The design of the valve body can be divided into full-welded body design and split body design

All-welded body design of the tubular structure and the spherical structure, the tubular structure is a double-weld heat input welding process
, The residual stress is complicated, large axial and radial deformation. Spherical structure is a four seam stitching work
Arts and technological progress, the use of in hot forging forming around the valve body, the middle of a single weld molding to reduce the line energy input
Case, to reduce the axial and radial deformation. The split structure generally consists of the body and the left and right connector body. Connector body and
The strength of the valve body by bolts, connecting the thickness of the flange and bolt connections shall inner diameter of the valve body corresponding to the flange into the
high temperature solenoid valve
Line analog design, the strength of the connection must prevent pipe stress the connection is loose, so that the seal failure. Body
Face-to-face contact with the connector body, the gap in the middle. The seal must meet the fire safety requirements, the use of the rubber O-ring
Winding metal pad combination sealed. The material of the valve body as forging temperature-29C ° or more optional ASTM
Selection of ASTM A350 LF2 A105;-29C °. Welded body, A105 or LF2 materials of the chemical composition
The points, the carbon content of carbon equivalent, as well as sulfur, phosphorus and other elements should be otherwise special restrictions. Forging three forgings standard inspection
Income, do 100% NDT weld the coloring inspection and ultrasonic testing. Gas pipeline ball valve body
Part A105, ball A105N. Pipeline ball valve valve body is the A105, the ball 316.

two position three way valve