provisions of GB/T 1.1-2000 and GB/T 1.2-2002, the contents of this standard, structure and text were modify. Appendix A of this standard is an informative annex. This standard by the National Standardization Technical Committee cylinder (SAC/TC31) and focal points. This standard is drafted by. Shanghai Institute of Special Equipment Inspection. Participated in the drafting of this standard. Zhejiang Juhua Co., Ltd. Cheng cylinder, Cixi Dachang Valve Co., Ltd. The main drafters of this standard. VIP Xu, Yang Jinfu, Luo Xiaoming, Yexiao Ru, Tu Jianguo. This standard replaces the standards previously issued as follows. --- GB 17878-1999. Industrial non-refillable welding cylinders with a cylinder valve1 ScopeThis standard specifies the industrial non-refillable welding cylinders with a cylinder valve of terms and definitions, structure type and basic dimensions, materials, manufacturing And performance requirements, test methods, inspection rules, marking, packaging, storage and transportation. This standard applies to GB 17268-2009 specified in industrial non-refillable welded steel cylinders with cylinder valve (hereinafter referred to as Cylinders).2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 228 metal materials at room temperature tensile test method (GB/T 228-2002, eqv ISO 6892.1998) GB/T 699 quality carbon steel structural conditions GB 17268-2009 industrial non-refillable welding cylinders ISO 1817 Determination of the effect of liquids vulcanized rubber ANSIB1.1 unified thread ANSIB1.2 unified thread gauges and measurement3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 It can only be completed once the media refillable cylinders.4 Structure Types and basic dimensions4.1 cylinder valve product model name indicates as follows. FCF- Industry expressed FCF non-refillable welding cylinders with a cylinder valve name Design serial number, and other Arabic numbers indicate 1,2 Improved models with Roman letters Ⅰ, Ⅱ, Ⅲ like represent 4.2 Types and basic dimensions of the cylinder valve (see Figure 1) 4.2.1 cylinder valve outlet thread is 0.4375-20UNF-2A, tooth-type angle of 60 °, the thread shall comply with the provisions of ANSIB1.1. 4.2.2 cylinder valve nominal diameter greater than or equal 4mm. 4.2.3 The total height of the cylinder valve (off) is not greater than 70mm. 4.2.4 Connection cylinder valve cylinder valve and the bottle body is welded connection. 4.2.5 open and close the cylinder valve stem at full stroke should be not less than 3mm. 4.3 under the conditions of cylinder valve from damage, the structure type cylinder valves should prevent refillable various means. Figure 1 valve type and size5 material5.1 Body material should be killed steel with good weldability and forging, welding materials and bottle adaptation phase; material shall comply GB/T 699 and GB/T 228 requirements. 5.2 Body material strength and the strength of the bottle should match the material and shall meet the strength requirements. 5.3 Non-metallic material seals should refer to the requirements of ISO 1817 using the corresponding media immersion test, and meet the following requirements. After the rubber seal at 23 ℃ ± 2 ℃ within the media of the respective bottle soaking 70h, the volume expansion rate of not more than 25% less shrinkage 1%, mass loss rate of less than 10%. Meanwhile, the strength of the rubber seals, ductility, hardness, elongation shall meet the requirements of supporting the cylinder valves. 5.4 material shall comply with the provisions of the standard, should have the quality certification documents, and adapted to be filled with the media; rubber seals It should still ensure a good sealing performance after experiencing welding thermal cycle. 5.5 Body material shall verify the chemical composition of the furnace. Chemical composition of body materials should be consistent with. C --- carbon content of not more than 0.25%; --- Phosphorus content of P is not more than 0.03%; --- S is the sulfur content of not more than 0.02%.6 manufacturing requirements6.1 valve should forging forming the body surface without cracks, holes and other defects. 6.2 stem material after processing should be able to withstand 13N · m torque without slip wire. 6.3 valve should be anti-corrosion surface treatment, after treatment should resist corresponding use of corrosive media. 6.4 thread outlet gauge shall be subject to inspection ANSIB1.2 qualified. 6.5 stem, such as a spool when using injection molding, without cold shuts, coke materials, impurities, holes and other defects, burr, flash, etc. should be repaired clean.7 Performance Requirements7.1 pressure resistance Cylinder valve at 2.5 times the nominal working pressure, shall be no leakage, permanent deformation or other anomalies. 