Concentration of immersion chemical Citric acid: 50,000 ppm Sodium hypochlorite: 3,000 ppm Immersion temperature 25℃ (ambient temperature) Immersion duration 1,200 hours(equivalent to 10 years: Chemical cleaning for 2 h/week) , Effective length of membrane 1500mm Filter system Suction from the inner side of the membrane Suction pressure -60kPa Substance to be filtered Raw water sludge…
■ Follow fibers in 3D network structure thanks to our unique membrane production technology ■ Enhanced effects of backwash thanks to its asymmetric structure ■ High membrane flux and extended service life Basic Information Documents and Catalogs Basic specifications Membrane material PSU Cutoff molecular weight 150,000 Da Nominal membrane area 45 ㎡ Pure water flux…
Long-life, highly reliable lubricants effective even under extreme conditions. NOK markets special lubricants imported or manufactured by NOK Kluber Co., Ltd., a joint venture between NOK CORPORATION and Germany-based Kluber Lubrication LTD.The special lubricants we deal in possess a strong resistance to very high and low temperatures, high speed, high load as well as tolerance…
Rope-operated manual starting devices for compact internal combustion engines. Used to start electric generators, lawnmowers, and farm engines. Recoil starters are rope-operated manual starting devices for compact internal combustion engines, and are commonly used to start electric generators, lawnmowers, outboard motors, and farm engines.NOK’s recoil starters are highly regarded for their durability, reliability, stable functionality,…
Valves to control the direction of cooling media flowing in compressors. There are two major categories: single-body machined components, such as suction valves and discharge valves; and various special high precision machined products. NOK’s compressor valves are used to control the coolant flowing direction in the compressor in a car air-conditioner, a room air-conditioner, a…
Used for equipment’s elastic joint sealing and displacement absorption. They excel in consistent displacement and corrosion resistance. Metallic bellows exhibit resistance against highly corrosive fluids and radioactive fluids. They have been developed as ideal sealing alternative to elastomer and gasket materials to be used for equipment running under high-temperature and high-pressure conditions.Actual applications range from…
Pressure accumulators, a mechanism that uses the compressibility of nitrogen gas. They are used for capacity correction and pulsation absorption in fluidic circuits. Accumulators are an essential function to enable the potential energy of fluids to act effectively, and maintain high-accuracy operations of oil, water and other fluidic circuits in a safe and economic manner.…
Electromagnetic valves used mainly for oil pressure control and gas flow control for automobiles. With built-in resin components, they are compactly designed and highly reliable. Our actuators, mainly used for oil pressure control and gas flow control for automobiles, excel in resistance to pressure. Incorporating resin components to a large extent, they are compact, lightweight,…
NOK provides rubber vibration and sound isolators for automobiles and precision information devices. Original programs developed by NOK can be used to analyze and tune the products. NOK’s high-quality rubber vibration isolators with distinctive features are produced on the solid foundation of the technical expertise, vast experience and remarkable achievements of Freudenberg, the top rubber…
The phenolic molding materials marketed by NOK are high-quality molding materials manufactured by Otalite Co., Ltd. The materials are dust-free, easy to handle, and easy to work with. The molding materials have been developed by combining special technologies and have been supplied to customers in Japan and in many other countries.With great resistance to heat,…
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