
SO-23001、SO-23101、SO-23201 Self-operated Downstream Pressure Regulator
An energy-saving control valve without external energy supply, used for pressure control devices at the end of non-corrosive liquids, gases and steam with a temperature of ≤ 350℃ and other media.

SO-23002、SO-23102、SO-23202 Self-operated Upstream Pressure Regulator
An energy-saving control valve without external energy sources is used for pressure control devices at the inlet of gases, liquids and steam with a temperature of ≤ 200℃ and other media.

SO-23011、SO-23111、SO-23211 Self-operated Downstream Pressure Regulator with Pilot
An energy-saving control valve without external energy sources is used for pressure control devices at the inlet of gases, liquids and steam with a temperature of ≤ 200℃ and other media.

SO-23012、SO-23112、SO-23212 Self-operated Upstream Pressure Regulator with Pilot
An energy-saving control valve without external energy supply, used for pressure control devices at the valve inlet of non-corrosive liquids, gases and steam with a temperature of ≤ 300℃ and other media.
The self-regulating control valve is an energy-saving control device that does not require external driving energy. It relies on the pressure or temperature of the medium being regulated as its power source, automatically adjusting according to set values based on changes in the medium. This valve integrates multiple functions of detection and control into one unit, forming an independent instrument control system. The self-operated control valve adopts a standard modular design. Our products are characterized by: standardization, serialization, and generalization. This achieves a high level of these three aspects. The components of the self-operated pressure regulator and differential pressure regulator are interchangeable. If the control conditions change, the spring & diaphragm components can be easily replaced. The accuracy of the self-operated control valve surpasses that of similar products, and it also offers high stability. Diversified product series: self-operated pressure regulator, self-operated micro-pressure regulator, self-operated temperature regulator, self-operated flow regulator, self-operated nitrogen-sealing valve, and self-operated (combined) regulator...
● Modular Design: Product standardization, serialization, and generalization, with interchange.able components.
● Special Conditions: Based on practical engineering issues and to meet the differentiated needs ofcustomers, we provide highly personalized solutions. Our products are widelyapplicable in various industries such as: petroleum, chemical, pharmaceuti-cals, heating, and water conservancy. In particular, the self-operatednitrogen-sealing valve is at the forefront of industry technology for pressureregulation devices in storage tanks.
● Energy Saving: No external driving energy is required, the power source relies on the pressureor temperature of the regulated medium..
Material: WCB、CF8、CF8M
Nominal Size: DN15~DN350
Pressure Rate: PN1.6~4.0Mpa
Voltage Regulating Range:0.005~0.035Mpa、0.015~0.15Mpa、0.01~0.07Mpa、0.05-0.3Mpa、0.1~0.6Mpa、
0.3~1.2Mpa、 0.8-1.6Mpa
Temperature Range: ≤350℃
Operator: Self-venting type
Application range: It is applicable to the automatic control systems in industrial production processes such as water supply, petrochemical, heating and cooling, energy, papermaking, food processing, and steel manufacturing, where there is no (or cannot be used) driving energy. It is particularly suitable for the automatic control system devices in the gas production and transportation or gas supply and transportation.
Compared with other valve products, High Temperature and High Pressure Slab Gate Valve is characterized by high temperature and high pressure. Among them, grooved flange is designed as a unique self-tight-seal structure. The higher the pressure, the more reliable the sealing performance. Due to the characteristics of performance and technical characteristics and working conditions, the product has also formed the characteristics of other products that cannot be replaced. This type of valve should generally be installed horizontally in the pipeline. The high-temperature and high-pressure gate valve has the design characteristics of ordinary wedge-type gate valves. The valve body has a guide mechanism to prevent rotation when the gate is turned on or closed to ensure that the sealing surface of the valve seat is accurate accordingly. At the same time, the wedge valve does not rub with the valve seat before turning off, thereby reducing the wear of the cover and effectively extending the service life of the valve.
The quality of forged steel parts is higher than that of cast steel parts, and they can withstand large impact forces. Their plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of forged steel stop valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel stop valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and their sealing performance is much better than that of cast steel stop valves, and their service life is longer. Like other stop valves, they are subject to the restrictions of the flow direction of the medium. Forged steel stop valves can be divided into straight-through stop valves (type stop valves) and direct-flow stop valves (Y-type stop valves) according to installation positions.
Designed specifically for industrial ventilation and gas transportation systems, it features a high-strength carbon steel or stainless steel valve body, equipped with a low-torque sealing structure, enabling efficient regulation of large flow of gas media. The optimized butterfly plate design is combined with wear-resistant sealing rings, ensuring reliable performance under harsh conditions such as high temperatures and dust. It is suitable for ventilation and dust removal systems in industries such as power plants, metallurgy, and chemical engineering