Power Station Gate Valve

There are two standard forms of high temperature and high pressure power station gate valves, one is the imported type that follows ANSI B16.34 and JIL 1E101 standards, and the other is the national standard type that follows JB3595 standards. The temperature-pressure levels they follow are consistent, and there is a certain interchange relationship in some pipelines. The middle part adopts a valve coverless pressure self-tightening type, which has good sealing performance under high temperature and high pressure conditions. There are two materials for the self-sealing ring, one is low carbon steel, and the other is flexible graphite sandwiched with 316 wire (mesh). The upper layer of the sealing surface is welded with drill-based cemented carbide, and the pure metal layer after processing is ≥3mm, which is wear-resistant, high temperature resistant, corrosion-resistant, and has a long service life. The two ends of the branch pipe are welded structures, and the weld groove can be made according to standards or user requirements. It is suitable for high temperature and high pressure water, steam, oil products, and superheated steam pipelines in thermal power plants, petrochemicals, metallurgy, etc.

※ Structural Features

1. Self-tightening connection without valve cover in the middle
2. The gate valve is a wedge-type elastic single gate or wedge-type double gate structure
3. Cobalt-based hard alloy is welded on both sides of the gate/valve seat
4. High temperature creep resistance design
5. The valve stem is made of nitrided precipitation hardened stainless steel
6. There are manual, gear (bevel gear and spur gear) transmission, electric

※ Main Parts and Materials

※ Product Application
Petroleum and Chemical Industry
In the petroleum, natural gas, chemical and other industries, electric gate valves are often used in oil pipelines, gas pipelines, chemical raw material pipelines, etc. Through electric actuators, operators can easily remotely control the opening and closing of valves to ensure the stability of the process flow.
Power Industry
In the cooling water system, steam pipeline, boiler water pipeline and other links of the power plant, electric gate valves are used to control the flow of fluids, especially in occasions where frequent start and stop and flow adjustment are required, electric gate valves can respond quickly and operate accurately.
Water Treatment Industry
In sewage treatment and water supply systems, electric gate valves are often used in water pipelines, regulating tanks, water storage tanks and other links. Through electric control, the interception of water flow and the opening of channels can be automatically managed and remotely controlled.
Metallurgy and Steel Industry
In the process of metallurgy and steel production, electric gate valves are used in high-temperature and high-pressure steam pipelines, cooling water systems, etc., which can ensure the safe control of fluids and the stable operation of pipeline systems.
Food and Pharmaceutical Industry
In the food and pharmaceutical industry, electric gate valves are used for fluid control such as material transportation and liquid pipelines, which can effectively avoid pollution and ensure health and safety.
HVAC System
Electric gate valves can be used to control air circulation in HVAC systems, especially in heating and cooling systems, to help adjust temperature and flow.

※ Product Advantage
Automatic control, convenient operation
The electric gate valve can be integrated with the automatic control system through the electric actuator to achieve remote operation and automatic management, which greatly improves the convenience of operation, especially for occasions where the equipment is difficult to operate manually.
Rapid switching and sensitive response
The electric gate valve can be opened or closed quickly, which is particularly suitable for applications where fluid channels need to be opened and closed quickly, effectively improving the system response speed.
Precise control
The electric gate valve can be combined with an automatic control system (such as a PLC system, a DCS system, etc.), and the valve opening can be adjusted through precise control signals to achieve precise adjustment of parameters such as flow, pressure, and temperature. It is suitable for occasions with high requirements for fluid flow control.
High reliability and low maintenance cost
The electric gate valve has a simple structure, stable performance, can adapt to harsh working conditions, and has a long service life. Regular maintenance and inspection can ensure its long-term stable operation, reducing system downtime and maintenance costs.
Corrosion resistance and high temperature resistance
Electric gate valves are usually made of corrosion-resistant, stainless steel and other materials. They are suitable for working in a variety of corrosive media and high temperature environments, and can meet the needs of various complex working conditions.
Manual and electric dual control
Electric gate valves are generally equipped with manual operating devices, which can be operated manually in the event of power failure or other emergencies to ensure the safety of the system.

※ FAQ

What are the installation requirements for control valves?
The valve should be installed at the appropriate position of the pipeline to ensure that the flow direction is consistent with the direction indicated by the valve body; secondly, check whether the valve and its accessories are intact before installation to ensure that there is no damage; during installation, ensure that the pipeline connection is stable to avoid stress concentration and prevent damage to the valve; in addition, sufficient space should be provided for the valve to facilitate adjustment, inspection and maintenance; finally, the valve should be protected from excessive vibration or temperature, especially under high pressure and high temperature environments.

What are the common applications of temperature and pressure reducers?
Temperature and pressure reducers are widely used in many fields. They are mainly used in steam systems to reduce high-pressure steam to appropriate pressure to ensure safe operation of equipment. They are commonly used in power, fertilizer, food processing and other industries. They are also used in oil and gas pipelines, chemical production, pharmaceutical plants, etc. to ensure stable pipeline pressure and avoid system overpressure or excessive temperature. In addition, reducers are also used in HVAC, metallurgy and other industries to adjust the temperature and pressure of the fluid in the system to ensure the smooth progress of the process.

How to maintain medium and high pressure valves?
When maintaining medium and high pressure valves, first check the wear of key components such as valve body, valve seat, sealing ring and valve stem regularly. Clean the valve to prevent impurities from blocking and affecting operation. Check the operating performance of the valve to ensure flexible opening and closing without sticking. Check the sealing to prevent leakage and replace the seals if necessary. For valves that operate at high pressure for a long time, it is recommended to perform functional tests regularly to ensure their reliability under high pressure environment. In addition, check the connection parts of the valve to avoid looseness or leakage caused by vibration or corrosion.

※ Industry Applications

※ Company Introduction

Jiangsu Gaote Valve Industry Co., Ltd. was established in 2003. The company is a medium-sized enterprise specializing in the production of various petrochemical and power station valve series. The main products include high-temperature and high-pressure power station valves, gate valves, stop valves, ball valves, check valves, butterfly valves, instrument valves, needle valves, regulating valves and non-standard special valves for power stations, etc. Hundreds of varieties and specifications of valves, products are widely used in power, petrochemical, metallurgy, pharmaceutical, mining, steel, mining, water supply and drainage and other industries. The company's R&D team actively explores the field of valves and explores a path of industrial upgrading from ordinary valves to valves.

Jiangsu Gaote Valve Industry Co., Ltd. is an innovative demonstration enterprise of small and medium-sized enterprises in Jiangsu Province. It is located in the Economic Development Zone of Funing County, Jiangsu Province, and National Highway 204 passes through the territory. The company has passed the ISO9001 quality system certification and the special equipment manufacturing license of the People's Republic of China. It is a member unit of the power station accessories supply of the State Power Corporation, a member unit of the Sinopec Equipment Resources Market, and a member unit of the first-level supply network of China National Petroleum Corporation. It has gradually established a good reputation in power station valves. The company has an advanced management mechanism, with fixed assets of more than 30 million yuan, more than 100 sets of sophisticated mechanical processing equipment and inspection and testing equipment, and more than 10 technical R&D personnel, forming an integrated production, sales and service.