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Shut-off flap

A technology of stop valve and valve disc, which is applied in the direction of lifting valve, multi-way valve, valve device, etc.

Active Publication Date: 2016-01-27
VAG ARMATUREN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of globe valves is that the disc is located directly in the water flow

Method used

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  • Shut-off flap
  • Shut-off flap
  • Shut-off flap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 The shut-off valve shown schematically in has a housing 2, which is provided with a circular through-opening 1, in which a flap-shaped shut-off mechanism 3 is mounted in a pivotable manner about an axis of rotation 4, which The axis is perpendicular to the central axis of the through hole 1 . The housing 2 has an annular base body 5 with front and rear connecting flanges 6 and 7 for connecting pipes.

[0021] The flap-like shut-off mechanism 3 has an eccentric design with a valve disk 8 offset relative to the axis of rotation 4 and lateral hubs 9 and 10 for receiving two rotatably mounted on the housing 2. Drive shafts 11 and 12 in. The eccentric configuration can reduce the stress of the sealing system in the open position. In the illustrated embodiment, the shut-off member 3 has a reinforced design with a cover plate 13 parallel to and spaced apart from the valve disk 8 . The cover plate 13 is connected to the valve disk 8 via intermediate webs 14 extendi...

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PUM

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Abstract

A shut-off flap with a flap-shaped shut-off element, which is supported within a housing in such a way that it can swivel around a rotation axis and which contains a flap disk staggered relative to the rotation axis and lateral hubs to hold two drive shafts which are supported in such a way that they can rotate in the housing. In order to make possible an improvement of the throughflow and a reduction of the actuation torque, flow deflection elements are located on the two hubs.

Description

technical field [0001] The invention relates to a shut-off valve according to the preamble of claim 1 . Background technique [0002] Globe valve is a cut-off mechanism widely used in water resource management. Compared with globe slide valves, globe valves are very compact and require much less installation space, especially for nominal sizes larger than DN 300. Therefore, shut-off valves are mostly installed in piping systems with a nominal size greater than about DN300. The disadvantage of globe valves is that the valve disc is located directly in the water flow. Since the valve disc has to withstand the system pressure difference in the closed position, the valve disc must be designed correspondingly thicker especially for high pressure differences. However, the larger the valve disc size (thicker), the greater its flow resistance against the medium. [0003] EP 1 427 955 A1 discloses a shut-off valve of this type with a flap-like / flap-like shut-off member that is pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/22F16K1/32F16K1/36F16K39/02
CPCF16K1/222F16K1/224F16K39/028F16L55/1018F16K1/2028F16K1/2014F16K47/045F16K31/12
Inventor H·赫罗德
Owner VAG ARMATUREN
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