Contact Us

Ningbo Lianda Plastic Pipe Co.,Ltd

Address: Ningbo Lianda Plastic Pipe Co.,Ltd, Wengfang Village, Hemudu Town

Tel: +86-0574-62952153

Fax: +86-0574-62952135

Mobile: +8615905846680

Email:customerservice@ldpipes.com

Home > Knowledge > Content

Double valve operating principle

Ningbo Lianda Plastic Pipe Co.,Ltd | Updated: Feb 03, 2016

When the inner tube water injection and plug to stay in the open position, to a large number of exhaust, when the air is exhausted, the water valve, floating ball is floating, drive plugs to the closed position, stop a lot of exhaust, when the tube internal normal transportation, such as gather a small amount of air in the valve to a considerable extent, decreased the water level inside the valve, floating ball decreases, when the air from the eyelet discharge, when the pump stop, inner tube air and water or in case of tube negative pressure is generated, this time plug quick opening, inhaled air to ensure pipeline is entirely.