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Plastic-jacketed steel pre-insulated direct-buried pipe takes steel pipe as core, prefabricated integrally with polyurethane insulation layer and HDPE outer sheath. It features excellent heat preservation, waterproof and anti-corrosion performance with low heat loss. Direct burial saves construction space, delivers tight sealing and strong compression resistance. Anti-aging and long-lasting, it is widely applied in urban central heating, residential heating and industrial heat transmission pipelines.

elbow; tee; reducer; cap; flange; flange

XR-SG90 PSW Rolling Mill (hereafter called rolling mill) is the most important pieceofequipment for casting & rolling process copper tube production. The main motor drivesthemain shaft and the second motor drives the planetary shaft and drives to the rolls. Therolledtube can be kept not rotating by adjustment of the speed of the second motor, whichmakesitpossible to produce super long tube for on line recoiling. The feeding material for the rolling mill is the shell tube. The rolling temperaturecanreachto701℃~850℃ during the rolling due to the high reduction (elongation is 12-16times) at fastreduction speed. Then good recrystalization will happen after the rolling by thewater coolingapplied to the tube, which makes the rolled tube good draw capability, small toleranceontube wall thickness.

The company is committed to providing full lifecycle solutions from design and manufacturing to after-sales service. 1.Turnkey Production Line Solutions Provide integrated solutions from project planning and process design to complete production line delivery, meeting various capacity and product requirements. 2.Equipment Design and Manufacturing Customize high-frequency welded pipe equipment based on client needs, including forming mills, welding systems, sizing units, and auxiliary equipment. 3.Installation and Commissioning Provide on-site installation guidance and commissioning services to ensure smooth start-up and achievement of designed performance. 4.Technical Training Offer comprehensive training for operators and maintenance staff to improve efficiency and equipment management. 5.After-sales Service and Technical Support Provide long-term technical support, remote assistance, and on-site service to ensure stable operation and quick response. 6.Spare Parts Supply Supply original spare parts and consumables to ensure continuous and stable operation while reducing downtime. 7.Equipment Upgrade and Retrofit Upgrade and retrofit existing production lines to enhance automation level and production efficiency.

FFX Technology Features: (1) lt can save 60% cost on rollers. (2) One set of Roller can be common used to product all the Round Pipe Range at breakdown section. And the Roller in breakdown section needn't be changed, and the position of Rollers adjusted Automatically; (3) Cut down the Size Changing Time. (4) Greatly reduce the intensity of labor. (5) It is convenient to restore and adjust roller.

Features： 1.High Speed: Running speed can be reach 150m/min 2.Quick Change System: Small diameter tube mill adopts complete fast change structure, greatly reduce the time of roller changing. Large diameter pipe mill adopts exclusive quick change system. 3.High Precision: Ovality of pipe can be reached to±0.03mm, which is used to produce high precision pipe, such as cylinder tube, transmission shaft tube, etc.

1. Scope of application. Mainly used for straight seam welding of stainless steel pipes for decorative products and furniture. Second, the technical characteristics. 1. Fast welding speed and high productivity. 2. The ripple of the high-frequency welding machine is less than 1%, the welding seam is beautiful and the quality is stable. 3. Equipment configuration. Switch rectifier cabinet and inverter output cabinet, choose split machine or all-in-one machine. 4. Specifications and models. Power level: 30kW - 2000kW.

Applicable Processes Heat Treatment: Quenching and tempering (quenching + tempering) for seamless pipes, normalizing, annealing, solution treatment (for boiler pipes, hydraulic pipes, and oil casing pipes) Hot Forming: Tube expansion, bending, tube end upsetting, thickening, pre-heating before hot extrusion Pre-welding heating, weld stress relief, local surface hardening Compatibility: Carbon steel, 20G boiler pipes, stainless steel, alloy thick-walled pipes