Chinese scientists have recently designed a new system for direct quantum communication that employs a hybrid encoding of phase and timestamp quantum states, successfully achieving direct quantum communication over a dis...

The primary causes of failure in ultra-high-pressure valves are cavitation and erosion wear; however, there are numerous factors that influence cavitation and erosion, the main ones being the mechanical properties of the...

1. Before installing the butterfly valve, verify that the product specifications and the direction of flow indicated by the arrow are consistent with the operating conditions. Clean the interior of the valve thoroughly; ...

Users of large-bore globe valves in everyday applications frequently report a particular issue: when these valves are used with media subject to significant pressure differentials—such as steam or high-pressure water—the...

The PN and Class designations we commonly use are both methods of expressing pressure; the difference lies in the reference temperatures at which the pressures they represent apply. The European PN system refers to the p...

When testing newly installed piping systems, the pipes and valves must first undergo preliminary testing: two leakage tests, a 150% hydrostatic test and an N₂He (nitrogen and helium) leakage test. These tests cover not ...

What is the difference between a vent valve chamber and a sludge valve chamber? I. Their purposes differ1. Purpose of a vent valve chamber: To facilitate the opening and closing of valves on underground pipelines and con...

The corrosion resistance of stainless steel generally increases with higher chromium content. The basic principle is that when there is sufficient chromium in the steel, a very thin, dense oxide film forms on the surface...

Once winter sets in, temperatures drop rapidly and valves often freeze. If left unaddressed, this can easily lead to pipe failures. In high-risk operating conditions, it may even result in accidents. Therefore, frost pro...

1. Leakage at the connection between gate valvesFirstly, check whether the connecting bolts between the gate valves are tightened. If they are not tightened, the sealing gasket ring inside will not make full contact with...

Pressure-bearing valves in the surface facilities and equipment of the Daqing Oilfield have developed internal leaks due to wear, corrosion or other causes. As internal leaks are difficult to detect, some faulty valves h...

A pneumatic control valve uses compressed air as its power source and a pneumatic cylinder as its actuator. With the aid of accessories such as electric valve positioners, converters, solenoid valves and hold-open valves...