What are the application scenarios for valve body products?

Category: Industry News

Release time: 2025-12-26

Overview: As the core component for fluid control, valve bodies are used in a wide range of applications spanning multiple industries, including energy, chemical processing, municipal utilities, and metallurgy.

As the core component for fluid control, valve bodies are used in a wide range of applications spanning multiple industries, including energy, chemical processing, municipal utilities, and metallurgy. The following provides a categorized overview by industry and valve type:

Core Application Areas and Typical Scenarios

Industry sector Core scenario Common Valve Body Types Key requirements
Oil and gas Wellhead high-pressure control, LNG storage and transportation, and long-distance pipeline isolation High-pressure ball valves, forged steel gate valves, low-temperature valves High-pressure resistance (10–138 MPa), resistance to hydrogen sulfide corrosion, and low-temperature toughness
Chemical industry Reactor feed and discharge, transportation of corrosive media, and precise flow control Diaphragm valve, stainless steel globe valve, fluoropolymer-lined ball valve Leak-proof, acid- and alkali-resistant, sterile / high purity (pharmaceutical and chemical industries)
Electricity (thermal power / nuclear power) Boiler steam system, turbine control, cooling circulation High-temperature gate valves, power plant shut-off valves, nuclear-grade butterfly valves High-temperature resistance (593℃), fatigue resistance, seismic resistance, low leakage
Municipal environmental protection Tap water supply, wastewater treatment, and heating pipeline networks Ductile iron gate valves, large-diameter butterfly valves, knife gate valves Large diameter (DN300+), low maintenance, and anti-clogging
Metallurgy Blast furnace air supply, slurry transportation, waste heat recovery High-temperature butterfly valve, wear-resistant gate valve, hydraulic servo valve Dust-resistant, wear-resistant, fast response
General Industry Injection molding machine hydraulic circuits, building material batching, food and beverage filling Hydraulic valves, proportional control valves, sanitary-grade ball valves High-precision control, food-grade materials (FDA/3A)

 

Segmentation by valve body type

1. Ball valve: 90° quick opening and closing, suitable for fully open / fully closed positions, used for natural gas pipelines, refined oil transportation, and water treatment shut-off applications.

2. Globe valve: Offers high adjustment accuracy and is suitable for steam systems, chemical reagent metering, and instrument piping (DN ≤ 50 mm).

3. Butterfly valve: Compact in structure, suitable for large-diameter pipelines (DN≥200), and used in water supply and drainage main lines, cooling tower circulating water systems, and ventilation systems.

4. Diaphragm valve: No risk of external leakage; suitable for strong acids, strong bases, toxic media, and sterile pharmaceutical pipelines.

5. Safety valve / Pressure relief valve: Overpressure protection device used for boilers, pressure vessels, and liquefied gas storage tanks.

 

Additional notes

  • Material selection directly affects scene adaptation: cast iron is used for low-pressure water systems, carbon steel for medium-temperature and medium-pressure steam, stainless steel/Hastelloy for corrosive media, and low-temperature steel for cryogenic applications such as LNG.
  • The actuation method (manual, pneumatic, electric, or hydraulic) must be matched to the automation requirements. For example, electric control valves are commonly used in chemical DCS systems, while hydraulic butterfly valves are employed in metallurgical blast furnaces to achieve rapid control.

Keywords: What are the application scenarios for valve body products?