Three-wire two-control electric ball valves have the advantages of simple structure, easy operation and high reliability. Can be used in industrial fields, such as petrochemical industry in the pipeline transportation system, to meet the requirements of its high pressure, high temperature, corrosion and other special working conditions. In addition, the power industry in the boiler control system, metallurgical industry in the high-temperature melting system, etc. Can also be used in the field of life, for example, water supply and drainage systems, air conditioning systems, residential communities, commercial buildings and other places in the air conditioning system and heating system.
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It does not require external energy drive, relying on the adjusted medium's own pressure changes and automatic adjustment. 1、Constant differential pressure of the controlled system; 2、Support the internal self-regulation of the controlled system; 3、Absorb differential pressure fluctuations in the external network; 4、 the use of advanced stepless pressure regulation structure, control differential pressure adjustable ratio of up to 25:1; 5、 with automatic elimination of clogging function.
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A21H is applicable to the equipment or pipeline of water, air, steam and other media with working temperature ≤200℃; A27Y is applicable to the equipment or pipeline of corrosive media with working temperature ≤200℃ as an overpressure protection device; A28H(Y) is applicable to the equipment or pipeline of air, steam, water, nitrogen-hydrogen mixture and other media with working temperature ≤200℃; A28Y-P/R is suitable for equipment or pipeline with working temperature ≤200℃ and corrosive medium as overpressure protection device.
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How to use the manual and automatic brass ball valves? 1. Normally closed models energized to open, power failure to close. 2. Operation time is generally 6-15 seconds. What if there is a sudden power failure? 1. Switch the automatic mode button to manual mode. 2. Manually operate the switch. What are the advantages of manual automatic integrated brass ball valve? 1. Strong corrosion resistance: suitable for piping systems with corrosive media. 2. Good thermal conductivity: for systems that require a rapid response to temperature changes. 3. High temperature resistance: copper ball valve is suitable for relatively high temperature working environment. 4. Good sealing performance: The one-piece design reduces the risk of leakage and improves sealing performance. 5. Ease of operation: Copper ball valves can be operated manually or automatically, making it easy for users to control them as needed.
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