The working principle of pneumatic diaphragm pump is to rely on rotating spool to make the valve unblocked or blocked, switch light, small volume, can be made of a large diameter, reliable sealing, simple structure, easy maintenance, sealing surface and sphere often in the closed state, easy to be medium erosion, in various industries have been widely used.
Pneumatic diaphragm pump and plug valves is belong to one type of valve, only its closure is a ball, the ball around the center line of the body as a rotation to achieve a kind of open and close the valve, widely used in natural gas, oil, chemical industry, metallurgy, papermaking, electric power, mining, printing, dyeing, biological pharmacy, daily chemical, food and beverage, water treatment and air treatment and other industries fluid control or adjust the control, pneumatic instrument and automation systems.
AODD Diaphragm pump
AODD-32 Stainless steel diaphragm pump
Pneumatic diaphragm pump with double acting and single acting type (spring return), rack and pinion transmission, safe and reliable;
Large diameter valve adopts AW pneumatic actuator fork drive, reasonable structure, large output torque, double action type and single action type (spring return).
The valve body of pneumatic diaphragm pump can be designed into three forms of casting structure, forging structure and all-welded structure according to the needs of users and the actual working conditions, among which the all-welded ball valve is mainly suitable for underground use.
Pneumatic diaphragm pump adopts lip type elastic seal ring structure design, to ensure the reliability of the seal, for low pressure, ultra-low pressure or vacuum;
Ball valve, the use of plate spring loaded valve seat sealing structure, can ensure the long-term reliable sealing of the ball valve, in the middle and high temperature ball valve seat materials can be selected to polystyrene or metal materials.
Pneumatic diaphragm pump according to the size of the pressure, the nature of the medium and the different sealing requirements and the choice of the ball before the sealing structure, ball after the sealing structure or before and after the double sealing structure.
When the valve is closed, the upstream and downstream side of the seat that liquid blocking, body lumen of stagnant content can be excretion through drainage device, lumen abnormal pressure rise, lumen medium can rely on itself thrust to push the seat and automatic relief, to ensure the safety valve, the valve stem has inverted sealing structure in the bottoms of inverted sealing force with medium pressure increases with increasing of the seal, we can ensure that the valve stem and reliable seal, and, when abnormal booster valve stem, valve stem will not spit out.
According to the working conditions and user needs, the pneumatic diaphragm pump can be designed as a fireproof structure.
The fireproof design of ball valve carries out the regulation of the standard, once the fire occurs and makes the soft seal ring to burn out, the fireproof structure of ball valve can prevent the medium of a large number of leaks, prevent the further expansion of the fire.
When operating, due to the friction between the ball and the seat, the electrostatic charge will be generated and accumulated on the ball. In order to prevent the generation of electrostatic spark, an electrostatic device is installed on the valve to export the charge accumulated on the ball.