Product name：Directly buried corrugated expansion joint
Nominal diameter: DN25~DN1200(mm)
Design pressure: 0.25~4(Mpa)
Design temperature：-12℃~450℃
Connection: welding Flange
Compensation volume: 20-200 mm
Material range: SS304 SS316 Q235B
     Directly buried corrugated expansion joints are divided into: single and two-way thermal insulation directly buried expansion joints, single and two-way sealed anti-corrosion directly buried corrugated expansion joints, single and two-way directly buried corrugated expansion joints.Expansion joint internal guide tube can be set according to the import and export water direction of its requirements of positive and negative expansion joints.The main performance of the product to absorb the pipeline axial direction caused by thermal expansion joints or contraction caused by the displacement, with a large amount of compensation thrust small corrosion-resistant corrosion resistant soil corrosion self-guided and other characteristics.
     Since its establishment in 1993, the company has been specialised in the design and production of expansion joints for heating networks, and the products are sold in more than forty countries and regions at home and abroad.Jinshan Thermal Power Plant Dalian North Thermal Power Plant, Shenyang Hunnan Economic Development Zone Heat Company, Jilin Songyuan Heating Company, Jilin Siping Heating Company, etc. will be included in our qualified suppliers.