BNSV Combined air vent valve
Overview
The combined air release valve has the dual functions of large amount of air intake, exhaust and continuous micro exhaust. It has the advantages of large displacement, stable performance, safety and reliability, and is widely used in municipal water supply and long-distance water conveyance projects.
● Large intake and exhaust volume. Full diameter streamline flow passage design ensures strong intake and exhaust capacity.
● High air closing pressure. The air closing pressure shall not be less than 0.1MPa.
● Good sealing effect. With the combination of soft and hard sealing structure and self sealing principle, the valve has achieved zero leakage in the whole stage from 0.02MPa to nominal pressure.
● Large air displacement under pressure. Micro exhaust valve adopts lever type structure, which greatly improves the exhaust capacity of micro exhaust valve under pressure.
● The structure is simple and reliable. The structure of free floating ball has few internal components, reliable structure and few faults.
● Anti frost cracking. It is especially suitable for use in northern cold areas.
● Online detection is convenient. With detection mechanism, it can easily judge whether the valve is faulty.
No. | Parts | Material |
1 | Body、Bonnet、Gland | DI QT450-10、WCB |
2 | Floating ball | Stainless steel 06Cr19Ni10、06Cr17Ni12Mo2 |
3 | Seal ring | EPDM、NBR |
4 | Dust-proof net | Stainless steel 06Cr19Ni10 |
