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Control Or Shutoff Valve

A locking device, closed position technology, applied in valve devices, valve operation/release devices, cocks including cut-off devices, etc., can solve problems such as inability to reduce pressure difference

Active Publication Date: 2017-08-18
VAG ARMATUREN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is usually not possible to reduce the differential pressure completely without cavitation by means of the adjusting element

Method used

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  • Control Or Shutoff Valve
  • Control Or Shutoff Valve
  • Control Or Shutoff Valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] exist figure 1 and 2 shows, in different views, a longitudinal section of a regulating device designed here as an annular piston valve for regulating the water flow or for regulating the water pressure. The illustrated annular piston valve comprises a housing 1, preferably made of ductile cast iron, which has an outer part 3 provided with a connecting flange 2 and is supported on the inner side of the outer part 3 by holding ribs 4 The inner guide part 5. An annular channel 6 is defined between the outer part 3 and the inner guide part 5 of the housing 1 , through which water or another medium can flow from the inlet 7 to the outlet 8 of the housing 1 .

[0028] If according to figure 1 and 2 Consequently, in the inner guide part 5 of the housing 1 , which is open towards the outlet 8 , a closing body 9 designed here as a closing piston is axially displaceably guided. The throughput through the annular channel 6 can be controlled by axial displacement of the piston...

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PUM

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Abstract

A control or shutoff valve with a housing includes a valve seat arranged within housing between feed and a discharge, and a shutoff element arranged to be moveable relative to the valve seat in the housing. At least one feed channel leading to the valve seat is arranged in the housing to supply a pressure medium to reduce cavitation phenomena.

Description

technical field [0001] The invention relates to an adjusting or locking device according to the preamble of claim 1 . Background technique [0002] Such an adjusting or locking device is known from US 2,679,856 A. The adjusting or locking device has a housing, a valve seat arranged inside the housing, and a closing body arranged inside the housing and displaceable relative to the valve seat for forming a throttle position. Also provided in the housing is an inlet channel leading to the valve seat for the inlet of pressure medium. The inlet channel formed in the inner housing part by the longitudinal groove and the radial channel leads to a separate bore which leads downstream of the valve seat. [0003] GB 520 647 A discloses a valve having a valve seat arranged inside a housing and a closure body arranged inside the housing and displaceable relative to the valve seat. The valve seat is formed here by two annular components, between which an annular space is delimited. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/24F16K3/314F16K3/312F16K47/02
CPCF16K1/00F16K3/24F16K3/312F16K3/314F16K47/02F16K47/08F16K1/42F16K1/12F16K3/246F16K5/201F16J15/3448F16K47/04F16K1/54F16K31/60
Inventor H·赫罗德
Owner VAG ARMATUREN