Purpose :
Lift check valves PN 63 / 100 / 160 are used to prevent medium backward flow in pipelines.
|
Nominal pressure, bar |
63, 100, 160 |
| Operating medium |
I – water; II – water-steam; III – liquid and gas hydrocarbons, oil, petrochemicals, natural gas, water, steam, air and other liquids and gases with corrosion ratio of body parts material no more than 0,2 mm/year |
| Operating medium temperature |
No more than +450°С |
| Max leakage |
According to GOST 13252, «С» class can be according to GOST 9544 |
| Connection to pipeline |
By welding |
|
Operating medium flow |
As indicated by the arrow on the valve body |
| Valve drive |
Automatic |
| Applied standards |
ТУ У 29.1-33704680-010:2011 |
| Ambient class |
У1, У3 according to GOST 15150 |
| Installation position |
On horizontal pipe the bonnet is up; neck deflection from vertical axis is no more than 5°. |
Valves with specific customer requirements can be manufactured provided that stated requirements are compatible with the applicable operating standards.
MAIN PARTS MATERIAL
| Body |
Steel 20, 20Л, 25, 25Л, 20ГС, 09Г2С, 08Х18Н10Т, 12Х18Н10Т |
| Bonnet | Steel 20, 25, 08Х18Н10Т, 12Х18Н10Т |
| Bonnet bushing | Steel 08Х18Н10Т |
| Hard facing | ЦН-6Л |
| Valve disk | Steel 20Х13 |
