GB/T 34425-2023 PDF English
US$380.00 · In stock · Download in 9 secondsGB/T 34425-2023: Fuel cell electric vehicles hydrogen refueling nozzle Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 34425: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 34425-2023 | English | 380 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Fuel cell electric vehicles hydrogen refueling nozzle
| Valid |
| GB/T 34425-2017 | English | 145 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Fuel cell electric vehicles - Hydrogen refuelling nozzle
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 34425-2023
GB/T 34425-2023: Fuel cell electric vehicles hydrogen refueling nozzle---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT34425-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.081.01
CCS T 47
Replacing GB/T 34425-2017
Fuel cell electric vehicles hydrogen refueling nozzle
Issued on. DECEMBER 28, 2023
Implemented on. JULY 01, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Models... 6
5 Requirements... 7
5.1 General requirements... 7
5.2 Performance requirements... 8
6 Test methods... 11
6.1 General provisions... 11
6.2 Appearance inspection... 12
6.3 Air tightness... 12
6.4 Drop... 12
6.5 Valve operating handle... 13
6.6 Abnormal load... 13
6.7 High and low temperature simulation... 14
6.8 Durability... 15
6.9 Aging resistance... 16
6.10 Hydrogen compatibility... 16
6.11 Resistor... 16
6.12 Hydrostatic strength... 16
6.13 Corrosion resistance... 16
6.14 Deformation... 17
6.15 Pollution... 17
6.16 Thermal cycle... 17
6.17 Precooled hydrogen exposure... 17
6.18 Misoperation... 18
6.19 Compatibility... 18
6.20 Abuse... 18
6.21 Freezing... 19
6.22 Swing/twist... 20
7 Marking... 20
Appendix A (Normative) Hydrogen refueling nozzle/receptacle connection... 21
Appendix B (Normative) Tight fit test equipment... 22
Appendix C (Normative) Loose fit test equipment... 26
Appendix D (Normative) Wear mode testing equipment... 30
1 Scope
This document defines the hydrogen refueling nozzle for fuel cell electric vehicles,
specifies the technical requirements and test requirements for the hydrogen refueling
nozzle, describes the test methods for the hydrogen refueling nozzle and its connecting
components.
This document applies to fuel cell electric vehicle hydrogen refueling nozzles, that use
compressed hydrogen as the working medium, has a nominal working pressure not
more than 70 MPa and a medium temperature of -40 °C ~ 85 °C.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
GB/T 1690-2010 Rubber, vulcanized or thermoplastic - Determination of the effect
of liquids
GB/T 7762-2014 Rubber, vulcanized or thermoplastic - Resistance to ozone
cracking - Static strain testing
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 24548 Fuel cell electric vehicles - Terminology
GB/T 26779-2021 Hydrogen fuel cell electric vehicle refueling receptacle
3 Terms and definitions
The terms and definitions as defined in GB/T 24548 and GB/T 26779-2021, as well as
the following terms and definitions, apply to this document.
3.1
Hydrogen refueling nozzle
A refueling nozzle, which is installed at the end of the hydrogenation hose of the
hydrogen refueling machine, to connect the hydrogen refueling machine and the
vehicle.
3.2
Receptacle
When refueling, the sum of components connecting the vehicle to the hydrogen
refueling nozzle.
[Source. GB/T 26779-2021, 3.1, with modifications]
3.3
Connector
A receptacle and hydrogen refueling nozzle assembly, that can be quickly connected
and disconnected to refuel fuel cell electric vehicles or storage systems.
3.4
Cycle
A whole process including the connecting the hydrogen refueling nozzle and the
receptacle, pressurizing to the design pressure, depressurizing, disconnecting.
4 Models
The hydrogen refueling nozzle's model consists of the following parts.
5 Requirements
5.1 General requirements
5.1.4 The hydrogen refueling nozzle should have filters and other protective measures,
to prevent upstream solid matter from entering.
5.1.5 The hydrogen refueling nozzle shall be able to work normally in the ambient
temperature range of -40 °C ~ 60 °C and the medium temperature range of -40 °C ~
85 °C.
