Imported electric ball valve
Overview of imported electric ball valve products:
Imported electric ball valves (electric flanged ball valves, stainless steel electric ball valves, electric explosion-proof ball valves, hard-sealed electric ball valves) provided by YLOK International Valve Company are mainly composed of ball valves and valve electric devices.
Electric actuator (electric actuator) A device that uses electricity to drive opening and closing or adjusting valves. The valve electric device is an indispensable drive device for the realization of valve program control, automatic control and remote control. Its movement process can be controlled by the stroke, torque or axial thrust. Because the working characteristics and utilization of the valve electric device depend on the type of valve, the working specification of the device and the position of the valve on the pipeline or equipment. The electric device generally consists of the following parts: 1. A special motor, which is characterized by strong overload capacity, large starting torque, small moment of inertia, short-time and intermittent work 2. Speed reduction mechanism to reduce the output speed of the motor 3. Stroke control mechanism , Used to adjust and accurately control the opening and closing position of the valve. 4. Torque limit mechanism, used to adjust the torque (or thrust) and make it not exceed the predetermined value. 5. Manual and electric switching mechanism, for manual or electric operation. Locking mechanism 6. Opening indicator, used to show the position of the valve during the opening and closing process
Imported electric ball valve classification
Divided into electric flange ball valve, electric wafer ball valve, electric welding ball valve, electric threaded ball valve. According to the sealing form, it is also divided into soft sealing electric ball valve and hard sealing electric ball valve. There are also electric wafer ball valves, electric PVC ball valves, electric chip ball valves, electric fixed ball valves, electric floating ball valves, electric V-shaped ball valves, electric O-shaped ball valves, electric three-way ball valves, electric explosion-proof ball valves, electric eccentric ball valves, etc.
Technical parameters of imported electric ball valve:
Nominal pressure: PN16-PN32
Nominal diameter: DN15—DN600
Maximum rotation angle (α°): 90°
Working temperature: -40~550℃
Transmission mechanism: electric
Input signal: electrical signal: 4~20mADC, contact signal: 1kΩ 1~5VDC
Valve seat form: (hard seal seat) 304, 316, (soft seal seat) polytetrafluoroethylene
Main material: valve body (1) WCB (2) 304 (3) 316 (4) 316L
Spool: 304, 316, 316L
Applicable media: pulping, suspended particles, dust, air, steam, water, gas, petroleum and petrochemical products, corrosive, acid-base media.
Main features of imported electric ball valve:
1. The thrust bearing reduces the friction moment of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time.
2. Anti-static function: a spring is set between the ball, valve stem and valve body, which can lead out the static electricity generated during the switching process.
3. Since materials such as polytetrafluoroethylene have good self-lubricating properties, the friction loss with the ball is small, so the service life of the ball valve is long.
4. The bottom-mounted valve stem and the convex step of the valve stem head prevent the valve stem from ejecting. If the valve stem seal is damaged due to fire, the convex step and the valve body can also form metal contact to ensure the valve stem seal.
5. The fluid resistance is small. The ball valve is the smallest fluid resistance of all valves. Even the reduced diameter ball valve has a relatively small fluid resistance.
6. The valve seat has good sealing performance. The sealing ring made of PTFE and other elastic materials is easy to seal, and the sealing capacity of the ball valve increases with the increase of medium pressure.
7. The valve stem is reliable in sealing. Because the valve stem is only used for imitating rotation and not lifting, the packing seal of the valve stem is not easy to be damaged, and the sealing ability increases with the increase of the pressure of the medium.
Installation method of imported electric ball valve
1. Any section of the ball valve can be installed at the upstream end, and the handle ball valve can be installed at any position of the pipeline. If the ball valve of the actuator (such as gear box, electro-pneumatic actuator) is configured, it must be installed vertically, at the inlet and outlet of the valve. In a horizontal position.
2. Install a gasket between the ball valve flange and the pipeline flange according to the pipeline design requirements.
3. The bolts on the flange should be tightened symmetrically, successively and evenly.
4. If the ball valve adopts pneumatic or electric actuators, complete the installation of air source and power supply according to the instructions.
Precautions for imported electric ball valve
1. The ambient temperature should be controlled within -25℃-70℃.
2. Explosion-proof electric ball valves should be selected for several situations, such as unstable current, environmental corrosion, flammable and explosive occasions, special media, and no maintenance for a long time.
3. Since the electric mechanism is relatively complicated, it should not be disassembled by itself when it fails to prevent accidents.
4. Under no circumstances should the electric ball valve be knocked or put together
Selection of imported electric ball valve.
1. Valve type/product name, model specification:
2. Nominal diameter of imported electric ball valve:
3. Maximum operating pressure of imported electric ball valve:
4. The maximum service temperature of the valve (minimum):
5. Product application conditions, medium composition:
6. End connection form and flange standard:
7. Valve drive mode:
8. Part material or other requirements
Contact: peng gong
Phone: 18918462396
Tel: 021-59718851
Email: kunage@126.com
Add: Lane 819, Qinghewan Road, Qingpu Industrial Park, Qingpu District, Shanghai