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Two-way valve

A technology of two-way valve and valve body, applied in the direction of valve details, diaphragm valve, valve device, etc., can solve the problem of high maintenance cost

Inactive Publication Date: 2009-06-03
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, according to a general two-way valve, in order to allow the operator to confirm whether the two-way valve is in an open state or a closed state, a detection device such as a sensor for detecting the position of the valve plug is basically installed inside the valve body. If the detection device If it does not work properly, all components including the two-way valve detection device must be replaced, so the repair cost is quite high

Method used

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  • Two-way valve
  • Two-way valve
  • Two-way valve

Examples

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Embodiment Construction

[0011] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0012] exist figure 1 In, reference numeral 10 denotes a two-way valve of an embodiment of the present invention.

[0013] The two-way valve 10 basically includes a connection portion 14 detachably mounted on a pair of pipes 12a and 12b, a valve mechanism is located above the connection portion 14, and a control pressure supply portion 18 is used to supply control pressure to activate the valve mechanism. 16; a detection part 19 for detecting whether the two-way valve 10 is opened (ON state) or closed (OFF state).

[0014] The connection part 14, the valve mechanism 16, the control pressure supply part 18 and the detection part 19 are installed as a whole.

[0015] The connecting portion 14 has a first opening 20a and a second opening 20b on opposite ends thereof, respectively. Additionally, the connecting portion 14 includes a body 24 , a pair of inner members...

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PUM

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Abstract

A two-way valve has a proximity switch attached detachably to the outside of a bonnet. A metallic detection member is connected to an end of a rod which is displaced in unison with a diaphragm for opening and closing a fluid passage in the two-way valve. The proximity switch detects the metallic detection member for detecting whether said two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where the fluid passage is closed.

Description

technical field [0001] The present invention relates to a two-way valve having a first opening and a second opening for introducing and discharging pressurized fluid in both directions. Background technique [0002] Typically, two-way valves have been used in fluid lines or the like. The two-way valve has a first opening and a second opening for introducing and discharging pressurized fluid, a fluid channel communicates between the first opening and the second opening through a valve plug, and the valve plug operates under the control pressure supplied by the control port . [0003] Usually, this kind of two-way valve is equipped with detection devices such as sensors on the valve body close to the valve plug. These detection devices are used to detect the movement of the valve plug. The detection device supplies the detection signal to a controller, and the controller confirms according to the detection signal. valve plug movement. [0004] However, according to a genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/00F16K7/17F16K31/122F16K37/00
CPCF16K37/0033F16K37/0041F16L47/041Y10T137/8242F16K7/00F16K7/17F16K31/122F16K37/00
Inventor 深野喜弘内野正
Owner SMC CORP