Pressure:High Place of Origin:Zhejiang, China Model Number:helium gas Material:Steel Brand Name:best gas Use:Industrial leak detection Product name:Wholesale Manufacturer Industry 7440-59-7 99.999% He Pure Helium Gas Model:helium gas Key words:helium gas,electronic gas Color:colorless Delivery way:15 days port: Shanghai MOQ:100pieces
Helium Gas & Cylinder.
Helium / argon mixtures are sometimes used for their higher heat characteristics. Gas mixtures, usually 25% helium and 75% argon are sometimes used and can help to increase travel speeds when AC - gas tungsten arc welding.
R-123 Refrigerant (Hydrochlorofluorocarbon) Overview: R-123 was specifically developed as a replacement for R-11 in low-pressure centrifugal chillers. It is widely used in modern systems engineered with the correct materials and sizes to meet specific cooling needs. However, retrofitting existing R-11 chillers to R-123 may require replacing certain components like seals, gaskets, and other system parts to ensure proper operation and avoid leaks. Key Features: ASHRAE Safety Rating: R-123 has an ASHRAE rating of B1, meaning it has low toxicity but requires more stringent safety measures. Lower personal exposure levels are allowed during normal daily operation, but machinery rooms must follow specific requirements as per ASHRAE Standard 15 (Safety Code for Mechanical Refrigeration). Retrofitting Considerations: When converting from R-11 to R-123, modifications may be necessary, including the replacement of gaskets and seals to achieve optimal operational conditions and leak prevention. Low-Pressure Performance: R-123 is optimized for low-pressure centrifugal chiller systems, providing efficient cooling and performance in large industrial and commercial applications. Safety Requirements: Personal Exposure: Extra precautions must be taken due to the B1 rating, which permits lower exposure levels during service and daily operation. EPA Certification: An EPA certification card is required to purchase R-123 or any other CFC and HCFC refrigerants, in compliance with environmental safety regulations. Applications: Low-Pressure Centrifugal Chillers: R-123 is primarily used in large industrial and commercial systems, providing efficient cooling in these specialized environments. Retrofitting R-11 Chillers: It serves as an effective replacement for R-11, though retrofitting may require careful modification of existing systems.
Products Description Seamless steel cylinder adopt advanced equipment and technology comply withinternational standards, obtain certificates,and is widely used in various fields such as industry,laboratory research,medical treatment etc Cylinder Model Helium cylinder 232-50L Standard EN ISO 9809-1 Material 34CrMo4 Working Pressure 230Bar Length 1455mm Weight 54.5KG Out Diameter 232mm Remarks many other type seamless gas cylinder providing free sample to you
Rotogravure cylinder making line: 1. Electro-plating equipment for rotogravure printing cylinder (Including Washing, Nickel/Copper/Chrome Plating, Degreasing, De-chrome) 2. Rotogravure cylinder grinding machine 3. Copper polishing machine 4. Chrome polishing machine 5. Proofing machine 6. Engraving machine
Qingdao haili gas industry co., ltd is located in huangdao district, qingdao city. We are one of the leading enterprises specialized in developing, engineering, manufacturing and exporting gas cylinder products and industrial gases in china. Main products: 1. Gas products:high purity argonacetylene gaspropaneoxygenhigh purity nitrogenhigh purity heliumheliumco2 shielding gasmixture 2.All kind of high pressure gas cylinder and welded gas cylinders: gb 5099 gas cylinders, dot gas cylinders, iso 9809 gas cylinders, welded gas cylinders for liquid chlorine and liquid ammonia. 3.Liquid nitrogen containers: all kinds of liquid nitrogen containers from 2l to 50l
Supplier: Gas cylinder, oxygen cylinder, argon cylinder, nitrogen cyliner, hydrogen cylinder, helium cylinder, carbon dioxide cylinder, carbon monoxide cylinder, SF6 cylinder, liquid nitrogen container, liquid nitrogen tank
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