1. What is the nominal pressure PN (MPa)?  The reference value related to the pressure resistance of piping system components refers to the design given pressure related to the mechanical strength of the piping component.  The nominal pressure is gen...

Valves are pipeline accessories used to open and close pipelines, control flow, adjust and control the parameters (temperature, pressure and flow) of the conveying medium.   Basic terminology 1. Strength performance   The strength performance of the ...

1. What is the nominal pressure PN (MPa)?The reference value related to the pressure resistance of the piping system component refers to the design given pressure in relation to the mechanical strength of the piping component.The nominal pressure is ...

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Under normal circumstances, if it is not tightly closed, first confirm whether the valve is closed in place. If it is closed in place, there is still leakage and cannot be sealed, then check the sealing surface. Some valves have detachable seals, so ...

Under normal circumstances, if the situation is not strict, first confirm whether the valve is closed or not. If it is closed and there is still leak and can not be sealed, then check the sealing surface. Some valve seals are detachable, so take them...

1. Analysis of the causes of cracking of injection molded products Cracking, including filament cracks on the surface of the part, microcracking, whitening, cracking, and damage due to the sticking of the part, the sticking of the flow path, or the t...

1. Analysis of the causes of cracking of injection molded products Cracking, including filamentous cracks, microcracks, whitening, cracking, and trauma crisis caused by the sticking of the workpiece and the runner sticking on the surface of the part,...

NPT is a general-purpose American standard tapered pipe thread with a profile angle of 60°. The PT thread is an inch taper thread with a tooth profile angle of 55°. The most commonly used inch pipe thread in sealing is a fine thread. Because the coa...

NPT is a general purpose American standard taper pipe thread with a tooth angle of 60°.The PT tooth is an inch taper thread with a tooth angle of 55°.Inch pipe threads are fine-toothed threads because of the large depth of the teeth of the coarse thr...

PPH tube is β-modified for ordinary PP material, so that it has a uniform and fine β crystal structure, and has excellent chemical resistance, abrasion resistance, high temperature resistance, corrosion resistance, aging resistance and good insulati...

The PPH tube is β-modified for ordinary PP material, so that it has a uniform and fine β crystal structure, and has excellent chemical corrosion resistance, wear resistance, high temperature resistance, corrosion resistance, anti-aging and good insu...