Ellipsoidal head

1)Material: verious material are available
2)Standard: ISO9001-2008,GB/T25198-2010
3) welcome OEM service
4)license:A3

91)Material: verious material are available
2)Standard: ISO9001-2008,GB/T25198-2010

3) welcome OEM service
4)license:A3Features

 

1.DN: 159mm-6000mm

2.Non-destructive: RT UT

3.high quality and competitive price

4.we manufacture grade of A3 heads

5.forming methods: pressing, spinning.

6.specification(about size and wall thickness): according to client's requirements.

7our company can provide drawings in accordance with processing.

8.head's gradient as follows:

DN

 straight edge

 gradient

 tolerance of total   depth(height)

DN≤2000mm

 h=25

 outer:1.5inner:1.0

 (-0.2~+0.6)%DN

DN≥2000mm

  h=40

 outer:2.5 inner:1.5

 (-0.2~+0.6)%DN

 others

 

 outer:6%h &≤5   

inner:4%h &≤3

 (-0.2~+0.6)%DN

 

 9.tolerance of groove angle and groove dimension, groove surface roughness as follows:

items	tolerance
groove angle	±2.5°
groove dimension	±1mm
groove surface roughness	≤25, no cracks ,delamination, inclusions and other defects