152072 ⎘
Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Plug valves; with plugs having conical surfaces; Packings therefor Packings
Sub-classes:Variable cylinder wall for seals on plug valve
#2Arrangement for conducting, treating and/or measuring a fluid
#3HYDRAULIC CONNECTION HAVING A FLEXIBLE PORT MOUTH AND METHOD FOR CONNECTING SAME
#4Method and system of valve refurbishment