Description
Threaded swing check valve is installed on one-way flow pipelines. It is mainly composed of valve body, disc, bonnet and gasket. This threaded check valve is used to prevent backflow and leakage of medium in the pipe. It opens and closes automatically depending on force from media flowing. Threaded swing check valve allows medium to flow through it in only one direction, and prevents reverse direction flow. Disc will open under the pressure of forward flow fluid. When fluid flows in reverse direction, the disc will be closed by fluid pressure and dead weight so as to cut off the flow. This stainless steel check valve is also applied to stop reversal of pump and driving motor.
Application
Threaded swing check valves can be installed easily both on vertical and horizontal pipelines. They are widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and other pipeline systems.
Advantages
1. Valve Body
Precision casting technology is adopted for manufacturing valve body.
2. Disc
1) Disc closes fast because the travel journey of disc is small.
2) CNC processing technology is adopted to produce disc. Disc of threaded swing check valve is with high strength and stiffness.
3) Disc restrainer is designed to prevent that the open position of disc is too high to be shut down.
4) The disc sealing surface can be customized. Customer can choose sealing material for disc sealing surface according to needs.
3. Valve Surface
Two times shot blasting processing of valve surface make threaded swing check valve look fine and smooth.
4. Rocker
Rocker is with enough strength. Adequate degree of freedom makes it very easy for disc to close.
5. Axis Pin
High strength solid axis pin is installed precisely to assure reliable performance and long service life of threaded swing check valves.
Parameters
|
Dimensions
|
Size
Item
|
1/2"
|
3/4"
|
1"
|
11/4"
|
11/2"
|
2"
|
21/2"
|
3"
|
|
D
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
|
L
|
65
|
80
|
90
|
105
|
120
|
140
|
180
|
200
|
|
H
|
42
|
51
|
60
|
64
|
75
|
81
|
93
|
104
|
Suggestions
1. When installing the valve, please ensure that the media flow direction should be consistent with the arrow direction marked on valve body. Vertical disc lift check valves should be installed on vertical pipes. Horizontal disc lift valve should be mounted on horizontal pipes.
2. When operating the valve, do not make it bear weight in pipeline. Large check valve should have independent support to ensure that threaded swing check valve will not be affected by pressure from pipe system.
Lanteky Valve Industry is a professional manufacturer of various valves and strainers in China. Our main products cover ball valves, gate valves, globe valves, check valves and Y type strainers. Our threaded swing check valves are widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and other pipeline systems.
