Differential type pneumatic angle pedestal valve

A pneumatic angle seat valve, differential technology, applied in the direction of lift valve, valve detail, valve device, etc.

Active Publication Date: 2009-12-30
HANGZHOU FANGYUAN PLASTICS MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Based on the above, the traditional angle seat valve has an

Method used

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  • Differential type pneumatic angle pedestal valve

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Embodiment Construction

[0008] Such as figure 1 As shown, the valve has valve body 7, piston 6, plastic cylinder barrel 5, return spring 4, indicator 3, executive cylinder 2, transparent observation window 1, piston rod 8, differential fixed piston 9, differential movable cylinder 14, It is composed of Pansysel sealing ring 10, valve seat sealing ring 11, valve seat 12, valve seat guide head 13, balance hole A16, and balance hole B15. There is a differential movable cylinder and a differential fixed piston inside the valve seat, one end of the differential movable cylinder is connected with the differential fixed piston, and the other end is connected with the guide head of the valve seat; a balance hole B is provided on the differential movable cylinder to balance with the guide head Hole A communicates.

[0009] The diameter of the sealing surface of the valve is DN1, and the diameter of the differential movable cylinder is DN2. The characteristics of the valve are: when a medium flows in (assumin...

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Abstract

The invention relates to a differential type pneumatic angle pedestal valve, relating to a pneumatic angle pedestal valve. The valve comprises a valve body, a piston, a plastic cylinder, a return spring, an indicator, an actuating cylinder, a transparent observation window, a piston rod and a valve seat. The valve is mainly technically characterized in that a differential moveable cylinder and a differential fixed piston are arranged in the valve seat, wherein one end of the differential moveable cylinder is connected with the differential fixed piston, and the other end thereof is connected with the diversion head of the valve seat; and a balance hole B is arranged on the differential moveable cylinder and is communicated with a balance hole A of the diversion head. By adopting the differential type angle pedestal valve, the invention increases the flexibility and the pressuretightness of the valve; and the invention also greatly reduces the cylinder diameter of the actuating cylinder, the consumption of compressed air is reduced, for example, the cylinder diameter of a Phi 65 valve actuating head is only Phi50, and the pressure of controlled media is higher.

Description

Technical field: [0001] The invention relates to a pneumatic angle seat valve. Background technique: [0002] Because the switch of the original angle seat valve is completely guaranteed by the active force of the cylinder and the spring. The waterproof hammer base imports the medium, although when the compressed air is relatively low, it is easier to open. However, when the pressure of the controlled medium is greater than the preload of the spring, the valve opens, resulting in a loss of control. If the inlet is on the seat, when the force generated by the pressure of the air medium is greater than the force generated by the cylinder, the valve will not be easy to open. Moreover, in traditional pneumatic angle seat valves, the actuator heads of the cylinders are all very large. For example, the cylinder diameter of the cylinder of the angle seat valve with a diameter of Φ65 is Φ125. Based on the above, the traditional angle seat valve has an obvious upper limit for eac...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K31/124
Inventor 袁国清袁健华
Owner HANGZHOU FANGYUAN PLASTICS MASCH CO LTD
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