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PVDF Encapsulated 304 Stainless Steel Capillary Tube Nickel Alloy

Categories Encapsulated Control Line
Brand Name: Meilong Tube
Model Number: 3 / 8 '' OD x 0.065 '' WT
Certification: ISO9001 : 2015
Place of Origin: China
MOQ: 1000 meters
Payment Terms: L/C, T/T
Supply Ability: 100 metric tons per month (including duplex steel tubing, nickel alloy tubing)
Delivery Time: 7 days
Packaging Details: Level wound coiled on spools/drums, and packed in wooden cases
Alloy: Incoloy 825, UNS N08825
Surface: Clean and bright
Condition: Annealed
Properties: Enhanced tensile and yield
Feature: High pressure tubing
Application: Down hole hydraulic control in oil and gas wells
Standard: ASTM B704
Size: Tight dimensional tolerances
Application Standard: NACE MR0175 / ISO15156
Test: 100% length is hydraulic tested
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PVDF Encapsulated 304 Stainless Steel Capillary Tube Nickel Alloy

PVDF Encapsulated Control Line Nickel Alloy Incoloy 825 Capillary Tubing


Meilong Tube manufactures either welded or seamless hydraulic control lines for subsurface applications. Hydraulic control line is available in mainly five materials, varying wall thicknesses, and a wide range of working pressure ratings. The line is supplied on spools to exact length requirements. Upon request, it is pressure tested hydraulically, purged with nitrogen gas, or clean oil liquid, and sealed on both ends prior to shipping.


Welded hydraulic control line is floating plug drawn to ASTM specifications and is available in any length. Material types for hydraulic control lines include stainless steel TP316L which is suitable for sweet to moderately corrosive environments, Duplex stainless steel 2205, Super Duplex stainless steel 2507, nickel alloy Incoloy 825 and Inconel 625 are suitable for severely corrosive environments and high working pressures and temperatures. Control system fluids must be compatible with the environments and operating temperatures of the control line.


Control line encapsulation also is available, where requested, to provide additional crush and abrasion resistance during installation. The encapsulation material should be matched for compatibility with well fluids and temperature requirements.


Encapsulated Control Line


MEILONG offers the encapsulation of control lines to provide increased durability, as well as chemical and corrosion resistance to meet each project’s specialized requirements, we offer different encapsulation types, such as: HDPE (High Density Polyethylene), Santoprene, PVC (Polyvinyl Chloride), Haylar and PVDF (Polyvinylidene Fluoride).


Flatpacks are commonly used when several different lines are terminated at approximately the same depth in the well.

Common applications include intelligent well systems, deep-set chemical injection lines with downhole gauge cable and safety valve lines with shallow set chemical injection lines. For some applications bumper bars are also encapsulated into the flatpack to provide additional crush resistance.


Standard & Approvals


Control Lines are manufactured according to applicable ASTM standards for each specific material.

Tubes can be supplied flushed, filled, and filtered per client requirements and to the appropriate NAS/SAE standards.


Quality & Testing


- Manufactured in accordance with Standard Inspection and Quality Plans


Design & Construction


- Encapsulation for single line

- Encapsulation profiles to suit customer application

- Custom Line Marking

- Full range of application materials


Encapsulation Materials


- PP (Polypropylene) /TPR (Santoprene) / PA

(Nylon) / PVDF / ETFE (Tefzel) / ECTFE (Halar)

FEP / PFA / ECA 3000


Features of Encapsulated Control Line


Maximize protection of downhole line

Increase crush resistance during installation

Protect control line against abrasion and pinching

Eliminate long term stress corrosion failure of control line

Improve clamping profile

Single or multiple encapsulation for ease of running and added protection


Available Alloy Grades for Control Line Tubing Inside Encapsulation


Austenitic:316L
Duplex:

S31803/S32205

S32750

Nickel alloy:

N08825

N06625


Chemical Composition of Incoloy 825


NickelChromiumIronMolybdenumCarbonManganeseSiliconSulfurAluminumTitaniumCopper
%%%%%%%%%%%
min.max.max.max.max.max.
38.0-46.019.5-23.522.02.5-3.50.051.00.50.030.20.6-1.21.5-3.0

Norm Equivalence


GradeUNS NoEuro norm
NoName
AlloyASTM/ASMEEN10216-5EN10216-5
825N088252.4858NiCr21Mo

Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.


Characteristics


Excellent resistance to reducing and oxidizing acids

Good resistance to stress-corrosion cracking

Satisfactory resistance to localized attack like pitting and crevice corrosion

Very resistant to sulfuric and phosphoric acids

Good mechanical properties at both room and elevated temperatures up to approximately 1020° F

Permission for pressure-vessel use at wall temperatures up to 800°F


Standard Encapsulation Profiles


Round, Single LineItemStandard Dimensions
1/8’’ OD Line0.250’’ (6.35 mm) Dia.
1/4’’ OD Line0.433’’ (11.0 mm) Dia.
3/8’’ OD Line0.535’’ (13.6 mm) Dia.
1/2’’ OD Line0.660’’ (16.8 mm) Dia.

Square, Single LineItemStandard Dimensions
1/8’’ OD Line0.250’’ x 0.250’’ (6.35 mm x 6.35 mm)
1/4’’ OD Line0.433’’ x 0.433’’ (11.0 mm x 11.0 mm)
3/8’’ OD Line0.535’’ x 0.535’’ (13.6 mm x 13.6 mm)
1/2’’ OD Line0.660’’ x 0.660’’ (16.8 mm x 16.8 mm)

Rectangular, 2 LinesItemStandard Dimensions
1/4’’ OD Line

Width: 0.710’’ (18.0 mm)

Height: 0.410’’ (10.4 mm)


Rectangular, 3 LinesItemStandard Dimensions
1/4’’ OD Line

Width: 0.990’’ (25.1 mm)

Height: 0.410’’ (10.4 mm)


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