Combination ball valves can be customized
Large diameter pneumatic valve plate brake hydraulic pressure test device (4)
by：AIRWOLF
2021-01-16
Summary of
as the technology, large diameter, the development of high temperature, high pressure pneumatic valve has been widely used in flat panel display. Slowly-closing micro devices limit the size of the pneumatic valve and pneumatic valve test, a lot of large diameter plate brake pneumatic valve can not according to the hydraulic pressure test, its design according to the characteristics of the pneumatic valve pressure test equipment.
pressure test method of large diameter butterfly pneumatic valve check pneumatic valve, water pressure test in general blind flange bolts bolt pre-tightening force of the production form sealing gasket compression Xixingtaifa, pneumatic valve outlet seal is realized. Seal deformation of the work shown in the diagram. F in the external pressure, compressed as clip aerodynamic lift check valve tentative signs of quantity. When the blind internal pressure, relax the signs of spring, compression decreases, and when there is a sign of relaxation, in a sealed I this curve to a certain extent, reflects the signs of leakage is a minimum requirement for clamping force sealed
in production, check the pneumatic valve seal, as long as reasonable choice, because, in the blind rigid seal, in order to meet the minimum clamping force is very easy to meet. But in actual production, due to insufficient rigidity, blindly eventually too much too much under the pressure of the deformation, the deformation of bolt looseness, air pollution index of cast steel check pneumatic valve seal compression spring American standard is too high, causing low pressure sealing gasket, leading to the formation of seal leakage pressure test failure. In order to realize the safety and reliability of hydraulic test, general by increasing used to achieve good sealing blind and rigidity. However, the large diameter high pressure stress tests, infinite, pneumatic valve, in order to improve the rigidity of the blind, the high quality of seals are used in the process of implementation, will increase the cost of production, there are big limitations.
analysis under the testing pressure, blind cosmetic check pneumatic valve is force F = polystyrene
F pressure equation, we can see from the pressure of pressure test, only by determining force structure, in order to reduce the face area, in the face of aerodynamic lift check valve pressure, reduces the implementation. When the pressure decreases, and the lowest gasket compression force is reduced, the blind man's rigid demand will be reduced correspondingly.
nominal mm in diameter, inlet and the analysis of the case mm at the bottom of the pneumatic valve body diameter of exports. According to the type ( ） Blind pressure test can ability F = thousands of cattle. Using traditional methods such as A steel circular rigid, H = mm, radius R = eight hundred and ninety mm, hydraulic pneumatic valve elastic modulus E = water level control. X ^ mpa, and the thickness of the core rigidity. By mechanical analysis, the blind can not meet the requirements of pressure testing of strength and stiffness requirements, pressure test can't be. Reinforced
pressure test problem of insufficient rigidity lying in spherical dual purpose of legislation, pneumatic valve equipment made to improve its structure. Blind test to your body's stress test, stress test in the end, by reducing the stress area, reducing the pressure at the end of reduce the pre-tightening force gasket, to achieve safety and reliable stress tests. Force of the new experiment device as shown. Stiffness of the blind.
6, conclusions by the actual use of pressure testing equipment improved micro resistance slowly-closing check butterfly pneumatic valve has good effectiveness, to solve the problems of the large diameter high pressure pneumatic valve hydraulic test.
this site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve
as the technology, large diameter, the development of high temperature, high pressure pneumatic valve has been widely used in flat panel display. Slowly-closing micro devices limit the size of the pneumatic valve and pneumatic valve test, a lot of large diameter plate brake pneumatic valve can not according to the hydraulic pressure test, its design according to the characteristics of the pneumatic valve pressure test equipment.
pressure test method of large diameter butterfly pneumatic valve check pneumatic valve, water pressure test in general blind flange bolts bolt pre-tightening force of the production form sealing gasket compression Xixingtaifa, pneumatic valve outlet seal is realized. Seal deformation of the work shown in the diagram. F in the external pressure, compressed as clip aerodynamic lift check valve tentative signs of quantity. When the blind internal pressure, relax the signs of spring, compression decreases, and when there is a sign of relaxation, in a sealed I this curve to a certain extent, reflects the signs of leakage is a minimum requirement for clamping force sealed
in production, check the pneumatic valve seal, as long as reasonable choice, because, in the blind rigid seal, in order to meet the minimum clamping force is very easy to meet. But in actual production, due to insufficient rigidity, blindly eventually too much too much under the pressure of the deformation, the deformation of bolt looseness, air pollution index of cast steel check pneumatic valve seal compression spring American standard is too high, causing low pressure sealing gasket, leading to the formation of seal leakage pressure test failure. In order to realize the safety and reliability of hydraulic test, general by increasing used to achieve good sealing blind and rigidity. However, the large diameter high pressure stress tests, infinite, pneumatic valve, in order to improve the rigidity of the blind, the high quality of seals are used in the process of implementation, will increase the cost of production, there are big limitations.
analysis under the testing pressure, blind cosmetic check pneumatic valve is force F = polystyrene
F pressure equation, we can see from the pressure of pressure test, only by determining force structure, in order to reduce the face area, in the face of aerodynamic lift check valve pressure, reduces the implementation. When the pressure decreases, and the lowest gasket compression force is reduced, the blind man's rigid demand will be reduced correspondingly.
nominal mm in diameter, inlet and the analysis of the case mm at the bottom of the pneumatic valve body diameter of exports. According to the type ( ） Blind pressure test can ability F = thousands of cattle. Using traditional methods such as A steel circular rigid, H = mm, radius R = eight hundred and ninety mm, hydraulic pneumatic valve elastic modulus E = water level control. X ^ mpa, and the thickness of the core rigidity. By mechanical analysis, the blind can not meet the requirements of pressure testing of strength and stiffness requirements, pressure test can't be. Reinforced
pressure test problem of insufficient rigidity lying in spherical dual purpose of legislation, pneumatic valve equipment made to improve its structure. Blind test to your body's stress test, stress test in the end, by reducing the stress area, reducing the pressure at the end of reduce the pre-tightening force gasket, to achieve safety and reliable stress tests. Force of the new experiment device as shown. Stiffness of the blind.
6, conclusions by the actual use of pressure testing equipment improved micro resistance slowly-closing check butterfly pneumatic valve has good effectiveness, to solve the problems of the large diameter high pressure pneumatic valve hydraulic test.
this site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve
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