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Global Standards & Certifications

CSA Certified

CSA Standards

CSA C/US Certified

ANSI Compliance

ANSI Standards

ANSI Z21.24 / Z21.75

ISO 9001

Quality Management

ISO 9001 Certified

ISO 14001

Environmental

ISO 14001 Certified

ISO 45001

Health & Safety

ISO 45001 Certified

CSA Certified Stainless Steel Gas Connectors

Haoyin produces high-performance stainless steel gas connectors at our 18,000m² ISO-certified production base. By utilizing advanced CSST (Corrugated Stainless Steel Tubing) technology, we provide factory-direct solutions that ensure maximum safety for gas infrastructure and appliances.

✔ Certified Safety: Fully compliant with CSA, ISO 9001, 14001, and 45001 standards.
✔ 100% Leak Tested: Every connector undergoes mandatory air-tightness testing before shipment.
✔ Premium Material: Constructed from Grade 304 Stainless Steel with 0.2-0.25mm thickness.
✔ Standard Sizes: 12", 18", 24", 36", 48", 60", 72" (Custom lengths available).
✔ Heavy-Duty Fittings: Precision-engineered Brass or Carbon Steel nuts with secure hard sealing.
✔ Custom OEM/ODM: Specialized adapters and flared/threaded fittings to meet global project requirements.
✔ Wholesale Advantage: Factory-direct pricing with a minimum order quantity (MOQ) of 100 pieces.
✔ Versatile Application: Safe for use with stoves, dryers, water heaters, and outdoor fire pans.

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  • DN10 Stainless Steel Gas Connector
  • DN12 Stainless Steel Gas Connector
  • DN15 Stainless Steel Gas Connector
  • DN20 Stainless Steel Gas Connector
  • DN25 Stainless Steel Gas Connector

Stainless Steel Whistle Free Gas Connector & Non-Whistle Gas Line

Our premium non-whistle flexible gas connectors are specifically engineered to eliminate noise resonance in high-flow gas systems. Crafted from high-grade corrugated stainless steel, these connectors provide a quiet, stable, and safe gas supply for demanding residential and commercial applications.
✔ Acoustic Innovation: Specialized internal structure designed to eliminate noise resonance during high-flow operation.
✔ 100% Leak Tested: Mandatory air-tightness testing for every connector to ensure zero-defect safety.
✔ Pipe Diameter: Available in DN10, DN12, DN15, DN20, and DN25 to meet diverse engineering standards.
✔ Premium Material: High-grade 304 Stainless Steel (0.2-0.25mm thickness) for superior durability.
✔ Noise-Free Application: Engineered specifically for high-BTU appliances like tankless water heaters and furnaces.
✔ Heavy-Duty Fittings: Precision-machined Brass or Carbon Steel nuts with secure, leak-proof hard sealing.
✔ Coating Options: Available in Natural SS, Yellow Epoxy, or Black Spraying for enhanced protection.
✔ B2B Advantage: Factory-direct supply with 100-piece MOQ and full OEM/ODM customization support.

Inquire Now
  • DN10 Stainless Steel Whistle Free Gas Connector
  • DN12 Stainless Steel Whistle Free Gas Connector
  • DN15 Stainless Steel Whistle Free Gas Connector
  • DN20 Stainless Steel Whistle Free Gas Connector

ABOUT HAOYIN

Haoyin (Ningbo) Bellows Technology Co., Ltd. is a professional manufacturer specializing in the R&D, design, and large-scale production of Stainless Steel Gas Connectors (CSST) and Flexible Water Pipes. We are committed to providing safe, efficient, and durable flexible connection solutions for gas infrastructure, residential plumbing, and heating systems worldwide.

Our facility covers over 23,000 square meters (including 18,000 m² of standardized workshops). As a National High-tech Enterprise and Green Factory, Haoyin is fully certified under ISO9001, ISO14001, and ISO45001, with core products meeting rigorous CSA and international standards.

We pride ourselves on a full-process quality management system—from raw material screening and structural design to precision manufacturing and rigorous performance testing. Our flexible manufacturing capabilities allow for quick switching between specifications to meet global customization needs.

Why Partner with Haoyin?

  • Low MOQ: We support small-batch trial production starting from 100 pieces.
  • Rapid Response: Quick turnaround on customer drawings or sample modifications.
  • Full Customization: Bespoke parameters for length, interface forms, thread specifications, and sheath materials.
Haoyin Factory - Professional Stainless Steel Gas Connector and Water Pipe Manufacturer
18,000m² 01

Factory Area

50+ 02

Advanced Equipment

120+ 03

Employees

30+ 04

Monthly Production
(10,000 meters)

Services

Haoyin has an experienced international sales and technical support team proficient in multilingual technical communication, ensuring barrier-free communication in cross-border projects. The projects cover multiple standards such as CSA and EN.

  • Wide Variety

    Full range of Gas & Water Connectors for global markets.

  • Sample & Catalog

    Feel free to contact us for sample and catalog. OEM/ODM available.

  • Production & Delivery

    Flexible production and delivery policies

  • Business

    With 20 years of industry experience, every product meets rigorous technical standards.

OUR FACTORY

OUR CERTIFICATES

  • Q: Are you a direct manufacturer or a trading company?

    A: We are a manufacturer.

  • Q: Can you provide customized products?

    A: Yes, customized products are our core service. We develop and produce products according to the drawings or samples provided by customers.

  • Q: How does your company ensure product quality?

    A: Our products have obtained CSA and CE certifications. With sufficient manufacturing and testing equipment, we conduct detailed inspections on every single product.

GET A QUOTE

If you have any further questions, please contact us and we will be happy to answer them.

Copyright © Haoyin (Ningbo) Bellows Technology Co., Ltd. All Rights Reserved.

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