BackgroundOur client is a refining plant, due to the unrigorous flange joint assembly of the hydrogenation reactor, the flange warping deformation under high temperature, high pressure operation, The effective load of the bolts was large, leading to long-term leakage of the flange. Flange codePressu Read More

Background Usually in the refining chemical plants,the tighting of the heat exchanger pipe flange, as well as restricted space flange, use the air cannons or sledgehammer, the advantages are high speed and labor costs saving, the disadvantage is that the bolt payload is not controllable, the flange Read More

BackgroundThe high-pressure heat exchanger pipe flange of the residual oil hydrogenation device in a refining plant, were installed by two synchronous precess, there was no standard installation specification, resulting in flange leakage in the operation of the temperature and pressure fluctuations, Read More