Fetterolf Corporation

John S Fetterolf

James W Williams, 3rd

Andrew M Ritter

An arrangement for providing access to the seal rings of a seatless high pressure valve includes an aperture in the valve body and a demountable sealed closure for the aperture. The sleeve within the valve body for transmitting the gland force to the seal rings is made in segments small enough for removal through the aperture to permit access to the seal rings. The valve seal rings may accordingly be replaced without disassembly of the major valve components including the valve plunger and gland.

High pressure valve

A line blind includes seal rings on either side of a spectacle plate interposed in a pipe, and a special camming arrangement including two cooperating sets of longitudinally directed sloping teeth circularly arranged which operate on slight rotational movement of one, while the other is held stationary, to force engagement under pressure between the seal rings and the plate.

Growing community of inventors

Royersford, PA, United States of America

John S Fetterolf