Hebei Qianfeng Metallurgical Technology Co., Ltd.  

Product Name: Electric Vacuum Welding Gate Valve Model NO.: NKZ964H NKZ961H Application: Water Industrial Usage Usage: Temperature Control Thread Position of Valve Rod: Outside Gate Valve Seal Surface: Wedge Gate Valve Actuator: Electric Pressure: High Temperature Connection Form: Welding Material: Carbon Steel Type: Direct-acting Temperature: High Temperature Media: Water Trademark: qian-gong-feng Transport Package: Wooden Cases Specification: DN100-1200 Origin: Hebei HS Code: 8481804090 Product Description Product Name: Electric Vacuum Welding Gate ValveProduct model: NKZ964H NKZ961HProduct caliber: DN50-800Product pressure: 1.0-32.0 MpaProduct Material: Cast Steel, Stainless Steel, etc.Driving mode: manual, electric, pneumatic, gear transmission.NKZ961H (NKZ964H) vacuum gate valve is connected by flange and welding, and driven by manual and electric. The valve is suitable for pipes with working temperature (< 425 C) and (< 550 C) and working medium (water, steam or air) as starting and closing devices, especially for steam turbine condensation and vacuum negative pressure systems in thermal power plants, and plays the role of vacuum isolation and sealing.1. Vacuum sealed packing chamber is designed to isolate the system from the atmosphere, which has good environmental protection performance.2. Material selection is exquisite, in line with the relevant national and international standards, and the overall quality of materials is high.3. Sealing pairing is advanced and reasonable, which improves the sealing performance and has a long service life.4. The hoist adopts two-way elastic seal with parallel gate, which has small friction, easy hoisting and closing, convenient maintenance, reliable sealing and excellent performance.5. The valve stem has good corrosion resistance, abrasion resistance and wear resistance after conditioning and surface nitriding treatment.6. Flange gaskets are made of composite materials, which have high expansion coefficient and good air tightness and ensure reliable isolation of the system from the atmosphere.Main Performance Specification of NKZ961H (NKZ964H) Vacuum Gate Valve Test Pressure of NKZ961H (NKZ964H) Vacuum Gate ValveNominal Pressure PN/MPaTest Pressure/MPaShell strength testUpper Sealing testSealing test2.53.82.82.84.06.04.44.46.49.6707.O10.015O11.O11.OVacuum Welding Gate Valve Main Parts MaterialPart Namevalve Body,BonnetStemFlashboardSealing SurfaceStem NutPackingNKZ64HNKZ61H-CNKZ964H-CNKZ461HWCB2Crl325H:Alloy SteelAluminum bronzeExpanded Composite GraphiteNKZ64NKZ61Y-INKZ964-INKZ961Chromium-molybdenum steel20CrlMo1VA38CrMoAlAChromium-molybdenum steelY:Cemented carbideNKZ61W(Y)NKZ64W(Y)-PNKZ964W(Y)-PNKZ961W(Y)CF8F304CF8H:Alloy Steel