victaulic groove tech.

[Katyona]

Помогите, please, что такое victaulic groove. Контекст следующий: чертеж центробежного дегазатора, на нем надпись Mud outlet 6 pipe, SCH 80, victaulic groove
Заранее спасибо

[su]

Victaulic coupling - A development in which a groove is cut around each end of pipe instead of the usual threads; two ends of pipe are then lined up and a rubber ring is fitted around the joint; two semicircular bands, forming a sleeve, are placed around the ring and are drawn together with two bolts, which have a ridge on both edges to fit into the groove of the pipe; as the bolts are tightened, the rubber ring is compressed, making a watertight joint, while the ridges fitting in the grooves make it strong mechanically

паз соединителя Victaulic (фирма такой)

[tumanov]

http://www.garitec.com/victaulic/frame_Vic-pprep-idx.htm
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The concept of cold forming (rolling) a groove without metal removal into pipe was developed by Victaulic in 1955. The concept was first used for light-wall pipe with insufficient wall thickness to permit cut grooving. Developments now permit roll grooving of standard weight steel pipe, from 26.7 to 1066.8 mm.
Victaulic Vic-Easy roll grooving tools are all designed to rotate the pipe as an upper roll is impressed into the pipe.
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