American standard check valve, also known as check valve or check valve, its role is to prevent the pipeline medium backflow. Swing check valve opening and closing parts open or close by the medium flow and force to prevent the backflow of the medium. Swing check valves should generally be installed horizontally in the pipeline.
American standard check valve main structure features:
- Use built-in rocker arm swing structure
- All valves are installed inside the valve body and do not penetrate the valve body
- Except the flange parts are sealed with gasket ring, the whole body has no external leakage point
American standard check valve performance specification parameters:
- Nominal pressure: Class150 ~ 600Lb
Nominal diameter: 1/2" ~ 24"
- Body material: cast steel/Chrome molybdenum steel/stainless steel (304/316/316L)
- Connection mode: flange, butt welding
- Operating temperature range: -20 ~ 550℃
- Applicable media: steam, air, water, oil, etc
Swing check valve, also known as check valve or check valve, its function is to prevent the backflow of media in the pipeline. Swing check valve opening and closing parts open or close by the medium flow and force to prevent the backflow of the medium. Swing check valves should generally be installed horizontally in the pipeline.
Main structural characteristics of swing check valve:
- Use built-in rocker arm swing structure
- All valves are installed inside the valve body and do not penetrate the valve body
- Except the flange parts are sealed with gasket ring, the whole body has no external leakage point
Swing check valve performance specification parameters:
Nominal pressure: PN1.6 ~ 16.0MPa
- Nominal diameter: DN15 ~ 600mm
- Body material: cast steel/Chrome molybdenum steel/stainless steel (304/316/316L)
- Connection mode: flange, butt welding
- Operating temperature range: -20 ~ 550℃
- Applicable media: steam, air, water, oil, etc
The lifting check valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, which belongs to an automatic valve. Flange check valve for piping system, its main role is to prevent the backflow of the medium, to prevent the pump and its drive motor machine reversal, as well as the leakage of the medium in the container.
Main structural characteristics of flange check valve:
- Reasonable product structure, reliable sealing, excellent performance, beautiful shape
- Sealing surface surfacing Co - based hard alloy, wear resistance, corrosion resistance, friction resistance, long service life
- Large load variation, small opening and closing frequency
Flange check valve performance specification parameters:
Nominal pressure: PN1.6 ~ 16.0MPa
- Nominal diameter: DN15 ~ 400mm
- Body material: cast steel/forged steel/stainless steel (304/316/316L)
- Connection mode: flange, butt welding
- Operating temperature range: -20 ~ 450℃
- Applicable media: water, steam, hot oil, nitric acid, acetic acid, etc
The forged steel check valve is a valve that automatically opens and closes the disc to prevent the backflow of the medium by relying on the medium itself.
Main structural characteristics of forged steel check valve:
- The valve body is connected to the valve cover with bolts and nuts
- Wound gasket (316 clips of flexible graphite) seal, or metal ring connection
- The design structure is lift type, ball type, swing type
Forged steel check valve performance specification parameters:
- Nominal pressure: Class800 to 2500Lb
Nominal diameter: 1/4" ~ 2"
- Body material: Forged steel/forged stainless steel (A105/F11/F304(L)/F316(L)/F51)
- Connection mode: flange, thread
- Operating temperature range: -20 ~ 550℃
Applicable media: water, steam, oil, nitric acid, acetic acid, etc
Working principle and use of the product:
Fluorine lined check valve (also known as check valve) the role of this type of valve is to allow the medium to flow in only one direction, and to prevent the direction of flow. Usually the valve works automatically. The disc opens under the action of fluid pressure flowing in one direction; When the fluid flows in the opposite direction, the fluid pressure and the self-recentdisc of the disc act on the seat to cut off the flow.
H41F46 lined fluorine check valve is suitable for all kinds of concentrations of aqua royalty, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids, strong oxidant, FEP is also suitable for all kinds of concentrations of strong alkali organic solvents and other corrosive gases, liquid media pipeline use.
Product structure features:
1, the structure length is short, its structure length is only 1/4~1/8 of the traditional flange check valve
2, small size, light weight, its weight is only 1/4~1/20 of the traditional flange check valve
3. The valve flap closes quickly and the pressure of the water hammer is small
4, horizontal or vertical pipe can be used, easy to install
5, the flow channel is unobstructed, the fluid resistance is small
6, sensitive action, good sealing performance
7. Short stroke of valve disc and small impact force of closing valve
8, the overall structure, simple and compact, beautiful shape
9, long service life, high reliability
