Company News /

VA20 and VG20 Work Sections  VG20 High Flow Sectional Valve  DIRECTIONAL CONTROL VALVES

Control valves are critical components in various industrial processes, used to regulate fluid flow, pressure, temperature, and level. Their features depend on the specific application, but here are some common features and characteristics of control valves:VG20 Work Sections valve

1. Valve Types

  • Globe Valves: Ideal for precise flow control, commonly used in throttling applications.
  • Ball Valves: Provide quick shut-off and are suitable for on/off control.
  • Butterfly Valves: Compact and lightweight, used for large flow rates.
  • Diaphragm Valves: Suitable for corrosive or slurry applications.
  • Plug Valves: Used for on/off control and throttling in low-pressure systems.

2. Flow Characteristics

  • Linear Flow: Equal percentage of valve opening results in equal flow change.
  • Equal Percentage Flow: Exponential relationship between valve opening and flow.
  • Quick Opening Flow: Rapid flow increase at the beginning of valve opening.

3. Materials

  • Body Materials: Stainless steel, carbon steel, brass, or plastic, depending on the fluid and environment.
  • Seat and Seal Materials: PTFE, EPDM, or metal for durability and compatibility with the fluid.

4. Pressure and Temperature Ratings

  • Available in various sizes (e.g., 1/2 inch to 24 inches) and connection types (flanged, threaded, welded).

5. Additional Features

  • Noise Reduction: Designed to minimize noise in high-pressure applications.
  • Cavitation and Flashing Control: Special designs to handle cavitation and flashing issues.
  • Fire-Safe Design: Valves that maintain integrity in fire conditions.
Scroll to Top