Internal pressure valve working principle

The internal pressure type valve eliminates the headache packing and the huge coarse frame from the layout, the upper seal is changed from the traditional packing arc surface seal to the simple plane seal, the seal strength is appropriate, the effort of opening and closing can be saved, or can be omitted. To reduce the deceleration equipment on some valves to save labor, the wear of the sealing surface is self-compensated, especially the self-compensating function of the upper seal. The reliability and durability of the valve are greatly improved, and the durability can be compared with the traditional valve. Accounting, prevention and reduction of many man-made damage, the most important function of self-compensation of wear in the seal strength is small (abrasion is lighter in nature) and wear self-compensation, the valve's operating cycle must be long.

The internal pressure type valve saves the traditional support, the volume component of the valve is correspondingly reduced, and the larger the path is, the larger the undulation decreases. (The component ratio can be reduced by 10% to 40%.) The valve stem has a "pole" and a "reclining position". Rods, "stem rods" or combination valve stems are available for selection. Use a horizontal rod on the valve. Rod or combination valve stem, valve stem length does not exceed 200 mm,

This kind of internal pressure technique is widely used in the valve area, such as gate valve, globe valve, ball valve, butterfly valve, electric valve, pneumatic valve, etc. It can be portrayed as a progressive stop valve and can also be made as a cut-off valve. Valve, used on electric or pneumatic valves, can greatly reduce the power,

Using this skill, the valve's drawing space expands, according to the specific requirements of the valve, depicting a new valve flap and a more ambitious opening and closing method (the plastic faucet I was doing at the time was the selection of the cam to open and close, very ambitious.