Box type non-negative-pressure variable frequency water supply equipment

The invention relates to box type non-negative-pressure variable frequency water supply equipment which overcomes the defect that an electromagnetic valve or an electrically operated valve must be used in the prior art. A flow double-direction conversion device of the box type non-negative-pressure...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DENG BANGWU, ZHAO GUILIANG
Format:	Patent
Sprache:	eng
Schlagworte:	FIXED CONSTRUCTIONS INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER SEWERAGE WATER SUPPLY
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