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High pressure reducing fitting
High pressure reducing fitting

High pressure reducing fitting

High pressure reducing pipe is one of the chemical pipe fittings, also known as large and small head, used for ...
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High pressure reducing pipe is one of the chemical pipe fittings, also known as large and small head, used for the connection of two different pipe diameters.

Reducing pipe standard: national standard, American standard, British standard and various non-standard high-pressure stamping.

Standard: GD87/GD2000 gb GB12459 ASTM B16.9

Standards for flanges and tube plates of pressure vessels of GD0506~0507 of electric power department: JB/T4700~4707-2000 standard (GB/ t9112-2000), standards of machinery department (jb81-59, JB/ t74-94), standards of petrochemical department (sh3406-96), standards of chemical department (hg5010-58, hg20592-97), etc. Forged steel flanges for export meet ASTM.A105 standard in the United States

High pressure reducer classification

1. Divided by material:

Carbon steel: ASTM/ASME A234 WPB, WPC

Alloys: ASTM/ASME A234 WP 1-wp 12-wp 11-wp 5-wp 91-wp911, 15Mo3 15CrMoV, 35CrMoV

Stainless steel :ASTM/ASME A403 WP 304-304l-304h-304ln-304n

ASTM/ASME A403 WP 316-316 l - 316 - h - 316 ln - 316 - n - 316 ti

ASTM/ASME A403 WP 347-347h

Low temperature steel :ASTM/ASME A402 wpl3-wpl 6

High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon brick, PVC, PPR, RFPP, etc.

2. Manufacturing methods can be divided into pushing, pressing, forging, casting, etc.

3. Manufacturing standards can be divided into national standards, electrical standards, ship standards, chemical standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc.

4. According to its radius of curvature: can be divided into long radius elbow and short radius elbow. Long radius elbow means that its radius of curvature is 1.5 times the outer diameter of the pipe, i.e., R=1.5D; Short radius elbow means that its radius of curvature is equal to the outside diameter of the pipe, i.e. R= 1.0d. (D is elbow diameter, R is radius of curvature). 5. According to the pressure level, there are about 17 kinds of pipes, which are the same with the American pipe standards, including: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; STD and XS are commonly used.