Purpose :
Swing check valves with hydraulic damper PN 2,5 / 10 / 16 / 80 are used to prevent medium backward flow in general-purpose pipelines.
|
Nominal pressure, bar |
2,5, 10, 16, 80 |
| Operating medium |
I – water, pulp; II – water (technical water as well); III – water, steam, oil, liquid petrochemicals neutral to main part materials |
| Max leakage |
According to GOST 13252 |
| Connection to pipeline |
By welding, flanged according to GOST 12815 |
|
Operating medium flow |
Under disk (as indicated by the arrow on the valve body) |
| Drive type |
Automatic |
| Applied standards |
ТУ У 29.1-05744691-020:2007 |
| Ambient class |
У, ХЛ, УХЛ according to GOST 15150 |
| Installation position |
On horizontal pipe horizontal pivot axis. On slopping pipe – axis angle of gradient is no more than 15º, with inlet connection end down, pivot axis is horizontal. |
Valves with specific customer requirements can be manufactured provided that stated requirements are compatible with the applicable operating standards.
MAIN PARTS MATERIAL
| Arrangement А | Arrangement Б | |
| Body |
Steel 20 |
Steel 20 |
| Disk | Steel 20 | Steel 20 |
| Axis | Steel 20Х13 | Steel 20Х13 |
| Bushing | Bronze | Bronze |
| Hard facing | ЦН-6Л | ЦН-6Л |
| Shaft packing | Graphite packing | Graphite packing |
| Disk packing | Metal - metal |
Metal-rubber |
