Check valve for bypass excessive pressure from the annulus. It is welded into the intersection of the oil and gas lines during tree installation. The valve is flushed with a stream of produced liquid which prevents the valve from freezing at low temperatures. The valve design allows adjustment to the required pressure drop (up to 0.3 MPa) without disassembly in the operating mode.
Nominal inside diameter, mm
65
Operating pressure, MPa
21
Bypass pressure, MPa
from 0.03 to 0.3
Pipeline connection for welding
89x11
Fluid temperature,
ºC
< 100
Valve material
corrosion-resistant steel
Fluid type
process water, natural gas, petroleum products
Overall dimensions, mm
- length
282
- Width
114
- Height
210
Weight, kg
11.7