7.2 of opening and closing Cylinder valves open and close at nominal working pressure should be flexible and open and close operation of the torque is not greater than 3N · m. 7.3 tightness Cylinder valve in 0.05MPa and nominal working pressure, in any open and closed positions may have leaks or other anomalies. 7.4 vibration resistance Cylinder valve in nominal working pressure, should be able to withstand the amplitude of 2mm, frequency of 33.3Hz, any direction duration of 30min Vibration, without leakage or other anomalies. 7.5 Temperature resistance Cylinder valve at nominal working pressure at a temperature range of -40 ℃ ~ 60 ℃ shall be no leakage or other anomalies. 7.6 Durability Cylinder valve at nominal working pressure, opened and closed 100 times the whole trip, without leakage or other anomalies. 7.7 Start of Cylinder valve at 0.1MPa working pressure is on, the media should smooth evolution. 7.8 of non-refillable Cylinder valve at 0.12 times nominal working pressure refillable medium within 2h allowable gas pressure reduction shall not exceed 5%.8 Test methods8.1 Visual inspection Pingfa appearance with visual inspection method, results should meet the requirements of 6.1. 8.2 Pressure test The cylinder valve is mounted on the pressure test equipment, plugging the outlet, so that the maximum cylinder valve is turned on, filled with water and pressurized to 2.5 times the nominal working Operating pressure, pressure 5min, may not have permanent deformation or other anomalies. 8.3 Test hoist Mounted on the cylinder valve tightness test device from the intake port filled with air or nitrogen catholic working pressure, not more than the force of 3N · m Moments cylinder valve closed, immersed in water 1min, must not have leakage; then no more than 3N · m torque can successfully open cylinders. 8.4 tightness test The cylinder valve is mounted on the air test equipment for testing. 8.4.1 blocking the outlet from the air inlet filled with air or nitrogen to 0.05MPa and nominal working pressure and immersed in water 1min, to Any open position for inspection, shall be no leakage or other anomalies. 8.4.2 plugging inlet, outlet from the charge air or nitrogen to 0.05MPa and nominal working pressure, close the cylinder valve is immersed in water 1min, checks shall be no leakage or other anomalies. 8.5 Vibration resistance test The cylinder valve is mounted on anti-vibration test equipment, the outlet air or nitrogen filled catholic working pressure, not more than 3N · m torque Close cylinder valve, according to the requirements of 7.4 in any direction vibration 30min, immersed in water 1min, may have leaks or other anomalies. 8.6 Temperature Test The cylinder valve is mounted on the heat resistance test equipment for testing, filled with air or nitrogen gas pressurization catholic working pressure, according to the requirements of 7.5 is loaded High temperature 60 ℃ ± 2 ℃, the test device is placed in the water insulation 4h (open and close each 2h); and then the device into a low temperature environment -40 ℃ ± 2 ℃, the test device is placed in alcohol incubated 4h (open and close each 2h), continuously observed during the test device shall not vent valve Drain or other anomalies. 8.7 Durability Test The cylinder valve is mounted on the durability test equipment, block outlet, from the intake port filled with air or nitrogen catholic working pressure, the cylinder valve In no more than 3N · m of torque and three times/min ~ 6 times/min at a rate of 100 for the whole trip open and close, there should be no leakage and other abnormalities phenomenon. 8.8 Start test The completion of the durability test cylinder valve installed on the device, the air inlet filled with air or nitrogen to 0.1MPa open cylinders, filled Air or nitrogen should be smooth evolution. 8.9 of non-refillable The outlet of the cylinder valve is mounted on a non-refillable device (pressure gauge on the device scale is at least 0.01MPa), to test equipment Inner filling air or nitrogen to 0.12 times the nominal working pressure within 2h allow gas pressure reduction shall not exceed 5%. The specific test method in Appendix A.9 inspection rules9.1 Materials and parts into the plant must have a quality certificate according to the standard for acceptance. 9.2 factory inspection 9.2.1 Only by testing a) visual inspection; b) Check the threaded outlet; c) the overall tightness test after assembly (performed only nominal working pressure tightness test the open position). 9.2.2 Bulk sampling Bulk sampling program, the test sequence, the number of samples in Table 1. Table 1 batch testing project Sample name Test sequence Test Project test sample Metallic material chemical composition of metal detection 1 5.5 1 Detected valve 1 8.1 Visual inspection 1 to 6 valve 8.2 1 2 pressure test valve 3 8.3 Test No. 2 to open and close the valve 4 4 8.4 tightness test valve No. 2-4 5 5 8.8 Start test valve 6 8.9 Non-refillable valve test 6 9.2.3 Sampling and determination Sampling valve shall be taken from each batch (no larger than 10,000) qualified individually by the continuous production of test products. Each batch of finished pumping Sample taken six, in the inspection process, if a valve does not meet the requirements of a particular standard, then re-extracted 12 (type test sample size 16) re-testing does not comply with the project, if still unqualified, the batch is defective valve. 