Double-seal axial-flow type check valve

A double-sealed, axial-flow technology, applied in valve details, control valves, valve devices, etc., can solve the problems of valve internal leakage, valve leakage, large valve opening pressure loss, etc., to ensure reliability, low pressure loss, Good sealing performance

Pending Publication Date: 2017-12-29
上海伟伦阀门集团江苏有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The general axial flow check valve is a split structure, the valve has leakage points, the installation requirements of the valve are limited, the opening pressure loss of the valve is large, and the valve disc cannot be seated accurately, so the valve has certain internal leakage, and Noise is generated during opening and closing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-seal axial-flow type check valve
  • Double-seal axial-flow type check valve
  • Double-seal axial-flow type check valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Such as Figure 1 to Figure 3 As shown, the double seal axial flow check valve of the present invention includes a valve body 1, a valve disc assembly 2 and a valve stem 3, the valve disc assembly 2 includes a valve disc 21, and a valve is used between the valve stem 3 and the valve disc 21. The flap cover 22 is connected, the valve flap 21 is embedded with a sealing ring 23, the sealing ring 23 is a reinforced polytetrafluoroethylene sealing ring, the valve flap 21 is provided with an O-shaped sealing ring 4, and the surface of the valve flap 21 is also provided with a fan-shaped flow channel The notches 5 and fan-shaped flow channel notches 5 are evenly distributed along the circumference of the valve disc 21, and the fan-shaped flow channel notches 5 are processed on the surface of the valve disc 21 to ensure the flow rate.

[0021] The valve body 1 is also provided with a channel 6 for the flow of the medium and a flow guide assembly, the flow guide assembly include...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a double-seal axial-flow type check valve and relates to the technical field of check valves. The double-seal axial-flow type check valve comprises a valve body, a valve flap assembly and a valve rod. The valve flap assembly comprises a valve flap, the valve rod is connected with the valve flap through a valve flap cover, a sealing ring is embedded into the valve flap and is a reinforced poly tetra fluoro ethylene sealing ring, an O-shaped sealing ring is arranged on the valve flap, and the surface of the valve flap is further provided with fan-shaped runner notches which are uniformly distributed along the circumference of the valve flap. The axial-flow type check valve adopts a double-seal structure, so that the excellent sealing performance of the valve is ensured, and a shock absorption and silencing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of check valves, in particular to a double-seal axial flow check valve. Background technique [0002] The general axial flow check valve is a split structure, the valve has a leakage point, the installation requirements of the valve are limited, the opening pressure loss of the valve is large, and the valve disc cannot be seated accurately, so the valve has certain internal leakage, and There will be noise during opening and closing. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a double seal axial flow check valve. [0004] The present invention adopts following technical scheme: [0005] The double seal axial flow check valve includes a valve body, a disc assembly and a valve stem, the disc assembly includes a disc, the valve stem and the disc are connected by a disc cover, and the disc Embedded with a sealing ring, the sealing ring i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16K15/06F16K27/02
CPCF16K15/063F16K27/0209
Inventor 赵波李成鑫季明生
Owner 上海伟伦阀门集团江苏有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap