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Two-piece valve

A condition and sealing surface technology, applied in the direction of diaphragm valves, control valves, valve devices, etc., can solve the problem of expensive manufacturing valves and achieve the effect of simplifying assembly

Inactive Publication Date: 2007-03-28
EATON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resiliently biased attachment of the flapper to the nipple requires multiple parts and assembly steps, making the valve expensive to manufacture

Method used

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  • Two-piece valve
  • Two-piece valve

Examples

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Embodiment Construction

[0012] 1 and 2 illustrate a two-piece valve 100 according to one embodiment of the invention. The valve 100 includes a nozzle 102 with a passage 104 which is closed by a normally closed flap 106 . The nipple 102 has a sealing surface 108 that contacts the flap 106 when the flap 106 is closed. In the embodiment shown in FIGS. 1 and 2 , the baffle 106 and sealing surface 108 are generally circular. The exact shape of the adapter 102 depends on the application in which the valve 100 will be used, and thus is not part of the present invention.

[0013] A slot 110 formed in the nipple 102 holds the baffle 106 in place. As shown in FIG. 2 , the baffle 106 has a neck 112 that is narrower than the surrounding portion of the baffle 106 . The flapper 106 simply snaps into the groove 110 during valve assembly. The groove 110 securely holds the neck 112 to prevent the flap 106 from moving from its original position. Furthermore, the groove 110 is preferably narrow enough to hold the ...

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PUM

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Abstract

A two-piece valve has a flexible flap with a neck that engages with a slot on a spud to close a passage in the spud. When an object is inserted into the passage, the flap bends to an open position to allow flow through the passage. When the object is removed from the passage, the resiliency of the flap causes the flap to return to the closed position without any external biasing device. The flexibility of the flap material eliminates the need for a separate hinge mechanism or flap biasing mechanism in the valve.

Description

technical field [0001] The present invention relates to valves, and more particularly to a simplified valve assembly with a reduced number of parts. Background technique [0002] Flapper valves are often used in fluid and vapor control systems to open and close passages in piping. These valves are usually biased in a closed position and can be pushed open when an object, such as a siphon hose, is inserted into the pipe. For example, if a flapper valve is used as a nozzle, the flapper door in the valve is biased towards the closed position and is pushed open by fluid flow when refueling. When fluid flow ceases, the bias force closes the baffle, allowing the baffle to seal closed the passage. [0003] The flapper itself is usually a rigid plastic or metal door attached to the stub using a spring or hinge mechanism. Attaching the baffle to the nipple in a resiliently biased manner requires multiple parts and assembly steps, making the valve expensive to manufacture. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K7/12
CPCY10T137/7891F16K15/144F16K15/16F16K25/005
Inventor R·P·本杰
Owner EATON CORP