381L straight stroke

Overview of regulating valve actuator products

The 381LSA series linear electric actuator is a new type of actuator that uses an AC 220V single-phase AC power supply as the driving power source and receives control signals (DC 4-20mA or DC 1-5V) from the regulator to achieve predetermined linear motion functions. The linear electric actuator has various action transformation functions and valve position opening signals required by the regulating valve. The explosion-proof type is 381LXA type. The explosion-proof rating of the product is ExdIIBT4. The 341 type is a linear switch electronic electric actuator. It is driven by an AC 220V single-phase AC power supply, and the control signal uses positive and negative switching contact signals. The 381LXC-90 series linear electronic electric actuator is a new type of actuator that uses a 220V AC single-phase power supply as the driving power supply and receives control signals (DC4-20mA or DCI-SV) from the regulator to achieve predetermined linear reciprocating motion. When used as the actuator of a regulating valve, this series of actuators almost possess various action transformation functions required by the regulating valve itself, as well as valve opening signal function and manual function. Therefore, it is widely applied in industrial sectors such as power generation, metallurgy, petrochemicals, light industry, and environmental protection.

Characteristics of regulating valve actuator products
1. The actuator is designed with a servo system (without the need for an additional servo amplifier), which only requires the connection of a DC4-20mA (or DC1-5V) signal and an AC220V single-phase power supply to operate. Equipped with internal wiring terminals, the wiring is extremely simple and convenient.
2. The key component of the actuator - the controller, adopts a hybrid integrated circuit, sealed and cast with resin, with a box shaped appearance, small volume, and high reliability.
3. The feedback detection of the driving quantity adopts high-performance conductive plastic potentiometers with a resolution of less than 0.4%.
4. Equipped with self diagnostic function, when a fault occurs, the indicator light on the controller will immediately emit an indication signal.
5. The state selection switch can be used to set the cut-off signal when the valve core is in the fully open, fully closed, or self-locking state.
6. The state selection switch can be used to set (forward and reverse actions).
7. The state selection switch can be used to set the input signal to (DC4-20mA or DC1-5V).
8. Adjusting the work zero point (starting point) and travel (ending point) is simple and easy.
9. When there is a sudden power outage, it can ensure that the valve core is self-locking.
10. Adopting synchronous belt transmission effectively reduces noise.
11. Delay protection function, can implement state self-locking when rated load, can immediately start protection when a fault occurs, and can reverse operation to cancel delay protection.
Main technical parameters of regulating valve actuator
Power supply voltage AC220 ± 50%, 50Hz.
Power consumption specifications: A-type actuator 50VA, B-type actuator 150VA, C-type actuator 220VA
Input signal DC 4-20mA or DC 1-5V
Output signal DC 4-20mA (load resistance below 500 Ω)
Basic error of control accuracy: ± 1%, hysteresis ≤ 1%, dead zone ≤ 1%
Stroke
Adjustment range: "Zero point" ± 25%, "Travel" 20%~100%
Environmental conditions for the use of regulating valve actuators
Environmental conditions: ordinary type (S-type) actuator, explosion-proof type (X-type) actuator
Environmental temperature without space heater -10 ℃~60 ℃ -10 ℃~40 ℃
Space heater -35 ℃~60 ℃
Relative humidity below 95%, 45% to 85%
Non corrosive gas in the environment
Mechanical vibration below 1.5g
Performance parameters of regulating valve actuator products
Model rated output force N speed mm/s maximum stroke
381LSA-08 800 4.2 30
381LXA-08 800 4.2 30
381LSA-20 2000 2.1 30
381LXA-20 2000 2.1 30
381LSB-30 3000 3.5 60
381LXB-30 3000 3.5 60
381LSB-50 5000 1.7 60
381LXB-50 5000 1.7 60
381LSC-65 6500 2.8 100
381LSC-99 10000 2.0 100