Description
Technical Specifications
SPECS Labyrinth Control Valves are the most effective and reliable Control Valve under high pressure drop severe service. The specially designed flow path forces fluid through a tortuous path of right-angle turns, constantly changes its directions and impacts on the path, to control the pressure and kinetic energy letdown and limit the fluid velocity effectively. This kind of valve may effectively prevent cavitation for uncompressed fluid and may effectively reduce the noise of compressed fluid. Labyrinth valve may effectively prevent flushing and vibration of the valve trim.
Applicable Standard
Design & Manufacture Standard: IEC 60534-2006
Face to Face:ANSI/ ISA-75.08.06-2002
End Connection: ASME B16.5, EN1092-1, GOST33259, ASME B16.25
Test Standard: IEC60534-4
Products Range
Size: 1 1/2"~24"
Pressure Rating: ASME CLASS 150~2500
Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel
End: Flanged (RF, RTJ), Butt Weld, Socket Weld.
Temperature Range: -196℃~550℃
Seat Leakage: ANSI Ⅳ(0.01%) or Ⅵ(bubble-tight)
Bonnet Type: Standard, Fin-Extension, Long-Extension
Design Features
1. Labyrinth velocity control valve is an extended application of regular cage control valve, and it is designed based on a series of multi-stage pressure reducing principle.
2. The pressure difference of high pressure flow are reduced step by step after several expansion when the flow go through the plug and cage holes due to a number of multilevel window hole in certain shape on the cage. This achieves a whole control of the flow velocity, so the noise generated by the high-pressure gas or steam can be greatly reduced.
3. This valve can prevent fluid cavitation effectively as well as reducing noise. It is a type of high performance control valve with no cavitation damage, low noise, good control of fluid stability.
Benefits
1. Cavitation, flash, vibration and noise are all caused by high flow velocity. Labyrinth velocity control valve has a good control of flow velocity and pressure so it can achieve anti-cavitation, anti-flash, low vibration and low noise.
2. This series can satisfy most high pressure difference control occasions by selecting the 1~24 step according to the actual situation.
GA Of Labyrinth Control Valve
Body part selection map
