Liquid Gas Cylinder with Inner Vaporizer

 

Company profile
Jinan Deyang cryogenic technology Co., LTD. specialized in the R&D and production of cryogenic insulated cylinders, cryogenic equipment. Our crogenic insulated cylinders (Dewar Flask) has the property of low evaporation rate, long vacuum guarantee period, high vaporization rate, etc. And have good effect and feedback in the industry of biological pharmaceutical, medical and health care, machinery manufacturing, energy, electronic industries, and had won high praise from the customers in domestic and the asian market. 

1.Quality:We guarantee the quality of our products,if you bought our products,whenever you have any question about our products,ps tell us,we will  never caused products trouble for any customers.

2.Strictly quality control systerm,comprehensive quality inspection before delivery ,responsible after-sales service and long-history production experience to make sure each unit of our products are qualified when customers receive our products.



Welding process:
1.The production process USES advanced plasma welding, MIG welding and TIG welding technology to guarantee the welding quality effectively.

2.The combination of manual process and automation technology, obtain the ideal appearance quality.

3.The unique vacuum  process makes the vacuum attenuation to the minimum and guarantees the vacuum quality.

4. Fully automatic copper tube brazing machine can effectively control the gasification quantity and guarantee the gas quality.

5.Automatic on-line detection of flaw detector, effective guarantee welding quality.


The valve detail:



Strict factory inspection:

1.Complete quality control system to ensure the stability of production quality.

2.Third party supervision and inspection to maintain the notarization of quality certificate.

3.Vacuum test:In the manufacturing process of vacuum system, container and device, the vacuum tightness of them and the position of leak hole are determined by using the vacuum leak detection technology, so that measures can be taken to seal the leak hole so as to maintain the vacuum state in the system, container and device.

4.Helium mass spectrometer leak detector for detection of tightness:Helium mass spectrometer leak detector is a special instrument  for leak detection with helium gas as leak indicator. It has stable performance and high sensitivity

5.Pressure test:The test temperature shall be in accordance with gb12137-89 and the related test pressure shall be strictly specified in accordance with the requirements of pattern design.

6.Tightness test:   The  tightness test of welding insulated ylinder USES nitrogen cylinder as the filling air, the nitrogen purity is 99.9%, the accuracy of pressure gauge used in the test shall not be lower than 1.5, the dial diameter shall not be lower than 100 mm, the gauge range shall be between 1.5 and 2.5 times of the test pressure.


Guaranty:
Three Years
For the tanks vacuum,we provide three years guarantee after customers received the tanks. In three years,we provide vacuumize servise for free. One YearFor spare parts,we provide one year guarantee after  customers received the tanks. In one year,we will send the spare parts to customers for free once spare parts broken.