How does the Q911F electric threaded ball valve achieve stable control under high load?

The core advantage of the Q911F electric threaded ball valve lies in its design of adjustable output torque from 8W to 2000N·M. This parameter range covers the diameter requirements of DN10 to DN100. Specifically:
Small-diameter valves (DN10-DN50): use low-power motors (8W-50W) and achieve high torque output through a reduction mechanism, which is suitable for fine flow control scenarios, such as the delivery of trace additives in the food and pharmaceutical industries.
Large-diameter valves (DN65-DN100): equipped with high-power motors (200W-2000N·M), directly drive the valve body, and meet the large-flow medium control requirements of the petroleum, chemical and other industries.
The 15-60 second action time design takes into account both response speed and system stability. For example, in sewage treatment systems, valves need to be opened and closed frequently to adjust sludge flow. Q911F optimizes the motor speed and reduction ratio to achieve fast response while avoiding mechanical shock and extending valve life.

When traditional electric valves are shut down in an emergency, inertia often causes the valve stem to oscillate or the sealing surface to wear. Q911F achieves instantaneous shutdown without oscillation through the triple coordination of overheat protection device, electronic braking circuit and mechanical damping device:
Overheat protection: The built-in temperature sensor monitors the motor temperature in real time, and automatically cuts off the power supply when the temperature exceeds the set threshold to prevent the motor from burning.
Electronic braking: Through PWM (pulse width modulation) technology, reverse current is applied at the moment of shutdown to quickly consume the motor kinetic energy.
Mechanical damping: A hydraulic damper or spring buffer device is used to absorb the remaining kinetic energy to prevent the valve stem from impacting the valve body.
This design is particularly important in high-temperature and high-pressure scenarios such as steam pipelines. For example, when the steam pressure drops sharply, the valve needs to be closed urgently to prevent the medium from flowing back. The instantaneous braking function of Q911F ensures that the valve is completely closed within 0.3 seconds without oscillation, avoiding damage to the sealing surface.
The positioning accuracy of Q911F reaches ±0.3%, which is far higher than the ±1%-±2% of traditional electric valves. Its technical implementation paths include:
High-precision encoder: multi-turn absolute encoder is used to feedback the valve stem position in real time and eliminate cumulative errors.
Closed-loop control system: combined with PID algorithm, the motor speed is dynamically adjusted according to the position deviation to ensure that the valve opening is consistent with the set value.
Mechanical compensation: a flexible sealing structure is used between the valve stem and the valve seat, which allows automatic compensation when there is a small deviation to avoid jamming.
In the hydraulic pulper control of the papermaking industry, the precise positioning capability of Q911F can ensure the stability of slurry flow and improve paper quality; in the syrup transportation of the food industry, the syrup concentration can be accurately controlled to avoid waste.

The design of Q911F enables it to adapt to a variety of industrial scenarios:
Chemical industry: In corrosive media such as nitric acid and acetic acid, its stainless steel valve body and polytetrafluoroethylene sealing structure can operate stably for a long time.
Environmental protection industry: In the aeration tank adjustment of sewage treatment plants, its fast response and positioning accuracy can optimize aeration efficiency.
In the power industry: In the boiler feed water system, its large load torque and instantaneous braking function can ensure stable steam pressure.