SUS316L Metal Vacuum Welded Corrugated Pipe 37-19

Introduction of SUS316L Metal vacuum welded corrugated pipe 37-19

Overall structure and production process

The entire product consists of an 8-wave edge welded corrugated tube and a precision machined installation base assembly, all of which are designed with 316 stainless steel integration.

1. Processing technology of corrugated pipe

Adopting the ultra-thin stainless steel sheet laser edge welding forming process, precise edge sealing welding is carried out layer by layer to form 8 sets of uniform ripples. The inner and outer diameter dimensions are strictly controlled, and the ripple wrinkles are smooth without virtual welding or missed welding. Different from traditional hydraulic formed corrugated pipes, the edge welding structure has uniform wall thickness, stronger consistency in expansion and contraction, and zero leakage in air tightness.

2. Precision machining technology for the base

The flange base and positioning pin are all CNC precision machined, with aperture and pin diameter tolerances controlled at the micrometer level. The assembly fillet and fitting gap are strictly processed according to the drawing standards. The corrugated pipe and base can be seamlessly assembled without the need for additional gasket modification. After assembly, the overall coaxiality is high, and there will be no deviation or jamming.

3. Complete integrated design

The corrugated tube and base are customized parts that can be pre assembled before leaving the factory. The integrated sealing structure eliminates the need for customers to perform secondary welding and modification processes. Standardized drawings are used for mass production, with uniform batch sizes and strong interchangeability.

Outstanding elasticity and sealing performance of edge welded corrugated pipes

The 8-wave compact structure provides sufficient expansion and contraction compensation in a narrow installation space, which can offset the stress caused by equipment thermal expansion and contraction, mechanical vibration, and installation misalignment, and has good shock absorption and buffering effects. The fully welded sealed structure completely isolates gas and liquid media, with zero leakage, and is the core sealing elastic component of precision instruments.

Precision machining base, high assembly accuracy

Standardization of the dimensions of the base positioning pin and flange hole, precise matching of the pin hole, tight fitting after assembly, minimal clearance, and no tilting or eccentricity of the corrugated pipe during operation, greatly reducing fatigue loss and improving the overall service life of the product; The flange base can be directly bolted to the instrument chamber for easy and secure installation.

Stable and durable, with a long fatigue life

The welding process is mature, the ripple force is uniform, matched with high-precision base limit, the reciprocating expansion fatigue frequency is high, the elasticity does not decay under long-term working conditions, and it is not easy to crack or leak gas. It is suitable for industrial instrument equipment that operates continuously for 24 hours.

Main application scenarios

This complete set of edge welded corrugated tube assembly is commonly used as an internal sealing compensation component for various precision industrial instruments

1. Internal elastic sealing components of magnetic flap level gauge and float level sensor;

2. Core isolation bellows for pressure transmitters and miniature pressure sensors;

3. Sealing expansion parts for vacuum valves and micro hydraulic control valves;

4. Food and pharmaceutical testing equipment, laboratory precision fluid instruments;

5. Small scale chemical and water treatment online monitoring instruments.

Adapt to medium and low pressure, mild corrosive medium environments; Not suitable for extreme corrosion conditions such as concentrated hydrofluoric acid and high concentration strong oxidizing acids.