How To Choose The Right Liquid Cooling Butterfly Valve In Pipeline Design?

In fluid piping systems, cooling Butterfly Valve are control elements whose primary functions are to isolate equipment and piping systems, regulate flow, prevent backflow, and regulate and relieve pressure. Because selecting the cooling water Butterfly Valve for a piping system is crucial, understanding Butterfly Valve cooling characteristics and the steps and criteria for selecting a water cooling Butterfly Valve is crucial.
1. cooling Butterfly Valve Characteristics

Use characteristics determine the water cooling Butterfly Valve's primary performance and scope of use. These include: cooling water Butterfly Valve type (closed-circuit valve, regulating valve, safety valve, etc.); product type (gate valve, globe valve, butterfly valve, ball valve, etc.); materials used for the Butterfly Valve cooling system's main components (body, bonnet, stem, disc, sealing surface); and water cooling Butterfly Valve transmission method. Structural characteristics determine certain structural characteristics of the Butterfly Valve cooling that facilitate installation, repair, and maintenance. These include: cooling Butterfly Valve length and overall height; connection type to the pipeline (flange, threaded, clamp, external thread, welded end, etc.); sealing surface type (ring insert, threaded ring, overlay weld, spray weld, body); and stem structure (rotating stem, lifting stem). II. cooling water Butterfly Valve Selection Steps
① Identify the Butterfly Valve data center's purpose in the equipment or device and determine the valve's operating conditions: applicable media, operating pressure, operating temperature, etc.
② Determine the nominal diameter of the pipe connecting to the valve and the connection method: flange, threaded, welded, etc.
③ Determine the valve operation method: manual, electric, solenoid, pneumatic or hydraulic, electrical linkage, or electro-hydraulic linkage, etc.
④ Based on the pipeline's transport media, operating pressure, and operating temperature, determine the material of the selected valve's housing and internals: gray cast iron, malleable cast iron, ductile iron, carbon steel, alloy steel, stainless and acid-resistant steel, copper alloy, etc.
⑤ Select the valve type: closed-circuit valve, regulating valve, safety valve, etc.
⑥ Determine the valve type: gate valve, globe valve, ball valve, butterfly valve, throttle valve, safety valve, pressure reducing valve, steam trap, etc.
⑦ Determine the valve parameters: For automatic valves, first determine the allowable flow resistance, discharge capacity, back pressure, etc., based on specific needs, and then determine the nominal diameter of the pipe and the diameter of the valve seat hole. ⑧ Determine the geometric parameters of the selected valve: structural length, flange connection type and size, valve height dimensions when opened and closed, connection bolt hole size and number, overall valve dimensions, etc.
⑨ Utilize existing information: valve product catalogs, valve product samples, etc. to select the appropriate valve product.
III. Valve Selection Basis
① Application, operating conditions, and control method of the selected valve.
② Properties of the working medium: operating pressure, operating temperature, corrosive properties, presence of solid particles, toxicity, flammability, explosiveness, and viscosity.
③ Requirements for valve fluid properties: flow resistance, discharge capacity, flow characteristics, sealing rating, etc.
④ Installation and external dimension requirements: nominal diameter, connection method and dimensions to the pipeline, external dimensions or weight restrictions, etc.
⑤ Additional requirements for valve reliability, service life, and performance of the electric actuator. Based on the above criteria and steps for valve selection, a detailed understanding of the internal structure of various valve types is essential for a reasonable and accurate valve selection process. This allows for a correct decision on the preferred valve. The ultimate control in a pipeline is the valve. The valve's opening and closing mechanism controls the flow pattern of the medium within the pipeline. The shape of the valve's flow path determines the valve's flow characteristics, which must be considered when selecting a valve suitable for installation in a pipeline system.

IV. Principles to Follow in Valve Selection

Valves used to block and open media have straight-through flow paths, which offer low flow resistance and are generally chosen for these applications. Downward-closing valves (globe valves, plunger valves) have higher flow resistance than other valves due to their tortuous flow paths and are therefore less commonly used. Where higher flow resistance is acceptable, closed-type valves can be used.

Valves used to control flow are generally chosen for their ease of flow adjustment. Downward-closing valves (such as globe valves) are suitable for this purpose because their seat size is proportional to the travel of the closing element. Rotary valves (plug valves, butterfly valves, ball valves) and flexible-body valves (clamp valves, diaphragm valves) can also be used for throttling control, but are generally only suitable within a limited range of valve diameters. Gate valves use a disc-shaped gate to move transversely across a circular seat. They can only effectively control flow when nearing the closed position, so they are not typically used for flow control.

Valves used for directional diversion can have three or more channels, depending on the desired diversion. Plug valves and ball valves are best suited for this purpose, and therefore, most valves used for directional diversion are of this type. However, in some cases, other valve types can also be used for directional diversion by properly interconnecting two or more valves.

Valves for media containing suspended particles: When the media contains suspended particles, valves with a wiping effect on the closing element as it slides along the sealing surface are most suitable. If the closing element's reciprocating motion relative to the valve seat is vertical, particles can be trapped. Therefore, these valves are only suitable for relatively clean media unless the sealing surface material can tolerate particle embedment. Ball valves and plug valves both wipe the sealing surface during opening and closing, making them suitable for media containing suspended particles. Whether in the petroleum, chemical, or other industries, valve applications, operating frequencies, and service levels are constantly evolving. To control or eliminate even the smallest leaks, valves are the most important and critical equipment. The ultimate control of pipelines is the valve, and its service and reliability in various fields are unparalleled.