Balance the pneumatic valve sleeve (2)

self-adjusting pneumatic valve, pneumatic valve is it is through the trim cutting, inlet pressure drop to the outlet pressure required. When the change of inlet pressure and flow, elastic elements and transmission medium outlet pressure their own strength to keep basically remain unchanged. China is now widely used in general used for throttling pneumatic valve, pneumatic valve is conical. In a low effect to make better use of pneumatic valve throttle pressure, but it's easy to generate high pressure to reduce cavitation cutting piece lead to premature failure. Therefore, two or more pressure pneumatic valve is typically used for parallel to improve the system running cost and unstable. In order to solve the problem of high pressure relief, we design a balance of two phase pneumatic valve throttling set.
type pneumatic valve structure is divided into direct action films, corrugated pipe directly, pilot diaphragm, corrugated tube, piston and pilot test, etc. No matter what kind of structure, the balance, through the medium voltage elastic element, throttle opening regulating pneumatic valve, vacuum pneumatic valve is one of the most core components, its design is reasonable or not directly affects the use of pneumatic valve performance.
balance two phase socket sleeve reduced pressure pneumatic valve throttle opening the same size six pneumatic valve structure to a hole in the middle of the accelerator, the average allocation. Pneumatic valve sleeve, the same size of distributed and average allocation for the auxiliary hole bottom ring. Media between the entrance of the pneumatic valve orifice into a tubular space after pneumatic valve through the throttling pneumatic valve, pneumatic valve, due to the tubular space, in the same area, the casing pressure liquid balance of offset each other, so is not affected by the change of inlet pressure, media throttling area, and through the CD, enter the second throttling pneumatic valve to reduce out of hole.
mouth up and down the middle and the intermediate for the total area of the orifice, same cutting stress level similar to that of total throttling pneumatic valve pressure distribution, the speed of the total area is also important to control flow. In addition, in the mouth with ring, on average, layout, eliminating the side force.
two balance type pneumatic valve throttle set has many advantages: (1) to achieve two throttle, so as to solve the problem in high pressure drop and pressure relief, slow down the impact of water, to avoid cavitation, and reduce the noise, low pressure drop, can also be adapted to the reduced pressure.
(2) simple design makes the horizontal pneumatic balance disc, in the vertical direction at the same time, maintain a good balance, reduces the design and manufacture cost.
(3) lateral thrust balance pneumatic valve, geared to the needs of smooth, joint seat life, structural optimization and reasonable.
4. Pneumatic valve can remove the whole fast, easy maintenance.
(5) of the elastic element quadratic throttling the only way out of the pressure, can improve the pneumatic valve outlet pressure stability.