Products

Product Overview:

Globe Control Valves use linear motion to move the shutoff member in and out of the seat surface. Their bodies feature a spherical cavity around the port area and are designed to regulate process flow when used in conjunction with an actuator assembly. Many single-seat bodies use a cage, three-way or fixed construction to hold the seat ring in place, provide spool guidance, and provide a means of establishing specific valve flow characteristics. Caged or fixed single-seat bodies can also be easily modified by replacing the internals to change the flow characteristics or to provide reduced capacity flow, noise attenuation, or to reduce or eliminate cavitation.

Single-seat control valve is a top-guided, plunger-type single-seat control valve. It was certified by TÜV ISO15848 in 2019. It has the characteristics of high control accuracy, good sealing performance, simple structure and high versatility. Suitable for fluid control in globe control valve working conditions requiring high control accuracy. Bellows seal type can be used. Thousands of applications in the fine chemical, petrochemical, pharmaceutical and other industries.

Performance advantages

Modular design concept, combining the American and Japanese schools of high-precision control and the German school of modular concept. The inner cavity of the valve body is S-shaped distribution, smooth and without dead corners; the valve body has internal flow guide wings, which can reduce the mutual force of the medium inside the valve body and reduce the occurrence of cavitation. Simple structure, less dead space in the internal globe control valve parts, reducing the possibility of crystallization and blockage of the medium. The valve spool adopts upper guidance, which is smoothly guided. The valve seat adopts floating design, while the sealing surface adopts tapered form to ensure good alignment of the sealing vice. Spool type face control flow characteristics, accurate flow characteristics control. Equivalent percentage, linear and fast-opening flow characteristics are available. Temperature range of application span, -196 ~ 593℃ are available in the appropriate structure. Leakage grade meets GB/T 17213.4-2005 / IEC 60534-4:1999, hard seal up to grade IV, V, fast-opening and soft seal up to grade VI; and pipeline connection with RF, RJ, FM and other flange types and SW, BW welding type. The flange distance conforms to GB/T 17213.3-2005/IEC 60534-3-1:2000; or ISA S75.03-1992 standard. 

Technical globe control valve dimensions

Application

Globe Control Valves are available in a variety of sizes (NPS 1/2 to 36) to provide users with high performance and reliability. They can help address a range of application needs from large to small, hot to cold, and average to severe. Bonnets are available in different styles to accommodate different application temperatures. This primarily includes standard bonnets and optional extended bonnets that can be used to protect the packing material when the valve is used in extremely hot or cold applications. Special packing configurations are also available for applications that require a packing system to keep the concentration of unorganized emissions below ambient standards. Some of the most typical applications for globe valves include cooling water systems, fuel oil systems, feedwater or chemical feedwater systems, boiler and main steam vents and drains, and turbine lube systems.