Rotary valve assembly with insertable valve unit

作者: Domer Scaramucci

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摘要: An improved valve assembly for use between flanges basically comprising a unit and housing unit. The is sized to slidingly fit lengthwise into the unit, includes slot in portion of outer periphery thereof accommodate inner end stem mounted such that need not be moved when being replaced. adapted cooperate with provide circumferential, secondary metal-to-metal seal therebetween.

参考文章(3)
Scaramucci Domer, Composite seat ball valve ,(1963)
Robert P Dumm, Nipple attachment to a valve body ,(1963)
Robert W Holl, Four-way ball valve ,(1964)