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Check Valve for sale Multifunctional slow closing check valve is a multifunctional (slow-closing) check valve with power unit and air travel coupler, and electric/manual valve opening, valve closing, and short-time throttling; the valve seat is inclined, all-metal sealing pair, butterfly .The plate is double-biased, the overcurrent element is equipped with a guide body and an oil pressure slow closing device, which can be divided into: fast/slow two-stage valve closing. This product is a new type of multi-functional anti-hammer energy-saving product. It can be widely used in petrochemical, metallurgy, electric power and urban water supply and drainage systems. When the pump is started or stopped normally, it can also function as a "water outlet valve" and a "check valve". When pumping, it can automatically and orderly (fast/slow two stages) close the valve, fully functioning as a check valve, preventing backflow of water, preventing destructive water hammer, and ensuring the safety of the pumping station. 聽 Features 鈶?Equipped with a power unit and a lost motion coupler, it has the functions of electric/manual valve opening, valve closing, short-term throttling and automatic check. 鈶ll-metal sealing pair is adopted, which has a long service life and is maintenance-free and replacement-free. 鈶he valve seat is inclined, the opening and closing stroke of the valve is short, and the opening and closing performance is good. 鈶?The performance of the valve closing and slow closing device is reliable. Once it is adjusted and matched with the system, it can effectively prevent the occurrence of destructive water hammer. 鈶he butterfly plate is a double offset structure, and the opening and closing movement of the valve is reasonable. 鈶he flow-passing element in the valve cavity is designed according to the principle of fluid mechanics, with good flow resistance characteristics and obvious energy-saving effect. 鈶?Shafting bearing components adopt new self-lubricating materials to ensure that the valve can be opened and closed flexibly without sticking for a long time. 鈶 spring-assisted closing mechanism is provided. 鈶he structure length is in accordance with GB12221 series 14, the structure length is short and the weight is light. 鈶recautions during use are marked with warning signs, directly notifying the front-line operators; the operation is simple and convenient. 聽 Product Specification Transmission MethodConnection TypeNominal Diameter Dn (mm)Pressure Range PN (MPa)Closing angleApplicable MediumApplicable Temperature 鈩?/p> Material ElectrohydraulicFlange500-20000.25-1.6Quick close 65掳 Slow closing 15掳Water, Oil, Air and weak corrosive fluids.-30~160 聽Ductile Iron Carbon steel StandardCJ/T154銆丣S/T5299銆丟B12221銆丟B12380銆?br> GB/T9113銆丟B12386銆丟B/T9131銆丟B/T13927 聽 Application Multifunctional slow closing check valve is installed at the water pump outlet of high-rise building water supply system and other water supply systems.Check Valve for sale website:http://www.sinomachflange.com/valve/check-valve/