Haoyin (Ningbo) Bellows Technology Co., Ltd.
  • TEL:

    +86-574-62166708
  • Fax:

    +86-18616887802
  • Address:

    No. 25 Gubei Road, Simen Town, Yuyao, Ningbo City, Zhejiang Province, China

Feel Free To Contact Us :

[email protected]

Our Products

Haoyin corrugated pipe, connecting the world's pipelines with professional expertise for the future. Green factories produce high-quality products, specializing in precision and showcasing new strength.

About

Haoyin (Ningbo) Bellows Technology Co., Ltd. is a professional enterprise specializing in the R&D, design, manufacturing, and sales of stainless steel bellows.

Service

Through our many years of professional experience, we provide you with comprehensive and considerate services

NEWS

Provide you with the latest enterprise and industry news.
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Stainless Steel Flexible Gas Hose Factory

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About us

Haoyin (Ningbo) Bellows Technology Co., Ltd.

ESTABLISHED FOR 20 YEARS.

Haoyin (Ningbo) Bellows Technology Co., Ltd. is a professional enterprise specializing in the R&D, design, manufacturing, and sales of stainless steel bellows. It is committed to providing safe, efficient, and durable flexible connection solutions for gas, plumbing, heating, and other fields. We are a professional OEM Stainless Steel Flexible Gas Connector Manufacturers and ODM Custom CSST Gas Connector Factory,Covering an area of 35 mu, the company has 18,000 square meters of standardized workshops and has obtained multiple management system certifications, such as ISO9001, ISO14001, and ISO45001.
As a "National High-tech Enterprise" and "Green Factory", Haoyin has always adhered to the production philosophy of "Striving for Excellence, Forging Quality". It has built a full-process quality management system from raw material screening, structural design, manufacturing, performance testing to after-sales support, continuously creating higher value for customers.
  • 18,00001

    Factory Area

  • 50 + 02

    Advanced Equipment

  • 120+03

    employees

  • 30+04

    Monthly Production (10000 meters)

NEWS

Latest articles

  • Jan 08,2026

    Are Stainless Steel Flexible Gas Connectors Really Safe?

    With the widespread use of gas in modern life, ensuring the safety of gas pipelines has become paramount. In recent years, stainless steel flexible gas connectors have been widely used in household and industrial gas systems due to their co...

  • Jan 01,2026

    Why Choose Stainless Steel Bellows for Gas Pipelines?

    With the widespread use of natural gas in urban areas, the safety of household, commercial, and industrial gas pipelines has become a major concern. In recent years, stainless steel bellows have gradually become the preferred material for g...

  • Dec 23,2025

    Stainless Steel Bellows vs. Ordinary Pipes: Why are they superior?

    In modern industry, piping systems are used to transport liquids, gases, steam, and other media, and are widely used in chemical, petroleum, construction, power generation, and other industries. The choice of piping is crucial for the safet...

Gas Connector Industry knowledge

1. What is a gas connector?
The Stainless Steel Whistle Free Gas Connector is designed for safe and reliable gas connections, providing superior durability and corrosion resistance. Made from high-quality stainless steel, this connector ensures long-lasting performance and flexibility. Our product line includes FLEX SS HOSE TUBE and Flexible Gas Tube options, ideal for both residential and commercial applications. The connectors are available with protective coatings, including PVC Coated Gas connector, Yellow Coated Gas connector, and the highly durable Yellow Coated Stainless Steel Gas hose, ensuring enhanced visibility, abrasion resistance, and long-term safety. With these features, the stainless steel whistle free connector provides a quiet, secure, and efficient solution for all gas appliances.

Haoyin (Ningbo) Bellows Technology Co., Ltd. is a professional enterprise specializing in the R&D, design, manufacturing, and sales of stainless steel bellows. It is committed to providing safe, efficient, and durable flexible connection solutions for gas, plumbing, heating, and other fields.

2. Advantages and Features of Gas Connectors
(1) Good flexibility and easy installation
Gas connectors can be freely bent, suitable for complex spaces and multi-angle installations.  No welding or complicated operations are required; effective assembly can be achieved by simply connecting the interfaces correctly, reducing construction time.

(2) High pressure and corrosion resistance
High-quality gas connectors typically use stainless steel materials, which can withstand high gas pressure, are not easily corroded or aged, and can maintain stable performance for a long time. They are suitable for various types of gas, including natural gas and liquefied petroleum gas.

(3) Excellent leak-proof performance and higher safety
The standardized sealing structure effectively prevents gas leaks, improving the overall safety of the gas system. Some high-end products also feature pull-out protection and anti-twist design, further reducing the risk of accidents.

3. Maintenance Points for Gas Connectors
(1) Regularly inspect the interface and pipe body
Check whether the connection is loose and whether the pipe body has cracks, deformation, or corrosion. Replace it promptly if necessary to avoid the risk of gas leaks.

(2) Avoid excessive stretching and bending
Although gas connectors are flexible, excessive stretching, twisting, or forceful bending will reduce their service life. Ensure that they operate within a reasonable arc.

(3) Keep away from high temperatures and oily environments
High temperatures can cause seals to age, and oil stains can easily cause corrosion in the connection area. It is recommended to keep the connection area dry and clean to ensure long-term stable use.

Gas Connector Maintenance Checklist:

Maintenance Aspect Key Points
Visual Inspection Check for cracks, corrosion, or physical damage on the connector and hoses.
Leak Testing Use soapy water or a gas leak detector to check for leaks at connection points.
Tightness Check Ensure all fittings are securely tightened but avoid over-tightening.
Hose Condition Inspect for brittleness, wear, or deformation; replace if damaged.
Cleanliness Keep the connector free from dirt, grease, and debris.
Ventilation Check Ensure proper airflow around the connector to prevent overheating.
Regulator Inspection Verify that the pressure regulator is functioning correctly.
Compliance Check Ensure the connector meets local safety standards (e.g., ANSI, EN, CSA).
Replacement Schedule Replace connectors as per manufacturer’s guidelines (typically every 5-10 years).
Professional Inspection Have a certified technician inspect the system annually for safety compliance.

4. Gas Connector FAQ
Q1: What is the service life of a gas connector?
A1: Generally, it can be used for 5–10 years, depending on the material, usage environment, and maintenance.

Q2: Can I replace the gas connector myself?
A2: Self-replacement is not recommended. Gas is a dangerous energy source, and replacement work should be performed by professionals to ensure that the sealing and installation meet the standards.

Q3: What are the common causes of gas leaks from gas connectors?
A3: These mainly include aging seals, loose connections, excessive bending, corrosion damage, or exceeding the recommended service life.

Q4: What gas appliances are gas connectors suitable for?
A4: They are mainly used for household and commercial gas appliances such as gas stoves, water heaters, wall-mounted boilers, ovens, and heating stoves.

Q5: How to determine if a gas connector needs to be replaced?
A5: If discoloration, cracks, deformation, gas leaks, or exceeding the recommended service life are observed, it is recommended to replace it immediately.