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Gate valves are theoretically suitable for steam piping and can effectively block the flow of steam. However, high temperature and high pressure environments require extremely high sealing performance, and the risk of leakage due to thermal expansion and contraction can lead to energy waste or safety accidents. Safe and stable operation of gate valves can be ensured through proper selection (e.g., use of cast steel), precise installation, and regular maintenance (inspection and replacement of seals). To summarize, gate valves can be used in steam pipelines, but they require comprehensive consideration of operating conditions, performance and maintenance to achieve a reliable function.

With its compact structure, convenient operation and excellent sealing performance, the butt-clamp butterfly valve is widely used in the piping system of oil/gas, chemical industry, water treatment, thermal power station and sulfuric acid acid production and other industries. It is suitable for space-restricted occasions, can effectively control the fluid (opening and closing, regulating, intercepting), withstand high pressure and temperature, and corrosion-resistant, and is a key component to ensure the stable operation of industrial processes.

Globe valves provide high-precision flow regulation and excellent sealing, and are suitable for precise control applications (e.g., chemical production); butterfly valves, with their simple structure and low resistance, are more suitable for high-flow systems (e.g., water supply and drainage). The choice should be based on specific application requirements.

Although flange ball valves can theoretically be installed in both directions, the actual installation direction needs to be carefully determined according to the fluid characteristics (such as pressure fluctuations, impurities) and specific process requirements to ensure valve performance, sealing effect and safe and stable operation of piping systems.

Flanged ball valves are the core equipment for fluid control, with the advantages of fast switching, excellent sealing and low fluid resistance, they are suitable for chemical, petroleum and other high-flow systems, and can accurately regulate the flow rate and pressure to ensure the efficient operation of industrial pipelines.

The core difference between cast steel gate valve and cast iron gate valve lies in the material characteristics and pressure capacity. Cast steel gate valve with high strength, corrosion resistance, petrochemical, natural gas and other high-pressure (> 1.6MPa), high temperature or corrosive media pipeline of choice. Cast iron gate valve is simple structure, low cost, widely used in water supply and drainage, municipal engineering and other low pressure (≤ 1.6MPa) system. Selection needs to be based on the working pressure, temperature and media characteristics, to ensure the safe and stable operation of the pipeline.

Hard seal butterfly valves are widely used in all kinds of harsh industrial environments due to their excellent adaptability. It can reliably cope with extreme temperatures (from hundreds of degrees Celsius for high-temperature steam to low temperatures in cold regions), adapt to a variety of pressure levels (from medium and low pressure for water supply and drainage to high pressure for chemical processes), and be compatible with a variety of media (including gases, liquids, weakly corrosive solutions and materials containing solid particles), ensuring the sealing safety of piping systems and stable operation under various working conditions.

With the advantages of simple structure, compact size and low cost, the centerline butterfly valve has become a key valve in air-conditioned water pump rooms. It efficiently controls water flow (opening/closing/regulating) by rotating the butterfly plate and provides reliable sealing in low-pressure water systems, meeting the space and functional requirements of the pump room and guaranteeing stable system operation.

Ball valves can be used in sludge pipelines, but they need to be selected according to specific working conditions. Ball valves have the advantages of compact structure, easy operation, good sealing and easy maintenance, especially motorized V-ball valves, which are very effective in sludge flow control (e.g. precise addition of chemicals). When selecting, it is important to consider the temperature, pressure, corrosiveness and solid particle content of the sludge medium, and choose the appropriate material and structure (such as hard/soft seal, pneumatic/electrical) to ensure a smooth process, easy maintenance and improve production efficiency.

Check valves are key components to prevent backflow of fluids and ensure stable operation of industrial and civil fluid systems. The main types include swing-open (single, double, multi-valve) and lift-open (vertical, horizontal), which are suitable for different pipe sizes and flow rate scenarios. Materials such as cast iron, cast steel and stainless steel offer a wide range of options to meet corrosion, pressure and temperature requirements.

This article provides expert advice on selecting gate valves for circulating water systems. Wedge single gate valves are suitable for conventional industrial systems, good sealing but need clean water; resilient gate valves are suitable for large systems, strong sealing and adaptable to changes in pressure and temperature; and concealed stem gate valves are suitable for small building systems, compact and easy to operate. Selection needs to be comprehensive system size, water quality, pressure and temperature and other factors to ensure efficient and stable operation.

Gate valves and ball valves have their own advantages, the selection depends on the specific needs. Gate valve flow resistance is small, simple maintenance, suitable for large diameter, low resistance pipeline; ball valve compact structure, good sealing, fast switching, more adaptable to space constraints, high sealing and the need for rapid opening and closing of the scene. According to the working conditions, media and installation conditions is the key to a comprehensive choice.