Gaskets and O-rings are used to join two parts of a machine, engine or another often mechanical assembly by filling the space between both parts, creating a filled and sealed space in between.
This seal prevents particle, vapour and fluid ingress or leakage to protect and maintain the joint or pressure whilst keeps debris out, ensuring proper function and safety. Gaskets and O-rings are used in various fields and industries including automotive, aerospace and general engineering.
Sealing for the transport sector
Hao Seal Tech. supplies a range of o-rings and technical rubber moulded parts in compounds that are specifically tailored to the needs of the transport sector. The range consists of elastomeric and PTFE rotary seals and custom-made mechanical seals.
Fuel Line Quick Connector Sealing Applications
Material Compliance
VW.2.8.1 series product standards
GMW14754/GMW16163B-E
Technical specifications of OEMs such as Geely,Great Wall, and Changan
| SAE connector | 6.3 | 7.89 | 9.49 | 9.89 | 11.8 | 12.61 | 15.82 | 18.9 | 22.7 | 25.5 | 28.42 |
| 内密封圈 | 6.07*1.78 6.16*1.6 6.02*1.64 | 7.5*1.8 7.65*2 | 9*1.8 9*2 | 9.5*1.8 9.6*2 | 11*2.5 11.5*2.3 | 12*2.5 12.3*2.4 | 15.5*2.5 15.6*2.4 15.6*3.0 | 18.1*3 18.4*2.5 | 22.2*2.65 | --- | 28.4*2.4 |
Fuel Vapor Desorption Tube
Technical knowledge
We draw on in-depth technical knowledge to ensure that the optimal seal is selected for your application; either a standard product from our premium production facilities, or a tailor-made solution based on your specifications.
Through strict application of process and quality controls, we are able to provide our customers with the consistent, reliable product required in safety-critical applications.
Sealing Components for Automotive Cooling Systems
VDA-NW Connector Seals
Cooling Battery Pack Flange Seals
| Purple /Black,Excellent Low-Temperature Performance | ||||
| Test ltem | Acceptance Criteria | Test Result | Conclusion | |
| Low Temperature Retraction (TR) Test | TR10 | ≤-50 | -53.1 | OK |
| TR30 | ≤-45 | -49.3 | OK | |
| TR50 | ≤-40 | -45.6 | OK | |
| TR70 | ≤-35 | -39.2 | OK | |
| Connector | NW06 | NW09 | NW12 | NW16 | NW20 | NW26 | NW32 | NW35 | NW40 | NW45 | NW50 | |
| Male Coup--ling B | mm | 10.4 | 12.4 | 16.3 | 22.3 | 26.3 | 32.5 | 38.5 | 41.5 | 46 | 51.5 | 56.5 |
| TOL | (0,-01) | (0,-01) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (0,-0.3) | (+0.1,-0.3) | |
| O Ring | IDxCS | 10x3 | 12x3 | 16x3 | 22x3.5 | 26x3.5 | 32.x4 | 38x4 | 40x4 | 45.4 | 50x4 | 56x4 |
Seals/O-rings for the Automotive market
The most demanding and extreme conditions for rubber Seals/O-rings occur in applications in the Automotive industry. The seal must retain its shape under mechanical, thermo-chemical and liquid phase conditions in these, often safety-critical, applications.
Standard and custom rubber compounds
Hao Seal Tech has its own modern technology centres in China,We do our best to be a leader in materials knowledge, and develops new and strictly controlled, qualified rubber compounds.
Experienced application engineers draw on in-depth technical knowledge to ensure that the optimal seal is specified for your application, both standard and custom-made.
Sealing Components for Automotive Fule Line Systems
Fuel Line O-Rings:
Manufactured from FKM and FVMQ, providing excellent resistance to gasoline, ethanol-gasoline blends, methanol-gasoline blends, diesel, and biodiesel fuels.
Applications:
Primarily used for fuel line quick connector O-rings, ICV valve seals, GVV valve seals, FLVVF seals, CFLVV valve seals, one-way valve diaphragms for fuel vent lines, single- and dual-way valve diaphragms, and Venturi valve diaphragms.
Sealing Solutions for Power & Energy Storage Batteries
Electrolyte-Resistant Sealing Ring
1. Excellent Chemical Corrosion Resistance
Capable of withstanding the corrosive effects of acids, alkalis, salts, and other chemicals present in electrolytes.
2. Reliable Sealing Performance
Ensures stable sealing even under harsh conditions such as high pressure and high temperature.
3. High Mechanical Properties
Possesses sufficient strength and toughness to maintain sealing integrity during operation.
Applications
Sealing ring series 27 / 36 / 46 / 48 / 50 / 52 / 5 4 / 56 / 71 have been supplied to leading end customers such as AVIC, Gotion, EVE, and Z ENLION for use in power and energy storage batteries.
Materials: Peroxide-cured EPDM (for lithium iron phosphate batteries) and peroxide-cured FKM (for ternary lithium batteries).
Technical Requirements
1. Excellent Chemical Resistance: Capable of withstanding corrosion from acids, alkalis, salt s, and other chemical substances in electrolytes.
2. Superior Sealing Performance: Ensures stab le sealing even under harsh conditions such as high pressure and high temperature.
3. High Mechanical Strength: Provides sufficie nt strength and toughness to ensure long-term sealing during service
Sealing Solutions for New Energy Vehicle Charging Connectors
Technical Requirements for EV Charging Connector Sealing Rings
1. Material Compliance – Made of UL94-V0 f lame-retardant silicone rubber with excellent fl ame resistance and aging resistance.
2. Self-Lubricating Performance – Material wi th self-lubricating properties to maintain elastic ity, strength, and long-lasting sealing performa nce during repeated plug-in and unplug cycles.
3. Full Standard Coverage – Haoou Sealing pr ovides a complete range of sealing products for charging connectors compliant with Chinese, European, and American standards, with full sp ecifications available.
