Description
Overview
Wafer Stainless Steel Lug Butterfly Valve With more than ten years of mature thermal control engineering experience in the power industry, Freya has made a lot of targeted improvements based on the actual application of similar products, and successfully launched a new generation of intelligent integrated electric actuators, which integrates bus control technology, absolute encoder technology, infrared remote control technology, LCD display, magnetic switch control, cover-free and other latest automatic control technologies. FRY series intelligent electric actuators are guaranteed by internationally advanced and mature technology, first-class processing equipment and a complete service system. It has been proven by the use of the majority of users: advanced and powerful functions, stable and reliable performance, safe and convenient use, fully reaching the international advanced level, and are ideal substitutes for imported electric actuators. Products are widely used in power, petroleum, papermaking, chemical industry, steel, cement, water treatment and other fields.
Performance characteristics
The sturdy handwheel provides reliable emergency manual operation in the event of a power failure.
The high-quality aluminum alloy housing is exquisite and lightweight, coated with a layer of protective material to adapt to extremely harsh environments, and other types of coatings can be applied as needed.
The manual/electric conversion handle can be safely operated at any time. While pressing the handle with appropriate force, slowly turn the handwheel to engage the internal clutch. The clutch will automatically disengage when the motor is powered and in the electric lock state.
The professionally designed useful work measurement system is used as the output torque measurement system. The system is developed from the familiar electrical energy measurement technology to obtain accurate and repeatable torque measurements, and is independent of frequency, voltage and temperature changes.
The control panel display LCD can provide instantaneous and latest status and valve position, with Chinese and English languages available, and an intuitive menu structure that provides calibration and diagnostic information, including torque curves, operation and fault records, motor status, local information and hardware data.
Field control "open"/"close" knobs and padlocked "local"/"stop"/"remote" mode knobs all use isolated magnetic transfer Hall effect devices, no through-shaft, good sealing performance, and eliminate the troubles that may be caused by faulty and fragile reed switches.
Absolute coding technology
■ The absolute encoder used in the electric actuator can operate continuously and is 100% repeatable. It can provide accurate position signals to the processor even without power or battery power.
■ Single-turn uses 12-bit counting with an accuracy of 0.08
■ Multi-turn uses 6-level gear counting, which can reach 4096 turns (the count value is unique in the 4096 rotations of the drive sleeve)
■ The redundant circuit of the encoder can ensure normal operation even if 50% of the components fail
Electronic torque detection
■ The cut-off torque can be set bidirectionally (forward/reverse) independently in steps of 1%.
■ The electronic torque detection device includes an effective power detection circuit, a motor angular velocity detection circuit, a control circuit and a CPU microprocessor. During operation, the microprocessor continuously detects the effective power and angular velocity of the motor and calculates the actual torque and compares it with the preset cut-off torque. Once it exceeds the limit, the CPU immediately cuts off the motor power supply and outputs a fault alarm message to achieve over-torque protection. The actuator motor will not burn out due to stalling, and the valve will not be damaged due to over-torque of the actuator.
■ Non-contact torque detection, no mechanical torque switch is required, no mechanical wear, and long service life.
■ The output torque can be simply and quickly set using an infrared setter without opening the cover.
■ It is not affected by factors such as temperature and voltage fluctuations, has high accuracy, and can fully meet the reliable protection of on-site valves.
