Shanghai Nellway Valve Co., Ltd.

Self operated pressure reducing valve

Self-acting Control Valve

Self operated pressure reducing valve

The Self Operated Pressure Reducing Valve is designed for automatic pressure regulation. It does not require external power sources. The valve maintains consistent downstream pressure by self-adjusting based on pressure balance principles. It is ideal for various industrial applications where reliable pressure control is essential. Its straightforward design and robust construction ensure long-term performance with minimal maintenance.
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 pressure reducing valve Introduction and explanation

Table of Contents

Self Operated Pressure Reducing Valve Product Introduction

Product Overview:

The Self Operated Pressure Reducing Valve is designed for automatic pressure regulation. It does not require external power sources. The valve maintains consistent downstream pressure by self-adjusting based on pressure balance principles. It is ideal for various industrial applications where reliable pressure control is essential. Its straightforward design and robust construction ensure long-term performance with minimal maintenance.


Key Features:

  1. Self-Operating Mechanism:

– Autonomous Operation: The valve operates without external power. It relies on internal pressure balance mechanisms. This reduces installation complexity and ongoing operational costs.

– No External Power Required: The valve eliminates the need for electrical or pneumatic actuators. This simplifies the control system and reduces energy consumption.

  1. Pressure Regulation:

– High Accuracy: The valve maintains precise downstream pressure. It handles fluctuating upstream conditions, ensuring stable operation in critical applications.

– Adjustable Set Pressure: The set pressure can be easily adjusted. This allows the valve to meet specific application requirements and offers flexibility for different operational scenarios.

  1. Valve Body Construction:

– Material Options: The valve body is available in cast iron, cast steel, and stainless steel. It can be customized to suit various media and operating conditions.

– Durable Design: The valve is engineered to withstand harsh environments. It provides reliable performance and a long service life.

  1. Performance Characteristics:

– Pressure Range: The valve handles pressures from 0.1 bar to 40 bar. It is suitable for both low and high-pressure applications.

– Temperature Range: The valve operates effectively within -20°C to +300°C. This depends on material and seal selection.

– Media Compatibility: The valve is compatible with gases, liquids, and steam. It ensures versatility across different industrial processes.

  1. Maintenance and Safety:

– Low Maintenance: The simple design reduces the need for frequent maintenance. This minimizes downtime and operational costs.

– Safety Features: The valve includes a self-relieving design. It automatically releases excess pressure, enhancing operational safety.


Advantages and Comparison to Conventional Pressure Reducing Valves:

– Energy Efficiency: This valve functions without external power. It reduces operational costs and energy consumption, unlike conventional valves that may require external power sources.

– Simplified Installation: The absence of external power requirements simplifies installation. It also reduces the complexity of the control system.

– Enhanced Reliability: The self-regulating mechanism provides consistent performance. It reduces the likelihood of failure compared to electrically or pneumatically actuated valves, which can be prone to power supply issues or actuator malfunctions.

– Cost-Effective: Lower upfront and operational costs are achieved by eliminating external actuators and power sources. The low maintenance design further reduces lifecycle costs.

– Versatility: The valve is suitable for a wide range of applications. It includes steam, water, compressed air, and chemical processes, making it more adaptable than many conventional pressure reducing valves.


Applications:

– Steam Systems: The valve regulates steam pressure, ensuring efficient and stable distribution.

– Water Supply Systems: It controls pressure in water networks to protect downstream equipment.

– Compressed Air Systems: The valve maintains air pressure in pneumatic systems, ensuring reliable operation of tools and equipment.

– Process Industries: It is ideal for chemical and petrochemical plants where precise pressure control of various fluids is required.


Working Conditions:

– Pressure Range: The valve is effective for pressures from 0.1 bar to 40 bar.

– Temperature Range: It operates within -20°C to +300°C, depending on material and seal choice.

– Media Compatibility: The valve is suitable for gases, liquids, and steam.


Conclusion:

The Self-Operated Pressure Reducing Valve offers a reliable and cost-effective solution for maintaining consistent downstream pressure. Its self-regulating mechanism and lack of external power requirements make it an excellent choice for various industrial processes. By providing high precision and reducing energy and maintenance costs, this valve stands out from conventional pressure reducing valves. It delivers both operational efficiency and long-term reliability.

Self operated pressure reducing valve Parameter

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