5.1.6 For the hydrogen refueling nozzle, it is not allowed to open the one-way valve of
the receptacle through mechanical means.
5.1.7 When the internal pressure is greater than 1 MPa, the hydrogen refueling nozzle
shall not be removed.
5.2 Performance requirements
5.2.1 Air tightness
Carry out the air tightness test according to the method specified in 6.3.If no bubbles
are detected within the specified time, the sample passes the test. If bubbles are detected,
use a vacuum test (overall cumulative test) to measure the leakage rate, OR use other
equivalent methods to confirm that the hydrogen leakage rate is less than 20 cm3/h at
20 °C and 101 kPa.
5.2.2 Drop
After testing according to the method specified in 6.4, the hydrogen refueling nozzle
can be connected normally to the receptacle and the tight fit test equipment specified in
Appendix B, which shall meet the requirements of 5.2.1 and 5.2.5.
5.2.6 Durability
5.2.6.1 Hydrogen refueling nozzle
After testing according to the method specified in 6.8.1, the hydrogen refueling nozzle
meets the requirements in 5.2.1, 5.2.5 (only -40° C related content) and 5.2.10.
of 5.2.9.
During the test, according to the requirements in Table 3, replace the loose and tight fit
test equipment every 15000 times and check their wear. The wear and tear of test
equipment shall comply with the requirements of Appendix D.
5.2.7 Aging resistance
5.2.7.1 Oxygen aging resistance
Conduct an oxygen aging resistance test on the hydrogen refueling nozzle seal,
according to the method specified in 6.9.1.There shall be no obvious deformation,
deterioration, spots, cracks, etc.
5.2.9 Resistance
According to the method specified in 6.11, the resistance of the connector shall not be
greater than 1000 Ω under pressure and non-pressure conditions. Conduct resistance
tests before and after the life cycle test.
5.2.10 Hydrostatic strength
Carry out the test according to the method specified in 6.12.There is no leakage in the
hydrogen refueling nozzle and connector during the test.
The hydrostatic strength test is the final test. The sample shall not be used for any other
tests after this test.
6 Test methods
6.1 General provisions
6.1.1 Test conditions
Unless otherwise specified, the test shall be carried out under the following conditions.
6.1.2 Measurement parameters, their units, accuracy
The measurement parameters, their units, accuracy requirements are as shown in Table
2.
6.2 Appearance inspection
Visually inspect the hydrogen refueling nozzle.
6.3 Air tightness
When the hydrogen refueling nozzle is connected to the receptacle and the receptacle
is in a closed state, OR when the hydrogen refueling nozzle is not connected to the
receptacle and the hydrogen refueling nozzle is in a closed state, leak detection gas is
passed through to carry out the test at 0.5 MPa and 1.5 times the nominal working
pressure, respectively.
6.4 Drop
Place the hydrogen refueling nozzle in an environment of -40 °C for 24 hours. Then
connect it to a filling hose which has a length of 5 m.
6.5 Valve operating handle
For a hydrogen refueling nozzle equipped with a valve operating handle, a force of 200
N is applied in the opening and closing directions of the farthest point from the rotation
axis. The tests are conducted under two conditions.
6.8 Durability
6.8.1 Hydrogen refueling nozzle
Perform 100000 cycles on the hydrogen refueling nozzle. One cycle is defined as.
6.8.2 Connectors
Connect the connector to the test equipment; the outlet of the receptacle is connected to
the atmosphere; the air inlet of the hydrogen refueling nozzle is connected to the leakage
test gas source.
6.22 Swing/twist
Install the receptacle horizontally on a fixed support, that can withstand the specified
load without displacement or deflection.
7 Marking
The hydrogen refueling nozzle shall have the following permanent and clear markings.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 34425-2023 be delivered?Answer: The full copy PDF of English version of GB/T 34425-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 34425-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 34425-2023_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 34425-2023 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 34425-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 34425-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of GB/T 34425-2023?A step-by-step guide to download PDF of GB/T 34425-2023_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 34425-2023".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|