Responding to the cleanliness required for semiconductor manufacturing equipment. Made of stainless steel 316L, for high-purity lines, welded compact check valve CMW series.
The CMW series is a compact check valve (non-return valve) developed for high-purity applications. Its fully welded design ensures that fluids are securely contained without external leaks. Electro-polished versions are also available. <Features> - Meets the cleanliness requirements of semiconductor manufacturing equipment - Fully welded design that securely contains fluids without leaks - Maximum allowable operating pressure: 20MPa - Maximum allowable back pressure: 20MPa - Operating temperature range: -10 to 80℃ - Cracking pressure: 0.014MPa (2psi) - Reseal pressure: 0.028MPa (4psi) - Surface finish: 5u inch (electro-polished finish) 10u inch (mechanically polished finish) - Sizes: 1/4", 1/2" - Connections: male face seal, female face seal, butt weld - O-ring material can be selected as an option (Fluorocarbon FKM, Polychloroprene CR, Perfluoroelastomer, EPDM) *For more details, please download the PDF or feel free to contact us.
Inquire About This Product
basic information
For more details, please download the PDF or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
This is a check valve used in high-purity lines for semiconductor devices and peripheral piping.
catalog（1）
Download All Catalogs
Company information
Ham-Let, headquartered in Israel, has local subsidiaries in the United States, Canada, the United Kingdom, Germany, France, the Netherlands, Russia, Singapore, and Japan. The company specializes in products such as fittings, process valves, manifolds, ultra-clean diaphragm valves, high-purity fittings, pressure gauges, flexible hoses, filters, relief valves, sampling cylinders, and flanges, serving various industries including energy, oil, gas, turbines, chemicals, petrochemicals, natural gas, electronics, and analysis. It is a global company actively promoting M&A worldwide to increase its workforce and expand its business. Ham-Let Motoyama Japan, the Japanese branch, primarily operates in the electronics sector through direct sales and approximately 60 agents and distributors established nationwide. The company's main products for the electronics sector, ultra-clean diaphragm valves and high-purity fittings, are supplied from the Israeli headquarters factory via air freight twice a week, ensuring a steady supply and inventory, and are shipped daily nationwide from the logistics center in Tokyo. In recent years, the company has been focusing more on general industry and plant engineering by leveraging the resources of its group companies.