Yangzhou, China-Electric Valve Co., valve actuators for motor YDF-WF-212-4, YDF-WF-221-4, YDF-WF-222-4, YDF-WF-231-4, YDF-WF-311 -4, YDF-WF-312-4, YDF-WF-322-4, YDF-WF-411-4, YDF-WF-412-4, YDF-WF-422-4, YDF-212-4, YDF -221-4, YDF-222-4, YDF-231-4, YDF-311-4, YDF-312-4, YDF-322-4, YDF-411-4, YDF-412-4, YDF-422 -4 and other models. ① special valve valve motor torque motor performance in line with the torque characteristics of the valve opening and closing. Usually the valve is opened and closed within a short time the torque required to place a high value, while the torque value required to open or close only 1/3 the maximum torque value in the intermediate operating state, so that the characteristics of the valve for motor starting torque high overload capacity. The maximum torque of the motor and valve-specific than the rated torque value is greater than 3 times the starting torque than the rated torque value is also greater than 3 times. ② valve designed for motor rotor slender shape. Thus the high-speed rotation of the motor to the valve when the valve is closed sealing additional inertial load is small, can guarantee reliable valve sealing surface, and not leave the valve sealing surface damage. ③ As the valve operation is intermittent short-time working system, and thus the valve motor for working time according to national standards for 10min, and some foreign products time 15min. ④ outlet valve motor for end face, no junction box, no fan, self-cooled, high protection performance. General standard ip55, ip65, ip68 reached the highest level for the submersible type motor. YBDF series motor proof mark Exd ⅡBT4, applicable to factories Ⅱ class A grade, B grade electrical equipment, temperature class T1, T2, T3, T4 group explosive gas mixtures in the environment. According to the order requirements, but also for users to produce proof mark Exd motor. Motor number (explosion proof) No. Model motor power current noise NW 1 YBDF 322-4 3 KW 10 A 75 dB (A) 34 kg2 YBDF 321-4 2.2 KW 6.5 A 75 dB (A) 29 kg3 YBDF 312-4 1.5 KW 4.5 A 75 dB (A) 29 kg4 YBDF 311-4 1.1 KW 3.4 A 75 dB (A) 20 kg5 YBDF 223-4 0.75 KW 2.8 A 70 dB (A) 13 kg 6 YBDF 222-4 0.55 KW 2.2 A 70 dB (A) 11 kg 7 YBDF 221-4 0.37 KW 1.8 A 70 dB (A) 10 kg8 YBDF 212-4 0.25 KW 1.5 A 70 dB (A) 9 kg 9 YBDF Q1-211-4 0.18 KW 0.95 A 70 dB ( A) 8 kg10 YBDF Q1-112-4 0.12 KW 1.2 A 70 dB (A) 8 kg11 YBDF Q1-111-4 0.09 KW A 70 dB (A) kg