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Hydraulic Control Line
ASME SA789 S32750 Stainless Steel Coiled Hydraulic Control Line Tubing
Meilong is a supplier of welded and redrawn, seamless and redrawn coiled hydraulic control line tubing which are made from corrosion-resistant duplex stainless steel S32750, ASME SA789. We have been specializing in manufacturing coiled tubing used in the oil and gas industry.
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.
Meilong is a supplier of welded and redrawn, seamless and redrawn coiled control line tubing which are made from corrosion-resistant austenitic stainless steel S32750, ASME SA789. We have been specializing in manufacturing coiled tubing used in the oil and gas industry.
ASME SA789 S32750 Coiled Tubing for Hydraulic 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.
Thanks to the experience and expertise gained in the production and inspection, the tubes supplied by Meilong fully meet stringent quality requirements of the oil & gas industries. The tubing deployed in the umbilicals used in aggressive subsea and downhole conditions.
ASME SA789 S32750 Coiled Tubing for Chemical Injection
One of the main challenges in the upstream processes of the oil and gas industry is to protect pipeline and process equipment against waxes, scaling and asphalthane deposits. The engineering disciplines involved in flow assurance play an essential part in mapping the requirements that reduce or prevent loss of production due to pipeline or process equipment blockage. Steel tubing from Meilong is applied to umbilicals and chemical injection systems play an effective role in chemical storage and delivery at an optimizing flow assurance.
Our tubing is characterized with integrity and quality to be specially used in subsea conditions in the industries of oil and gas extraction.
Available Alloy Grades for Hydraulic Control Line Tubing
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Austenitic: |
S31603/316L |
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Duplex: |
S31803/S32205 S32750 |
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Nickel alloy: |
N08825 N06625 |
ASME SA789 S32750 Stainless Steel Hydraulic Control Line Tubing Features
Close dimensional tolerances
Enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity
ASME SA789 S32750 Stainless Steel Hydraulic Control Line Tube Norms
ASTM A789 / ASME SA789
EN10216-5
ASME SA789 S32750 Coiled Hydraulic Control Line Tubing Process
TIG welded and cold drawn
Seamless and cold drawn
ASME SA789 S32750 Coiled Tubing Dimension
Outside Diameter: 1/8’’ – 1/2’’ (3.175 mm – 12.7 mm)
Coiled tubing length: up to 32,808 feet (10,000 m)
Tubing with minimum orbital welds reduces the risk of leakages when connecting tubes, and suitable for delivery for customers need.
Single coiled tubing is available
The tubes are delivered with plastic caps for protection from potential contamination during storage.
Delivery condition
Cold worked
Bright annealed
Annealed and polished
Packing
Coiled tubing is level wound on the spool/reel
metal reels and marking can be specified by the customer
Application
Control line
Chemical injection line
Electrical line
Multi-line flat pack
Hydraulic line
Tubing encapsulated conductor
Intelligent well completions
Capillary tubing
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