High pressure fluid on-off valve and assembly thereof and method of use

By using a pre-assembled high-pressure switching valve core box, the problem of known valves being prone to failure during frequent switching is solved, enabling rapid replacement and a simplified maintenance process, reducing maintenance time and system downtime risk.

CN122270643APending Publication Date: 2026-06-23FLOW INTERNATIONAL CORP
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Patent Information

Application Number
CN202480075422.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-01
Filing Date
2024-11-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

It is known that switching valves in high-pressure fluid systems are prone to failure during frequent switching, leading to leakage and pressure loss. Furthermore, maintenance is time-consuming and may damage other components, causing system downtime.

Method used

The pre-assembled high-pressure switching valve core box is replaced in the valve body by translational movement, avoiding the disassembly and realignment of complex parts, maintaining the connection of other system components, and simplifying the maintenance process.

Benefits of technology

This enables rapid replacement and maintenance of high-pressure switching valves, reduces maintenance time and impact on the system, extends actuator lifespan, and reduces the risk of component damage.

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Abstract

Disclosed herein are components, systems, and methods for improving the performance and maintenance of high pressure fluid systems, such as waterjet cutting systems. In particular, embodiments of an on-off valve are disclosed that include a valve cartridge and a valve body. The valve cartridge houses a valve core, a seal, and a valve seat, and the valve cartridge is removable from the valve body while the valve body remains coupled to components of the high pressure fluid system, including a source of pressurized air, a source of high pressure fluid, and a work tool (e.g., a waterjet cutting head).
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Citation Information

Patent Citations

  • Components, systems and methods for forming a gasketless seal between like metal components in an ultrahigh pressure system

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