A coaxial integrated plastic breather valve

By adopting a coaxial integrated design and independent inhalation and exhalation valve disc assemblies, the problems of complex structure, large size and heavy weight of existing plastic breather valves are solved, achieving compact and convenient installation and maintenance, and making it suitable for pressure balancing of storage tanks in the petroleum and chemical industries.

CN224453824UActive Publication Date: 2026-07-03江苏复森特种阀门有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏复森特种阀门有限公司
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing plastic breather valves are complex in structure, large in size and heavy in weight, require a lot of installation space, and are cumbersome to replace parts.

Method used

It adopts a coaxial integrated design, with the inner and outer valve bodies integrated. The first and second chambers are connected by a longitudinal connecting channel that runs through the inner valve body. The side interface of the outer valve body can be sealed to the connecting flange or the connecting pipe with a protective net. The inhalation valve disc assembly and the exhalation valve disc assembly are independent of each other, and the stability is improved by the top nut and the anti-drop device.

Benefits of technology

It features a simple structure, small size, light weight, small installation space, and easy replacement of parts. It can be used in both pipe-end and pipeline types, improving stability and convenience of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224453824U_ABST
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Abstract

This utility model relates to the field of breathing valve technology, and more specifically, to a coaxial integrated plastic breathing valve, comprising: a valve body; the valve body includes: an outer valve body with a base assembly at its bottom and an inner valve body coaxially disposed within the outer valve body, the inner valve body dividing the outer valve body into a first chamber and a second chamber; the first chamber and the second chamber are connected by a longitudinally penetrating connecting channel through the inner valve body; a third chamber is disposed within the inner valve body and communicates with the side interface of the outer valve body; an inhalation valve disc assembly is disposed at the top of the inner valve body; and an exhalation valve disc assembly is disposed at the bottom of the inner valve body. This utility model adopts a coaxial integrated design, with the first chamber and the second chamber connected by a longitudinally penetrating connecting channel through the inner valve body. The multiple connecting channels are closely distributed, which can ensure the uniformity of gas flow in the first chamber and the second chamber, resulting in a more compact structure and multiple advantages such as small size, light weight, smaller installation space required, and convenient installation.
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