Self operated nitrogen sealing valve
- Product ItemALKV1078
Description
Product Features
1、Composed of control valves, actuators, pressure springs, controllers, pulse tubes, and other components.
2、Mainly used to maintain a constant pressure of the protective gas (usually nitrogen) at the top of the container, in order to avoid direct contact between the materials inside the container and air, and to prevent material volatilization and oxidation.
3、Gas seal protection system suitable for various large storage tanks. This product has the characteristics of energy saving, sensitive action, reliable operation, and convenient operation and maintenance.
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Product Display |
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Flange connection |
Pneumatic thin film actuator |
Stable pressure regulating nut |
Precision cast thickened valve body |
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Stainless steel flange, earthquake resistant and stable, galvanized and rust resistant, Wear resistance, tensile strength |
Precision investment casting, Three sprays and three baked, sun resistant and corrosion-resistant, resistance without deformation |
When the pressure behind the valve is unstable, fluctuates frequently, and the valve stem keeps fluctuating up and down, the adjusting screw needs to be adjusted |
Select high-quality steel and conduct strict pressure testing on each valve body to ensure no leakageductility, High strength, high temperature resistance, not easy to rust |
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Function Display |
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Nitrogen release valve |
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Internal compression spring |
Diaphragm |
Valve core |
Valve seat |
Membrane cover |
Valve stem |
Flange |
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Function Display |
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Nitrogen supply valve |
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Internal compression spring |
Adjustable flow device |
Pressure reducing valve |
Main valve |
Detecting actuators |
Main valve actuator |
Flange |
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Product Information |
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Customized processing |
Yes |
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Product name |
Self operated nitrogen sealing valve |
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Nominal pressure |
1.6MPa/4.0MPa |
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Nominal diameter |
DN15~DN50 |
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Discharge Coefficient |
1.0, 2.5, 4.0, 6.3, 8/8, 16, 25, 32, 41 |
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Valve type |
Precision cast valve body |
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Connection form |
Flange connection/clamp connection/NPT threaded connection |
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Body material |
304、316、316L |
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Internal material |
304、316、316L |
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Traffic characteristics |
Quick open |
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Allowable leakage amount |
Zero Leakage |
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Seal material |
FKM (fluororubber), NBR (nitrile rubber)，EPDM (Ethylene Propylene Rubber) |
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body material |
-17~+100℃（FKM）、-40~80℃（NBR）、-45~100℃（EPDM） |
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Lower working pressure limit in front of the valve |
≥1.8bar |
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High working pressure limit in front of the valve |
≤6bar |
