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CSST Gas Line

3/4" inner diameter (16mm) x 20mm outer diameter,Corrugated Stainless Steel Tubing (CSST), Features a UV-resistant sheath, making it durable in various environments.
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·High-Precision Raw Material Selection and Preprocessing

·Special Stainless Steel Substrate**: Selected high-quality SUS304 stainless steel, featuring high strength, high-temperature resistance (-20°C to 350°C), and corrosion resistance. It can withstand sulfide corrosion in gas, with a lifespan of over 30 years.

·*Intelligent Preprocessing System: Utilizes laser cutting and CNC punching technology for precise raw material cutting, ensuring uniform pipe thickness; the surface undergoes electrolytic polishing to eliminate microscopic defects and enhance fatigue resistance.


·Fully Automatic Corrugated Forming Process

·Hydraulic Servo Forming Technology: Employs multi-axis linked CNC equipment, using a high-pressure hydraulic system to press the pipes into a corrugated structure, with corrugation depth and spacing errors controlled within ±0.1mm, ensuring a perfect balance of flexibility and pressure resistance (pressure strength ≥ 6MPa).


·Seamless Welding and Sealing Technology**

·Seamless Welding: Achieves  seamless connections between the corrugated pipes and joints with an accuracy of 0.02mm, with weld penetration reaching 100% of the wall thickness, eliminating the risks of false and missed welds, and achieving a 100% pass rate in airtightness testing.

·Triple Sealing Assurance: Combines metal sealing rings, high-temperature silicone gaskets, and self-locking buckle structures to achieve physical sealing, elastic sealing, and mechanical locking for triple protection, minimizing leakage risks.


·Quality Control System: Each corrugated pipe undergoes stringent quality inspection

·Full Process Digital Traceability

- From raw material batch numbers to production equipment parameters, all data is recorded in the MES system, achieving traceable quality; each corrugated pipe is equipped with a unique QR code, allowing scanning to view the complete production record.


·Six Stringent Testing Checkpoints

·Raw Material Screening: Spectrometer analyzes stainless steel composition to ensure nickel and chromium content complies with ASTM A240 standards.

·Online Flaw Detection: Ultrasonic Testing (UT) and Eddy Current Testing (ET) run in parallel to monitor internal defects in real time.

·Burst Pressure Testing: Simulates 10 times the working pressure (60MPa) for 30 minutes to verify ultimate pressure resistance.

·Airtightness Testing: Helium mass spectrometer leakage detection measures leakage rate, with precision reaching 1×10⁻⁸ Pa·m³/s, far exceeding industry standards.

·Fatigue Life Testing: Conducts 50,000 cycles of bending tests to verify aging resistance and long-term reliability.


Features:

• Corrosion & UV Resistance:

• Made from corrosion-resistant stainless steel.

• Features a UV-resistant sheath, making it durable in various environments.

• Versatile Applications:

• Suitable for indoor/outdoor natural gas or liquid propane applications such as fire pits, gas stoves, water heaters, grills, etc.

• Can be used for installations in exposed areas or embedded behind walls in concrete or drywall.

• Ideal for underground installations and handling corner bends without extra joints.

CSST Gas Line2

Natural Gas Hose Flexible1

CSST Gas Line tube

AIR-TIGHT TESTING

Advantages of Stainless Steel Gas Hose:

•   Corrosion Resistance:

•    Stainless steel resists corrosion from gases and environmental exposure (moisture, salt, chemical fumes).

•   High Temperature Tolerance:

•    Operates effectively in high-temperature environments, making it suitable for industrial processes or systems requiring elevated temperatures.

•   Strength and Durability:

•    Stronger than rubber or plastic hoses, resistant to collapsing under high pressure.

•   Hygienic and Easy to Clean:

•    Stainless steel is non-porous and resists bacterial contamination, making it ideal for sanitary applications.




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The company's main products include metal outdoor storage boxes, metal deep-drawn parts, metal Heatexchanger and various metal pipelines. Our products have been widely used in outdoor equipment, coffee machines, medical devices, as well as various electrical enclosures and equipment components.

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Tel: +86-574-8813-2830
Phone: +86-159-6789-1314
Address: No. 368 Qiushi Road,Wangchun Industrial,Ningbo China.
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