It is necessary to verify that the upstream and downstream pipelines of the valve have been relieved of pressure before disassembling and disassembling
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The valve is forbidden to be transported by hanging on the handwheel with a hook. Before the valve is used, both ends of the flow channel must be plugged with valve sleeves to prev...
The pipelines before and after the valve are ready, the pipelines should be coaxial, and the sealing surfaces of the two flanges of the flange connection valve should be parallel. ...
The detailed valve and pipe flange installation method are as follows
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The operating pressure shall not exceed the pressure in the product performance specification table and the operating temperature of the
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The customer should provide the valve type, size, pressure, temperature, and description, etc.
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Note: For more than two times of switching (excluding the second time), sealing grease must be added to make up for the natural leakage of sealing
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DASTON 7903 is formulated from synthetic fluids, thickened by organic clay thickener.
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Process of opening and closing of the valve. When open the valve, firstly turn the handwheel to make the plug lifted and separated with the sealed
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Before delivery LIIXN made test for all the valves,and why it also have leakage? We doubt that: 1. When the valve is make pressure test, there will be force to cause the packing to expand, and after the te...
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Our metal seated Knife Gate Valve is made as per the specification of MSS SP-81.As we see, the article 10.2 of this standard specified the leakage rate of
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LIXIN DBB Plug Valve is designed, manufactured,tested according to API 6D, it has DBB function of API 6D . Mechanical clamping
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