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Flange valve assembly

A technology of valve components and components, which is applied in the testing of machines/structural components, instruments, fluid tightness testing, etc., and can solve problems such as incomplete closure and leakage of discharge valves

Active Publication Date: 2011-04-20
赫尔穆特·斯帕思
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas and powder entering the gas passage through the discharge valve usually cause leakage due to the complete closure being blocked by the powder, and the risk of the discharge valve not being completely closed also exists
Since in many cases human life is at risk, not to mention expensive equipment, these problems are serious in the environment of very strict fire and explosion protection equipment

Method used

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  • Flange valve assembly
  • Flange valve assembly
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Examples

Experimental program
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Embodiment Construction

[0020] figure 1 The elements of the valve body 1 are shown, including in particular a valve piston 2 moving in a passage through said body. This view also shows two rods 3 which are arranged at the journals of a shaft 4 (sear), which is a shaft with flat edges. Reference is made here to South African Patent 96 / 0718 which fully describes the valve body and associated components. The cover plate 5 covers with a sealing ring 9 the groove in which the rod is located. The pressure switch assembly 14 is fitted to the body, but is not accepted as a sufficiently reliable indicator that can be trusted alone. A filling assembly 23 is fitted to the body of the valve.

[0021] figure 1 Also shown are components of the pressure tester, including a pressure tester piston 27 operating in a cylinder 30 sealed with O-rings 28 and 29 . The ends of the cylinder are closed by a wall 26 which is screwed to the cylinder. Screws 31-33 are shown here for convenience only in the exploded view as...

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PUM

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Abstract

A pressure tester is disclosed for a valve for an explosion and fire suppression device. The tester can be bolted onto the bottom of the valve and used to lift the valve piston off its sear. The force on the valve is then applied to the tester, which can be read off from a gauge to give an indirect but reliable measure of pressure available in the device without a loss of pressure.

Description

technical field [0001] The present invention is in the field of quick opening valves, ie valves that remain supplied with a gas, powder or other substance under pressure and must be opened by actuation to release the gas or powder or both. These valves find application in fire and explosion suppression installations, for example, in mines, factories and other areas at risk of explosion, substations and exchange rooms, etc. Such valves can also be used in military applications. Valves for these applications are well known and include, for example, "Deugra" (Graviner, Germany) and "Explospot" valves. Background technique [0002] An important function of such valves is to maintain pressure over long periods, which is a challenging requirement that conflicts with the requirement to open quickly on start-up. Not only this, but it must also be possible to check the pressure maintained by the valve and to check all moving parts that are free to move without friction. Such inspe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L17/00G01L19/00G01L7/16G01M3/32A62C37/50
CPCG01L19/00G01M3/3272G01L7/16G01L17/00A62C37/50
Inventor 赫尔穆特·斯帕思
Owner 赫尔穆特·斯帕思