Globe Valve Xt at William Emery blog

Globe Valve Xt. The valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. Learn how fluid properties, valve geometry, and pressure drop affect cavitation and flashing in control valves. Choked flow is the point where increasing p does not increase flow rate, and it depends on the fl or xt value for liquids and gases respectively. Learn how to use the valve style modifier (xt) and the pressure recovery factor (fl) in a valve cavitation chart to prevent or reduce valve damage and improve flow control. In order to properly size control valves for gas service, it is necessary to know at what pressure drop flow will choke. The use of globe design of valve for valve size more than 12” is not economical. The x t factor (critical pressure drop) describes how close the compressible flow is from choking (its velocity reaching sonic velocity), which occurs when p 1 /p vc exceeds 2.0. The choked flow also depends on piping geometry and the thermodynamic properties of the fluid. Kv =0.865 cv or cv = 1.156 kv. It is preferred to have butterfly valve size of 4” as a minimum.

Globe Valve detailed view
from www.wermac.org

The choked flow also depends on piping geometry and the thermodynamic properties of the fluid. In order to properly size control valves for gas service, it is necessary to know at what pressure drop flow will choke. Learn how fluid properties, valve geometry, and pressure drop affect cavitation and flashing in control valves. Choked flow is the point where increasing p does not increase flow rate, and it depends on the fl or xt value for liquids and gases respectively. The valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. Kv =0.865 cv or cv = 1.156 kv. It is preferred to have butterfly valve size of 4” as a minimum. The use of globe design of valve for valve size more than 12” is not economical. The x t factor (critical pressure drop) describes how close the compressible flow is from choking (its velocity reaching sonic velocity), which occurs when p 1 /p vc exceeds 2.0. Learn how to use the valve style modifier (xt) and the pressure recovery factor (fl) in a valve cavitation chart to prevent or reduce valve damage and improve flow control.

Globe Valve detailed view

Globe Valve Xt The valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. In order to properly size control valves for gas service, it is necessary to know at what pressure drop flow will choke. The choked flow also depends on piping geometry and the thermodynamic properties of the fluid. Learn how to use the valve style modifier (xt) and the pressure recovery factor (fl) in a valve cavitation chart to prevent or reduce valve damage and improve flow control. The use of globe design of valve for valve size more than 12” is not economical. Kv =0.865 cv or cv = 1.156 kv. Learn how fluid properties, valve geometry, and pressure drop affect cavitation and flashing in control valves. Choked flow is the point where increasing p does not increase flow rate, and it depends on the fl or xt value for liquids and gases respectively. The valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. The x t factor (critical pressure drop) describes how close the compressible flow is from choking (its velocity reaching sonic velocity), which occurs when p 1 /p vc exceeds 2.0. It is preferred to have butterfly valve size of 4” as a minimum.

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