Helium Leak Tester for Automotive Fuel System Leak Detection

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Packaging Details	Wooden Case
Delivery Time	35 days
Payment Terms	T/T,VISA
Supply Ability	200 Units/Month
Leak rate display	Numbers, Bar Charts, Graphs
Mini Leak Detection Rate(Pa.m3/s)/Sniffer Mode	2.5*10-9 Pa.m3/s
Diamension	475 * 714 *1168mm
Product Name	Helium Leak Detector
Detection Method	Helium Mass Spectrometer
Operating temperature	0~40°C
Language	Chines/English
Leak detection port	DN25KF
Brand Name	Wayeal
Model Number	SFJ-231
Place of Origin	Anhui, China
Certification	CE

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Product Details
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Product Specification


Packaging Details	Wooden Case	Delivery Time	35 days
Payment Terms	T/T,VISA	Supply Ability	200 Units/Month
Leak rate display	Numbers, Bar Charts, Graphs	Mini Leak Detection Rate(Pa.m3/s)/Sniffer Mode	2.5*10-9 Pa.m3/s
Diamension	475 * 714 *1168mm	Product Name	Helium Leak Detector
Detection Method	Helium Mass Spectrometer	Operating temperature	0~40°C
Language	Chines/English	Leak detection port	DN25KF
Brand Name	Wayeal	Model Number	SFJ-231
Place of Origin	Anhui, China	Certification	CE
High Light	Ion Source Helium Leak Detector ，9 Pa.m3/s Helium Leak Detector ，Mini Helium Leak Detector

Technical Specifications of Helium Leak Detector SFJ-231

Product Name	Helium Leak Detector SFJ-231
Diamension	645678965mm
Operating temperature	0~40°C
Detectable Quality	2, 3, 4 (H2, He3, He4)
User Interface	7inch Color Touch Screen
Detection Method	Helium Leak Detection
Mini Leak Detection Rate(Pa.m3/s)/Vaccum Mode	5*10-13 Pa·m3/s
Communication Interface	RS232/485, USB*2
Max Allowable Leak Detection Pressure (Pa)	1500
Ion Source	2pcs, Iridium Coated Yttrium Oxide, Automatic Switching
Main Features	Mass Spectrometer Leak Detector, Helium mass spectrometer Leak Detector, helium leak testing
Mini Leak Detection Rate(Pa.m3/s)/Sniffer Mode	5*10-9 Pa·m3/s
Start Time	2min
Leak Detection Port	DN25KF
Power	AC220V, 50Hz/60Hz
Language	Chinese/English

Helium Leak Detection in Automotive Fuel System

Helium mass spectrometer leak detectors are widely used in automotive fuel system leak detection due to their high sensitivity (up to 10⁻⁹ Pa·m³/s) and reliability. They are commonly used for leak detection in components such as fuel tanks, fuel lines, and evaporative emission systems.The following provides a detailed explanation of specific applications, leak detection methods, and procedures:

1. Vacuum Method (Negative Pressure Leak Detection)

Application Scenarios: Overall leak detection of sealed components such as fuel tanks and sealed pipelines.
Detection Steps:

Vacuuming: Evacuate the fuel system to 10⁻² to 10⁻³ Pa (requires a vacuum pump system).
Helium Blowing: Spray helium gas (pressure 0.1 to 0.2 MPa) around the test area (e.g., welds, joints).
Detection Signal: Helium entering the system through leaks is captured by a mass spectrometer and triggers an alarm.
Leak Point Localization: The leak point location is determined by moving the spray gun or segmentally isolating the system.

2. Pressurization Method (Positive Pressure Leak Detection)
Applicable scenarios: EVAP carbon canisters, fuel lines, and other pressure-resistant components.
Detection Steps:

Helium mixture injection: Inject a mixture of 5%–10% helium and nitrogen into the component (pressure 0.3–0.5MPa).
Seal and maintain pressure: After stabilizing the pressure, place the component in a vacuum chamber or connect it to the leak detector's suction gun.
Detect leaks: Use a mass spectrometer to detect helium escaping from the leak.
Advantages: Suitable for complex-shaped components, no need for overall vacuum extraction.

3. Sniffer Method (Local Scanning)
Application Scenarios: Online rapid leak detection of fuel systems that have been assembled (e.g., engine compartment piping).
Detection Steps:

Internal Helium Filling: Fill the fuel system with helium (working pressure).
External Scanning: Move the suction gun along weld seams, O-rings, and other areas (distance 1–3 mm).
Real-Time Feedback: The mass spectrometer peak corresponds to the leak location

Company Details

Bronze Gleitlager

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and

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from Quality China Factory

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Business Type:

Manufacturer,Exporter 
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Year Established:

2003 
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Total Annual:

50 Million-100 Million
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Employee Number:

1000~1300 
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Ecer Certification：

Verified Supplier 

Anhui Wanyi Science & Technology Co., Ltd. (hereinafter referred to as Wayeal) was founded in 2003 and is listed on the Science and Technology Board of the Shanghai Stock Exchange (stock code: 688600). As a professional supplier of precision instruments, Wayeal’s business mainly covers Ind... Anhui Wanyi Science & Technology Co., Ltd. (hereinafter referred to as Wayeal) was founded in 2003 and is listed on the Science and Technology Board of the Shanghai Stock Exchange (stock code: 688600). As a professional supplier of precision instruments, Wayeal’s business mainly covers Ind...

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Anhui Wanyi Science and Technology Co., Ltd.
No. 8, Wenqu Road, High-tech Zone, Hefei, Anhui
https://www.wayeal-instrument.com/

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