BUTTERFLY TYPE PRESSURE CONTROL VALVE

To provide a butterfly type pressure control valve which is disposed at an exhaust side of a vacuum chamber of a vacuum treatment device, heats a flapper and a periphery of the flapper with a heater to prevent adhesion of products, enables a high speed opening/closing operation while achieving reduc...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	IWABUCHI TOSHIAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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