Recently, Russian clients have continuously visited Qingdao Huashida Machinery Co., Ltd. for on-site inspections, focusing on introducing the company’s self-developed high-end intelligent one-step PERT/PEXA flexible Pre-insulated pipe production lines.
Huashida’s one-step PERT/PEXA flexible Pre-insulated pipe production line adopts the pioneering core technology of flow-coating Pre-insulated flow-guiding sizing, paired with a well-engineered three-point positioning system consisting of extrusion die head, sizing unit and hydraulic deviation corrector. Its overall technology has reached an internationally advanced level. While boosting comprehensive production efficiency by 20%–50%, cutting energy consumption by 15%–25% and slashing labor input by 40%, the equipment delivers outstanding cost performance and processing performance.
Huashida’s cooperation with Russian clients on one-step PERT/PEXA flexible Pre-insulated pipe equipment dates back two decades. At that time, a client based in Smolensk, Russia, faced the demand for community heating pipeline construction and automated management system upgrades under extreme cold climates. They urgently required pipe manufacturing equipment capable of producing pipes that facilitate easy installation without generating debris during construction. After extensive comparative surveys, they ultimately selected Huashida’s one-step PERT/PEXA flexible Pre-insulated pipe production line.
For a long time, high-end continuous composite forming equipment for flexible Pre-insulated pipes was mainly supplied by European and American manufacturers. Restricted by the global supply chain landscape, local Russian manufacturers mostly adopted the conventional two-step process. This traditional process features cumbersome and lengthy working procedures, low production efficiency and high energy consumption. In addition, the Pre-insulated layer is prone to eccentric unevenness, resulting in poor product consistency. It fails to meet the urgent demand for high-quality pipes amid the expansion of central heating projects, forming a critical gap to be filled in the plastics machinery sector.
Since Russian clients introduced Huashida’s one-step PERT/PEXA flexible Pre-insulated pipe production lines, over 20 years of field operation verification has proven the equipment’s reliability. Equipped with precise pipe temperature control, the system completes dynamic three-dimensional positioning before foaming under the flow-coating Pre-insulated flow-guiding sizing process, ensuring centered pipe forming with dimensional deviations fully compliant with national standards and thoroughly resolving pipe eccentricity issues.
The PERT/PEXA Pre-insulated pipes manufactured by this equipment feature outstanding merits including high temperature and pressure resistance, superior Pre-insulated performance, long anti-corrosion service life, cost-effectiveness, environmental friendliness and convenient construction. They are widely recognized by project owners engaged in municipal heating, industrial fluid conveyance and building hot water supply sectors. For these reasons, the production line keeps attracting Russian clients for factory inspections and procurement.
