Professional guide for engineering practitioners on selecting manual and electric butterfly valves, core fluid control components.
Manual butterfly valves: Streamlined, handwheel-operated (90กใ on-off), no external power. Suitable for low-frequency, small-diameter pipelines (PN10-PN40, DN50-DN1200) like civil water supply and small industrial auxiliary lines; low cost, simple maintenance.
Electric butterfly valves: Equipped with electric actuator for remote control and stepless adjustment (PN10-PN100, DN50-DN2000), with overload protection.?/p>
Applicable to high-automation, high-frequency scenarios (petrochemical, power, environmental protection, HVAC); higher initial cost, long-term labor-saving.
Selection: Manual for on-site, low-cost, low-frequency use; electric for large-diameter, high-precision, automated or unattended conditions.?/p>
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