SS316L Ultra High Purity Coaxial Fitting Elbows Stainless Steel High Quality Coaxial Tubing Elbows BA/EP Ultra-High Purity (UHP) Tubing

Model No.:FEW02J

SKU:FEW02J

Size.:

Materials:

Finishing:

What is Coaxial stainless steel tubing & COAX tube fittings?
Coaxial stainless steel tubing & fittings are designed for delivery of special gas such as volatile or toxic gases. This product is known as Containment tube also, and is called COAX tube and COAX fitting for short sometimes.

A coaxial tube usually is consist of a process tube and a safety tube. The process tube is the inner tube, while the safety tube is the outer tube. So coaxial tube system is also known as twin wall tube system or double wall tube systems. The function of spacers is to center the process tube and ensure the gas flow between the outer and inner tube. They also act as a safety mechanism in the event of a process tube leak. Any escaping medium flows (gas or liquid) into the safety space, where it can be neutralized and safely discharged from the system.
Process tubes are supplied with the electropolished surface finish and specifications as our single wall electro polished tube and EP fittings. Our factory has a full range types of coaxial tube fittings (a fitting-within-a-fitting) such as 90-degree elbows, 45° elbows, equal tees, reducing tees and reducers.

Product Overview
* Material: High quality 316L stainless steel, equivalent EN DIN 1.4404; 304L /1.4307 is available on request.
* Size Range: 1/4″ to 4″ on request
* Surface finish:
The inner tube electro polished with roughness Ra 0.25μm；
The outer tube bright annealed with inner roughness Ra 0.6μm.
* Both process tube and safety tube are prepared for orbital welding
Technical Standards
Coaxial Tubes and COAX tube fittings are prepared for orbital welding acc. to the following international standards:
* Coaxial Tubes
acc. to ASTM A 269 / A270 / A 632, DIN EN 10217-7 / 10216-5.
* Coaxial Tube fittings
Pre-material acc. to ASTM A 269 / A 632, DIN EN 10217-7 / 10216-5
Other standards available upon customers’ request.
Materials
Welded or seamless austenitic stainless steel tubes & fittings (for inner process tube and outer safety tube) are available in the following materials:
*1.4404 / UNS S31603 (316L)
*1.4435 / UNS S31603 (316L)
*UNS S31603 (316L)

Quality Inspection
Quality and Inspection procedures for Coaxial tubing & fittings:
* Visual Inspection
* Endoscopic inspection of bright finished tubes
* Dimensions inspection
* Roughness measurements
* Chemical Analysis: Spectral analysis
* Mechanical properties test

SS316L Ultra High Purity Coaxial Fitting Elbows Stainless Steel High Quality Coaxial Tubing Elbows BA/EP Ultra-High Purity (UHP) Tubing

Model No.:FEW02J

SKU:FEW02J

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