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Frost proof valve device for public water supply network, has driving unit with bypass line that connects vertical and horizontal sections of connecting channel which join inflow and discharge openings
Frost proof valve device for public water supply network, has driving unit with bypass line that connects vertical and horizontal sections of connecting channel which join inflow and discharge openings
A valve device has a connecting channel (30) that joins an inflow opening (10) and a discharge opening (20). An actuating mechanism (50) drives a main valve (40) that regulates flow of fluid through the connecting channel. A driving unit (70) has a bypass line that connects vertical and horizontal sections (31,32) of the connecting channel.
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