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hebeihaihao

Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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GOST 17375 - Sharply curved bends type 3D (R ≈ 1,5 DN)


GOST 17375 – Sharply curved tangent pipe bends type 3D (R ≈ 1,5 DN).The bend intends for smooth changing the direction of the pipeline.3D (R=1,5 DN), θ=900С, second performance.

Description of goods Sharply curved steel seamless bend
Sphere of application of goods The tangent pipe bends intends for smooth changing the direction of the pipeline.
  It is used to installation of general-purpose pipelines
Compliance to the normative document GOST 17375-01
Type of goods 3D (R=1,5 DN), θ=900С, second performance
Material Carbon and low-alloy steel (steel grade 20)
Fabrication method The bend is made of seamless hot-deformed steel pipe (GOST 8732-78) by a method of hot drawing through the horn-shaped core
Method of connection to the pipeline Welding
Operation medium Water, steam, gas
Temperature of the operation medium The range of -40 to +4500С
Conditional pressure of the operation medium The range of 2,5 to 10 MPa (the range of 25 to 100 kgs/cm2)
Nomenclature (outer diameter,
mm x wall thickness, mm)
45х3,0
57х3,0
57х3,5
76х3,5
89х3,5
108х3,5
114х3,5
133х3,5
159х4,5
219х5,0
273х7,0*
273х8,0*
325х8,0*
377х10,0*
426х10,0*
530х10,0 (GOST 30753-01, type of the bend: 2D (R=DN),
θ=900С)*

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