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Control valve

A technology of regulating valve and valve stem, applied in the field of regulating valve, can solve problems such as easy failure, and achieve the effects of easy installation, reduced tightening torque, and improved force transmission

Active Publication Date: 2020-12-25
SAMSON AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Force transmission from the valve stem to the valve piston is therefore carried out via a single threaded connection, which is prone to failure

Method used

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Experimental program
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Embodiment Construction

[0077] like figure 1 The shown regulating valve 2 comprises a valve housing 4 with an inlet 6 and an outlet 8 and a valve seat 10 which is closed or opened via a valve piston 12 and via a valve stem 14 which is connected to the valve piston 12 and to the regulating drive. is actuated. For this purpose, the valve stem 14 is supported via the plug sleeve 16 on the cover 18 and via the guide projection 20 on the cover 18 of the regulating valve 2 .

[0078] figure 2 The enlarged illustration shows the flange 22 secured against rotation relative to the valve stem 14 on the valve stem 14 . The flange 22 is connected to the valve stem 14 by a threaded connection 26 . The flange 22 and the piston bottom 24 of the valve piston 12 are connected to one another by a plurality of screws 34 which are arranged on the flange 22 or on the piston bottom 24 distributed over a perforated disk. The flange 22 has a bore 30 and the piston base 24 has a threaded bore 32 into which a bolt 34 is ...

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PUM

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Abstract

The invention relates to a regulating valve for regulating the process fluid flow of process production equipment, the regulating valve comprises a valve housing with a valve seat and a valve piston connected to a valve stem, the valve piston cooperates with the valve seat to open and closing the regulating valve, characterized in that, in order to connect the valve stem to the valve piston, a flange is fixed on the valve stem, and the flange is connected to the valve through a plurality of threaded connections. The valve piston is threadedly connected.

Description

technical field [0001] The present invention relates to regulating valves, in particular the connection between the valve stem and the valve piston / throttle body. Background technique [0002] WO2009076068A1 discloses a device for aligning a closure member and a valve stem to be used with a valve. An exemplary valve includes a stem and an obturator with a first opening to receive at least a portion of the stem. The valve also includes a retainer having a first section and a second section. The first section has a first cross-section, the second section has a second cross-section larger than the first cross-section, the section between the first section and the second section constitutes a positioning surface for aligning the rod and obturators. [0003] In the device according to WO2009076068A1, the valve stem protrudes from above into the central bore of the valve piston / obturator. The assembly is centered by means of cylindrical portions on the valve stem and valve pis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/48
CPCF16K1/482F16K3/267F16K3/314F16B9/052F16K1/487
Inventor D·格兰茨J·扬茨M·梅尔谢尔A·赖因塔勒T·韦尔施
Owner SAMSON AG