INDUSTRY APPLICATIONS
INDUSTRY APPLICATIONS
Selection Scheme for Large-Diameter Three-Way Diverting Butterfly Valves
1. Introduction to On-site Application Conditions
Many gas or liquid transmission systems are used in the metallurgical, chemical, and environmental protection industries. Three-way valves are often used for multi-channel pipeline media switching to ensure that the media is transmitted through a single predetermined pipeline, avoiding abnormal flow diversion or confluence. Commonly used three-way valves are mainly three-way ball valves. Due to the limitations of the ball valve structure, the general caliber is smaller. If a large-caliber three-way ball valve is used for switching, the cost will be too high, and it will be too heavy and inconvenient to use. Therefore, a valve that can be used for large-diameter pipeline three-way switching is needed.
2. Problems and Challenges Faced
1. Large diameter, linkage operation.
2. High temperatures may exist in some operating conditions.
3. Three-way same-diameter switching or different-diameter switching, special installation dimensions, or complex pipeline joints.
4. Some operating conditions have high requirements for the sealing of the switched channel.
EICMATION's Recommended Solution
1. To meet the requirements of large diameter, butterfly valves with a high cost-performance ratio are selected for cut-off, two or more butterfly valves, equipped with a connecting rod for synchronous operation;
2. To meet the requirements of high-temperature use, hard-sealed or low-load butterfly valves can be selected, and the bracket is raised for heat dissipation;
3. For different interfaces or complex multi-channel switching of pipelines, the pipe fittings matching the valve can be adjusted according to different needs, and the complete unit assembly and debugging work will be completed before leaving the factory together with the valve;
4. For different sealing requirements, valves with sealed structures such as center line, double eccentric, and triple eccentric butterfly valves can be selected, or low-load types can be selected to adapt to low-pressure ventilation pipelines.
5. The structure of our company's large-diameter three-way switching butterfly valve is shown in the figure below, including two outlet butterfly valves, three-way pipe fittings, and a connecting rod assembly. Two outlet butterfly valves can choose all-welded ventilation butterfly valves or sealed butterfly valves (center line, double eccentric or triple eccentric butterfly valves), three-way pipe fittings are all-welded structures, and two butterfly valves are connected by connecting rods, driven by one actuator. The two outlet butterfly valves have one main valve and one slave valve. The main valve is driven by an actuator, and the slave valve is driven by the main valve through a connecting rod assembly. Both valves are driven by one actuator to ensure synchronous switching.
More Industry Applications
AISENBERG GmbH
Tel: +49 02161 3046062
E-mail: info@eicmation.de
Address: Willicher Damm 129, 41066 Mönchengladbach, Germany
China Headquarters: Eic (Shanghai) Pipeline Control System Co., Ltd.
Tel: +86 021 6380 85731
Email: info@eicmation.com
Address: 16F, Changhui Building, No. 799, Yinxiang Road, Jiading District, Shanghai
China Factory: Eicmation (Jiangsu) Fluid Control System Co., Ltd.
Tel: 400-670-1280
Email: info@eicmation.com
Address: North Shengye Road, Valve Industrial Park, Nanyang Town, Dafeng District, Yancheng City, Jiangsu Province
Copyright © 2025 Eicmation (Jiangsu) Fluid Control System Co., Ltd. All Rights Reserved.