The explosion-proof ball valve is a kind of (spherical) valve that rotates 90° perpendicular to the axis of the channel. It consists of a rotary-type angular-stroke electronic electric actuator and an O-valve structure. It is a rotary type high-performance regulating or switching valve. Automatic control (DCS, PLC system) The input or output of the current signal or voltage signal from the instrument can realize the proportional adjustment of the fluid medium in the process pipeline or the two-position switch control, so as to achieve the flow, pressure, temperature, and Automatic control of parameters such as liquid level.
Characteristics
(1) The explosion-proof ball valve adopts the fixed ball design, and the relative moving parts adopt the self-lubricating material with very small friction coefficient, so the operating torque is small, and the long-term sealing of the sealing grease makes the operation more flexible.
(2) The valve adopts high platform structure and ISO5211 connection standard, which can make the installation of electric/pneumatic actuators more professional.
(3) The explosion-proof ball valve adopts full-diameter or reduced-diameter design, and the flow resistance is small.
(4) Metal hard seal explosion-proof ball valve adopts two-way metal movable sealing structure, with automatic compensation and self-cleaning function, and excellent sealing performance.
(5) The explosion-proof ball valve adopts a fixed ball design and adds a pre-tightening spring, so that the ball valve has an automatic pressure relief function.
(6) Each ball valve has two movable sealing seats, which can be sealed in both directions, so the flow direction of the medium need not be considered during installation.
(7) It has a fireproof and anti-static structure, and a conductive spring is arranged between the valve stem and the valve body and the valve stem and the sphere to avoid electrostatic ignition and ignite the flammable medium. Make sure the system is secure.
(8) Double protection of refractory structure. When the seal is burnt in case of fire, the sealing parts of the ball valve can form a metal-to-metal hard seal structure.
(9) Automatic pressure relief structure. When the liquid medium retained in the cavity of the valve is vaporized due to the temperature rise, and the pressure in the middle chamber is abnormally increased, the medium cavity medium can push the valve seat by itself to automatically release the pressure. To ensure the safety of the valve.
Technical indicators
1. Connection method: butt welding, flange, internal thread.
2. Diameter size: [DN15-DN300].
3. Working pressure: [PN1.6, PN2.5, PN4.0 MPA]].
4. Medium temperature: -20 ° C ≈ 180 ° C. [Materials can be selected according to different industrial controls]
5. Fluid medium: water, oil, gas, gas-based medium.
6. Body material: carbon steel, stainless steel.
7. Sealing material: Polytetrafluoroethylene PTFE, reinforced polytetrafluoroethylene PPL
8. Core material: solid stainless steel ball.
9. Stem material: stainless steel.
10. Filler: Graphite, reinforced polypropylene.
11. Valve body surface: cast steel: matt purple, stainless steel: natural color
Vibration Motor is in the original basis to add a vibrating head, made into a Dc Motor drive with a vibration motor. To produce the shaking force.
6V Dc Vibration Motor is introduced:
6V Dc Vibration Motor volume is generally greater than 15 mm, mainly used in massage chair, massage waist, handheld massager, etc.
Characteristics: small volume, strong vibration;
Features: small size, fast speed, stable performance, low price, can use battery drive,Can change the different materials of the pendulum head
Method of use: the best stable in horizontal plane, installed on the dc 6V Dc Vibration Motor output shaft parts, cannot use a hammer to knock, knock prone to press into the dc 6V Dc Vibration Motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
6V Dc Vibration Motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a vibration motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
Dc Vibration Motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of Dc Vibration Motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you Looking forward to your inquiry. Welcome to our factory.
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Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com