Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators, positioners and more. •Piping Systems Calculate dimensions of pipes and tubes. Pressure drop calculations and head loss charts. Use of different piping materials. Insulation of pipes and tubes and...
valve. Characterizing a valve's performance factors, such as pressure drop, hydrodynamic torque, flow coefficient, loss coefficient, and torque coefficient, is necessary for fluid system designers to account for system requirements to properly operate the valve and prevent permanent damage from occurring...
In order to effectively prevent cavitation and to prevent an increase in pressure loss at a large opening angle, a butterfly valve is configured so that the butterfly valve comprises as basic constitutional members: a cylindrical valve box (1) which forms a part of a flow path; a valve rod...
Butterfly valve Traditional butterfly valves now work at high pressure drops across the disc which can be both metallic and “soft”. Upper and lower temperature limits are the same, by and large, as those for globe valves, depending on duty and material of construction. The butterfly constru...
loss over time thus reducing functionality within the valve itself causing hardening & cracking in the NBR liner along with other adverse effects over long term exposure times at higher temperatures than mentioned before here so always best practice when selecting a Butterfly Valve Lining accordingly ...
The calculation of the butterfly valve flow resistance coefficient can be divided into four situations: 1. Sudden expansion of the stream will produce maximum pressure loss. In this case, part of the flow rate of the medium is consumed in the formation of turbulence, agitation of the liquid ...
Flow Characteristics of Cryogenic Butterfly Valve for LNG Carrier (Part 2 : Flow Characteristics under Cryogenic Condition) The pressure distribution and the pressure loss coefficient of the cryogenic butterfly valve show almost similar pattern with those of the butterfly valve ... SW Kim,YD Choi,...
The characteristics of concentric butterfly valve The channel is designed as an aperture structure, which ensures the flow area of the gate valve and reduces the pressure loss of the liquid after passing through the gate valve. The plate adopts a disc-shaped streamline design, which can not onl...
The characteristics of concentric butterfly valve The channel is designed as an aperture structure, which ensures the flow area of the gate valve and reduces the pressure loss of the liquid after passing through the gate valve. The plate adopts a disc-shaped streamline design, which can not ...
In order to get good comprehensive properties of butterfly valve plate material applying to water supply system,based on the 1Cr11Ni2W2 Mo V steel,we added Cu and Sn elements respectively to got two kinds of new materials. The mechanical properties,corrosion resistance and processing performance...