9.3 Type tests 9.3.1 In the following cases, the valve must be carried out by a third party type testing. a) new product trial to identify stereotypes; b) structure, process, material and other major changes; c) disruption to production more than six months after the restart. 9.3.2 Type test project Valve type tests, the test sequence, the number of samples in Table 2. 9.3.3 Sampling and determination Type test valve should test products manufactured pass extraction, sampling base of 1000, the number of samples is 8, the inspected Process, if a valve does not meet the requirements of a particular standard, then extract 16 and then re-testing does not comply with the project, if it still failed, the Batch valve is defective. Table 2 Type of pilot projects Sample name Test sequence Test Project test sample Metallic material chemical composition of metal detection 1 5.5 1 Non-metallic materials seals rubber seals 2 5.3 3 immersion test Detected valve 1 8.1 Visual inspection 1 to 8 valve 8.2 1 2 pressure test valve 3 8.3 Test opening and closing the valve 2 to No. 6 4 8.4 tightness test valve 2 to 6 5 8.5 Vibration resistance test 2 to 6 valve 6 8.6 Temperature test 2 to 6 valve 7 7 8.7 Durability test valve 8 8.8 Start test valve 7 9 8.9 Number of non-refillable valve test 8 10 mark, packaging, storage and transportation 10.1 mark 10.1.1 shall have the following permanent signs on the valve. a) type valve; b) the valve nominal working pressure; c) the manufacturer or trademark; d) the manufacturer's manufacturing license number; e) production batch; f) manufacturing license logo. 10.1.2 valve on the hand wheel should be turned on or off permanently mark direction. 10.2 Packaging Packaging should be removed before the water remaining in the valve, the valve packing should be kept clean, the thread from damage, the box should be accompanied by co-products Georgia certificate, instruction manual. 10.2.1 Each valve shall have a factory product certification, each batch of the valve should provide batch quality certificate. Product certification shall indicate the following. Name a) valve, model; b) nominal working pressure; c) Valve Lot; d) the implementation of product standards; e) date of inspection; f) Quality Department seal. 10.2.2 Instructions shall have the following contents. a) use; b) requirements; c) considerations. 10.2.3 manufacturer's product information for at least four years. 10.3 Storage Valves should be stored in the absence of corrosive gases, ventilated, dry place and not subject to sunlight exposure. In the transport, handling to prevent collisions, Weight.Appendix A(Informative) Non-refillable test A. 1 test device and process A. Basic requirements 1.1 Test Device A. 1.1.1 The test equipment must be able to regulate the pressure and control devices of the system and continuous pressure maintaining function. A. 1.1.2 The test apparatus must be constant, continuous output test medium. A. Water Tanks 1.1.3 Test equipment for container 5L; means the system must be pressurized by the pressure test. Proof pressure should not be less than 1MPa, dwell time pressure test of not less than 5min. A. 1.1.4 should be installed on at least two test device can display the test pressure gauge is correct. Pressure gauge accuracy level is not low In 1.0, the minimum scale should be at least 0.01MPa, its range should be (2-3) times the test pressure. Pressure gauge should check once every six months. A. 1.2 Process Figure A. 1, Figure A. 1 is a recommended non-refillable test device schematic. 1 --- gas source; 2 --- valve; 3,7 --- control valve; 4,6 --- gauge; 5 --- pressurized tank; 8 --- test cylinders. Figure A. 1 Non-refillable Test apparatus Schematic A. Test Method 2 A. 2.1 test pressure is 0.12 times the nominal working pressure, test medium generally use air. A. 2.2 Test operating requirements A. 2.2.1 pressurized tank pressure regulator to 0.12 times the nominal working pressure and maintain constant pressure. A. 2.2.2 The test cylinder valve outlet connected to the device, open the valve to test the time required until the test ends. A. 2.2.3 During the test, the test system should always check the pressure gauge and note the displayed value two are the same. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 17878-2009_English be delivered?Answer: Upon your order, we will start to translate GB 17878-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 17878-2009_English with my colleagues?Answer: Yes. 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