ASME SA789 alloy 2205 Coiled Capillary Tubing for Control Lines
A direct hydraulic control umbilical provides direct hydraulic control of each valve on a subsea christmas tree, through a bundle of tubes from the topsides hydraulic power unit (HPU) to the subsea tree. No electrical power or signal is required. Actuation of valves is by the supply of hydraulic power to the relevant tube. This is accomplished by opening the relevant valve on the manifold located on the topsided HPU. This type of umbilical is limited to subsea production systems with short offsets to the host and few trees.
Available Alloy Grades for Coiled Capillary Tubing
Austenitic:
S31603/316L/Alloy 316L
2205 capillary coiled tubing
Duplex:
S31803/S32205/Duplex 2205/Alloy 2205
S32750/Duplex 2507/Alloy 2507
Nickel alloy:
N08825/Alloy 825
N06625/Alloy 625
2205 capillary coiled tubing
Alloy 2205 Duplex Stainless Steel Capillary Tubing Features
Close dimensional tolerances
Enhanced mechanical properties
Superior surface finish
2205 capillary coiled tubing
High cleanness of inside surface
Controlled ovality, eccentricity
Alloy 2205 Duplex Stainless Steel Tube Norms
ASTM A789 / ASME SA789
ASTM A632 / ASME SA632
EN10216-5
Coiled Capillary Tubing Process
TIG welded and cold drawn
Seamless and cold drawn
Post time: Jan-06-2024