Shanghai Nellway Valve Co., Ltd.

Self-Operated Nitrogen Sealing Control Valve

Self-acting Control Valve

Self-Operated Nitrogen Sealing Control Valve

The Self-Operated Nitrogen Sealing Control Valve is designed to maintain a stable nitrogen blanket in storage tanks and containment systems. This valve ensures consistent pressure within the tank by automatically regulating nitrogen flow. It operates without external power or control signals. This makes it an efficient and cost-effective solution for industries needing inert gas blanketing. These industries aim to prevent contamination, oxidation, or explosion risks.
NameparameterNameparameter
Nominal DiameterDN50-DN500ConnectionFlange(RF,MF,RJ)
Nominal PressurePN10-PN16Drive ModeElectric,Pneumatic,Manual,Hydraulic
Medium Temperature-29-300℃SealingSoft seal/Hard seal
MaterialCarbon steel:A216 WCB;WCC; A105

Stainless steel:304;316;304L;316L

GGG40(GJS-400-15);GGG50(GJS-500-7)

Design StandardsAPI、ANSI、DIN、GB
Working ConditionsChemical; Petroleum; Natural gas; Water; Paper; MetallurgyMediumWater;Gas

Self-Operated Nitrogen Sealing Control Valve Introduction and explanation

Table of Contents

Self-Operated Nitrogen Sealing Control Valve Product Introduction

Product Overview:

The Self-Operated Nitrogen Sealing Control Valve is designed to maintain a stable nitrogen blanket in storage tanks and containment systems. This valve ensures consistent pressure within the tank by automatically regulating nitrogen flow. It operates without external power or control signals. This makes it an efficient and cost-effective solution for industries needing inert gas blanketing. These industries aim to prevent contamination, oxidation, or explosion risks.


Key Features:

  1. Self-Operating Mechanism:

– Autonomous Operation: The valve functions independently. It uses the tank’s pressure to regulate nitrogen flow. This self-regulating design eliminates the need for external power sources or control systems. As a result, installation is simpler, and operational costs are reduced.

– Constant Pressure Maintenance: The valve automatically adjusts to keep a constant nitrogen pressure. This ensures a reliable sealing environment inside the tank. It helps protect the contents from contamination and oxidation.

  1. Precision Control:

– Accurate Regulation: The valve offers precise control over nitrogen flow. It maintains a stable pressure set point. This accuracy is crucial where even slight pressure changes can impact product quality or safety.

– Stable Performance: The valve is designed to react quickly to pressure changes. It ensures consistent performance, even under varying operational conditions.

  1. Valve Body Construction:

– Material Options: The valve body comes in materials like stainless steel, carbon steel, and specialized alloys. This variety offers compatibility with different media and environmental conditions.

– Robust Design: The valve is built to withstand corrosive environments and wear. Its durability ensures long-term reliability and performance in demanding applications.

  1. Performance Characteristics:

– Pressure Range: The valve is suited for low-pressure nitrogen sealing applications. It typically operates within a range of 0.5 to 2 bar (7.25 to 29 psi). This makes it suitable for maintaining the necessary pressure for effective nitrogen blanketing.

– Temperature Range: The valve works effectively across a broad temperature range. The specific range depends on the materials used. This makes the valve adaptable to different environmental conditions.

– Media Compatibility: While primarily designed for nitrogen, the valve can also be used with other inert gases. This provides flexibility in various industrial processes.

  1. Maintenance and Safety:

– Low Maintenance: The self-operated design requires minimal maintenance. This reduces downtime and operational costs.

– Safety Features: The valve includes safety mechanisms to prevent over-pressurization. These features ensure the integrity of the storage tank and the safety of the operation.


Advantages:

– No External Power Required: The self-operated design eliminates the need for external power or control systems. This reduces complexity and costs.

– Precise Nitrogen Pressure Control: The valve excels in maintaining stable nitrogen pressure. This is crucial for effective sealing and protection of stored materials.

– Versatility and Durability: The valve is suitable for a range of inert gas applications. Its robust construction ensures long-lasting performance in harsh industrial environments.

– Safety Assurance: The valve’s ability to maintain consistent pressure and prevent over-pressurization enhances operational safety. It also protects valuable contents.


Applications:

– Chemical and Petrochemical Industries: The valve maintains an inert nitrogen atmosphere in storage tanks. This prevents oxidation and contamination of sensitive chemicals.

– Food and Beverage Industry: It ensures product quality by maintaining a nitrogen blanket over food and beverage products during storage.

– Pharmaceutical Industry: The valve protects pharmaceuticals from moisture and oxidation by maintaining a constant nitrogen seal.

– Oil and Gas Industry: It prevents explosive conditions by maintaining an inert atmosphere in storage tanks and process vessels.


Working Conditions:

– Pressure Range: The valve is suitable for low-pressure applications. It typically operates between 0.5 to 2 bar (7.25 to 29 psi).

– Temperature Range: The valve operates effectively in a wide range of temperatures. It is adaptable to the specific needs of different industrial environments.

– Media Compatibility: While primarily designed for nitrogen, the valve can also be used with other inert gases depending on the application.


Conclusion:

The Self-Operated Nitrogen Sealing Control Valve is an essential component for industries requiring precise and reliable nitrogen blanketing. Its self-regulating operation, combined with robust construction and minimal maintenance requirements, makes it ideal for maintaining a stable and safe environment in storage tanks and other containment systems. This valve ensures consistent nitrogen pressure and protects valuable materials. It offers an efficient and cost-effective solution for various industrial applications.

Self-Operated Nitrogen Sealing Control Valve

Self-Operated Nitrogen Sealing Control Valve Parameter

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