Basic Info.
Model NO.
NKZ964H NKZ961H
Temperature
High Temperature
Pressure
High Temperature
Seal Surface
Wedge Gate Valve
Thread Position of Valve Rod
Outside Gate Valve
Usage
Temperature Control
Application
Water Industrial Usage
Transport Package
Wooden Cases
Product Description
Product Name: Electric Vacuum Welding Gate Valve
Product model: NKZ964H NKZ961H
Product caliber: DN50-800
Product pressure: 1.0-32.0 Mpa
Product 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 Valve
Nominal Pressure PN/MPa | Test Pressure/MPa |
Shell strength test | Upper Sealing test | Sealing test |
2.5 | 3.8 | 2.8 | 2.8 |
4.0 | 6.0 | 4.4 | 4.4 |
6.4 | 9.6 | 70 | 7.O |
10.0 | 15O | 11.O | 11.O |
Vacuum Welding Gate Valve Main Parts Material
Part Name | Valve Body,
Bonnet | Stem | Flashboard | Sealing Surface | Stem Nut | Packing |
NKZ64H
NKZ61H-C
NKZ964H-C
NKZ461H | WCB | 2Crl3 | 25 | H:Alloy Steel
| Aluminum bronze | Expanded Composite Graphite |
NKZ64
NKZ61Y-I
NKZ964-I
NKZ961 | Chromium-molybdenum steel | 20CrlMo1VA
38CrMoAlA | Chromium-molybdenum steel | Y:Cemented carbide |
NKZ61W(Y)
NKZ64W(Y)-P
NKZ964W(Y)-P
NKZ961W(Y) | CF8 | F304 | CF8 | H:Alloy Steel |
Address:
Yuxiang Street, Wangjiazhuang Village, Luancheng District, Shijiazhuang
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components
Company Introduction:
Our company is specialized in different kinds of products. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we make our products with good quality at the reasonable price.
