Electric two-way sealed butterfly valve for large diameter expansion pipe

• Main Author: ZHUHUA JI
• Format: Patent
• Language: English
• Published: 04.05.2005
• Edition: 7
• Subjects: 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

The invention relates to a dynamoelectric two way sealed butterfly valve of the wide bore drawtube, which is featured by reasonable structure, reliability, compact installation between the axis and the valve plate, reliable opening and closing and the function of two way sealing, is not affected by...