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With the advantages of low flow resistance coefficient, low water hammer pressure, low noise, good flow performance and fast response, the axial flow check valve is widely used in oil and gas long-distance pipeline, compressor and pump outlet of large-scale ethylene plant. As the key part of pipeline system, the performance and life of check valve directly affect the safety of pump unit and pipeline. Especially when the valve is closed, the instantaneous velocity of the disc directly affects the impact load of the disc on the valve seat, and affects the service life and reliability of the valve. When analyzing the dynamic performance of axial check valve, the traditional test method often consumes a lot of time and money, which greatly increases the production cost of the product.

 

The device is suitable for clean natural gas, water, steam and other medium pipelines under the temperature of - 29 ~ 100 ℃. It has the advantages of small flow resistance, good flow state and long service life. It is an ideal device to prevent medium reverse flow.

1. Before valve installation, it is necessary to check whether there are welding slag, crushed stone and other foreign matters in the adjacent pipeline and valve, and keep the valve cavity clean;
2. Confirm that the flow direction of valve identification is consistent with the flow direction of pipeline medium;
3. Confirm whether the diameter, pressure, medium temperature and other parameters of the pipeline system used are consistent with the valve identification;

1. Before valve installation, it is necessary to check whether there are welding slag, crushed stone and other foreign matters in the adjacent pipeline and valve, and keep the valve cavity clean;
2. Confirm that the flow direction of valve identification is consistent with the flow direction of pipeline medium;
3. Confirm whether the diameter, pressure, medium temperature and other parameters of the pipeline system used are consistent with the valve identification; 1. The product is composed of valve body, guide body, axial movement disc and spring components. The product can effectively prevent the backflow of media. Ensure pipeline safety.
2. The valve body, disc and tail vertebrae are designed into streamlined channels, which have good fluid performance and minimize flow resistance and pressure.
3. The high performance spring material HT / inconelx-750 has excellent corrosion resistance, oxidation resistance and excellent mechanical properties to ensure the long-term operation of the spring.
4. Silent operation, so as to eliminate the noise and water hammer in the valve pipeline and ensure the safety of equipment and pipeline.
5. Quick response of opening and closing, high reliable preloading spring makes the valve disc respond quickly to the change of fluid pressure.
6. Compact structure, convenient installation, vertical and horizontal installation.
7. The valve adopts alloy steel surfacing sealing surface, which is wear-resistant, corrosion-resistant and has long service life.
8. The pressure range of the valve is relatively wide.

1. The product is composed of valve body, guide body, axial movement disc and spring components. The product can effectively prevent the backflow of media. Ensure pipeline safety.
2. The valve body, disc and tail vertebrae are designed into streamlined channels, which have good fluid performance and minimize flow resistance and pressure.
3. The high performance spring material HT / inconelx-750 has excellent corrosion resistance, oxidation resistance and excellent mechanical properties to ensure the long-term operation of the spring.
4. Silent operation, so as to eliminate the noise and water hammer in the valve pipeline and ensure the safety of equipment and pipeline.
5. Quick response of opening and closing, high reliable preloading spring makes the valve disc respond quickly to the change of fluid pressure.
6. Compact structure, convenient installation, vertical and horizontal installation.
7. The valve adopts alloy steel surfacing sealing surface, which is wear-resistant, corrosion-resistant and has long service life.
8. The pressure range of the valve is relatively wide.

model	ACH41H-16C/P	ACH41H-25C/P	ACH41W-40	ACH41W-64	ACH41H-100
Nominal pressure	PN16	PN25	PN40	PN64	PN100
Shell strength	2.4	3.8	6.0	9.6	15.0
High pressure seal	1.8	2.8	4.4	7.1	11.0
Applicable media	Water, oil, gas, etc
Applicable temperature	≤400℃

valve body	Disc	Deflector	Sealing pair	Stem	Spring
Cast steel WCB CF8	Cast steel WCB CF8	Cast steel WCB CF8	Surfacing of stainless steel	1Gr18Ti9	HT/INCONELX-750