Yida Optimizes Pump Inlet & Outlet Flange Reinforcement to Eliminate Joint Leakage Under Long-Term Pipeline Thermal Expansion and Contraction

Circulating hot chemical liquid, alternating cold and hot workshop environment will make metal pipelines produce regular expansion and contraction displacement. The continuous alternating stress acts on the flange joint between pump body and pipeline, gradually loosening bolt fastening force and compressing deformation of ordinary sealing gaskets. Once leakage occurs at the flange position, corrosive fluid will corrode peripheral pipeline supports and workshop ground, bringing hidden safety troubles to global chemical and surface treatment factories.

Yida thickens the flange connection surface of all pump models and adds annular positioning bosses on the sealing surface to limit lateral displacement of gaskets during pipeline thermal deformation. High resilience fluorine-containing composite gaskets are used for flange matching to maintain stable compression sealing performance after multiple thermal cycles. The factory provides standardized bolt torque reference values in English manuals for construction personnel to implement uniform fastening force during installation. Flange pressure tightness inspection is included in the factory finished product test items to verify sealing performance under pressure change conditions.

The upgraded flange sealing structure solves the common leakage problem at pipeline joints caused by temperature changes, cuts regular tightening maintenance work for global pipeline management teams, and maintains the overall sealing integrity of the whole corrosive fluid delivery network.