Page 81 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Fluid Flow 65

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Weldolet';' an economical butt-weld branch con-
nection, is designed to minimize stress concen-
!rations and provide integral reinforcement.

Sweepolet
Sweepolet·"' is a contoured. integrally reinforced.
butt-weld branch connection with a low stress
intensification factor for low stresses and long
fatigue life. The attachment weld is easily ex-
amined by radiography, ultrasound and other
standard non-destructive techniques.

Insert Weldolet
Insert Weldolet"' is another contoured butt-weld
branch connection used in less critical applica-
tions. Like the Sweepolet, the attachment welds
are easily examined by radiography, ultrasound
and other standard non-destructive techniques.

Sockolet

Sockolet� utilizes the basic Weldolet design
configuration and incorporates a socket-weld
outlet.

Coupolet, fillings are designed for use in fire
protection sprinkler systems and other low
pressure piping applications.

Figure 2-10. Branch connections for welding openings into steel pipe. See Figure 2-4C for alternate welding fittings. By permission, Bonney
Forge Corp., Allentown, PA.