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Premium Stainless Steel Instrument Tubing & Fittings

High purity tubes, coaxial fittings, VCR type connectors, and nickel-chromium-molybdenum alloys engineered for precision and reliability in critical industrial applications.

Stainless Steel Instrument Tubing

About Gas-Piping.com

As a leading supplier of high-performance fluid system components, we specialize in stainless steel instrument tubing, high purity tubes, and advanced tube fittings for industries requiring precision, durability, and contamination control.

Trusted by Global Industries

KUNSHAN DEMA PIPELINE SYSTEM CO.,LTD is a professional manufacturer based in China, dedicated to delivering high-quality pipeline solutions for over a decade. Our products are widely used in semiconductor, pharmaceutical, petrochemical, and energy sectors.

We adhere to international standards including ASTM A269 and produce seamless SUS316L/304L stainless steel tubing with Bright Annealed (BA) and Electrolytic Polished (EP) finishes for maximum purity and corrosion resistance.

  • ISO-Certified Manufacturing
  • OEM/ODM Support Available
  • Global Export Experience
Factory and Production Line

Our Product Range

Explore our comprehensive catalog of high-performance tubing and fittings designed for reliability, leak-tight integrity, and long-term service in demanding environments.

TP316L/304L ASTM A269 Instrument Tubing (BA)

TP316L/304L ASTM A269 Instrument Tubing (BA)

Seamless stainless steel tubing with bright annealed finish. Ideal for instrumentation and process control systems.

Coaxial Equal Tee

Coaxial Equal Tee

Precision coaxial fitting for dual containment systems. Ensures leak-free performance in high-purity applications.

Reducing Tee

Reducing Tee

High-pressure reducing tee fitting for seamless flow transition. Available in various sizes and materials.

Union Male/Female Connector Elbow Tee

Union Male/Female Connector

Durable union connectors with male and female threads. Designed for easy installation and maintenance.

90° Elbow Fitting

90° Elbow Fitting

Stainless steel 90-degree elbow for tight-radius installations. Smooth internal finish reduces turbulence.

Coaxial 90° Elbow

Coaxial 90° Elbow

Dual-wall elbow for secondary containment. Prevents leaks and enhances safety in hazardous environments.

High Purity Tube (EP)

High Purity Tube (EP)

Electrolytic polished tubing for semiconductor and pharmaceutical applications. Ultra-low surface roughness.

Equal Cross Fitting

Equal Cross Fitting

Four-way equal cross connector for complex piping networks. Precision-machined for consistent performance.

Nickel-Chromium-Molybdenum Alloy Tube (BA)

Nickel-Chromium-Molybdenum Alloy Tube (BA)

Corrosion-resistant alloy tubing for aggressive chemical environments. Excellent thermal stability.

VCR Type Fittings

VCR Type Fittings

Metal gasket-sealed fittings for ultra-high purity and high-pressure systems. Leak-tight down to helium levels.

Reducer Fitting

Reducer Fitting

Concentric and eccentric reducers for diameter transitions. Smooth bore design minimizes flow disruption.

Lok Fittings

Lok Fittings

Re-usable tube fittings with gripping ferrules. Ideal for instrumentation and hydraulic systems.

Why Choose Us?

We combine advanced manufacturing, strict quality control, and global logistics to deliver reliable fluid system components on time, every time.

Quality Assured

Every product undergoes rigorous testing and inspection to meet international standards.

Fast Delivery

Efficient production and logistics ensure timely delivery to customers worldwide.

OEM/ODM Support

Custom design and manufacturing services tailored to your specific requirements.

Global Reach

Trusted supplier to clients across North America, Europe, Asia, and the Middle East.

10+
Years Experience
50+
Countries Served
1000+
Products Available
99.8%
Customer Satisfaction

Frequently Asked Questions

What materials do you offer for instrument tubing?

We offer TP316L/304L stainless steel tubing per ASTM A269, as well as nickel-chromium-molybdenum alloys like C276 and C22 in BA and EP finishes.

Are your fittings compatible with VCR standards?

Yes, our VCR type fittings are manufactured to meet industry-standard dimensions and sealing performance for ultra-high purity applications.

Do you provide custom sizes or OEM manufacturing?

Yes, we offer OEM/ODM services and can produce custom tubing lengths, diameters, and fittings based on your drawings or specifications.

What surface finishes are available?

We provide Bright Annealed (BA) and Electrolytic Polished (EP) finishes to ensure low surface roughness and high corrosion resistance.

How can I request a quote or place an order?

Visit gas-piping.com to submit your requirements or contact our sales team directly through the website.

Get in Touch

Have questions about our products or need a custom solution? Reach out to us today.

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