What needs to pay attention to construction and installation of a check valve
1), the installation position, altitude, direction of imports and exports must meet the design requirements, pay attention to the direction of flow of the medium should be consistent with the direction of the arrow on the valve body, the connection should be firmly tight.
2), must be visually inspected prior to installation of the valve, the valve plate should be consistent with existing national standards, "Universal Valve logo" GB12220's. For working pressure greater than 1.0MPa and the role played off valve in the main pipe, the installation should be the strength and rigorous performance tests, passing behind the prospective use. Strength test, the test pressure is 1.5 times the nominal duration of not less than 5min, the valve housing, packing should be no leakage in compliance. Tightness test, the test pressure for the nominal pressure of 1.1 times; test duration in line with GB50243 requirements.
The impact should be self-supporting, so that the pressure generated from the piping: 3) Do not check valve in the pipeline to withstand the weight of large non-return valve
Kaitai Valve Group is headquartered at Baoshan City Industrial Zone,Shanghai China, Also it is one of high-tech enterprises in Shanghai, a member of the Association of China General Machinery, and a regular supplier to some of the country’s major energy players such as China Petroleum & Natural Gas Corp, China Petrochemical, China Power and China Sea Oil etc.We mainly produce sales Ball Valve，Gate Valve，Globe Valve，Check Valve，Butterfly Valve，Plug Valve and Strainer.
We can supply the quotation and drawing of valves according to request of customers.
We can delivery valves in time as per our clients’ need.
We also provide the valves service of after-sales.
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