NKZ41H vacuum isolation gate valve Product Overview Vacuum isolation gate valve connection in the form of sub-flange, welding two, the drive mode manual, electric two. The valve is suitable for operating temperature ≤ 425 ℃ and ≤ 550 ℃, the working medium is water, steam or air pipe, as the opening and closing device; especially suitable for thermal power plant condensing and vacuum vacuum system, vacuum isolation seal. NKZ41H vacuum isolation valve structural features 1, the design of a vacuum sealed packing room, the system isolated from the atmosphere, with good environmental performance. 2, selection of sophisticated materials, all relevant standards at home and abroad, the overall high-quality materials. 3, advanced and reasonable pairing pair, improve the sealing performance, long service life. 4, the opening and closing pieces of parallel gate with two-way flexible seal, small friction, easy opening and closing, easy maintenance, reliable sealing, excellent performance. 5, the stem by quenching and nitriding surface treatment, good corrosion resistance, scratch resistance and wear resistance. 6, flange gasket composite materials, expansion coefficient, airtight, and ensure the system and the atmosphere isolated and reliable.