PVDF Encapsulated 316L Chemical Injection Line Tubing

Short Description:

To assure produced fluid flow and protect your production infrastructure from plugging and corrosion, you need reliable injection lines for your production chemical treatments. Chemical injection lines from Meilong Tube help enhance the efficiency of your production equipment and lines, both downhole and at surface.

Our tubing is characterized with integrity and quality to be specially used in subsea conditions in the industries of oil and gas extraction, geothermal power generation.

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Product Introduction

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. Coiled tubing from Meilong Tube is applied to umbilicals and chemical injection systems play an effective role in chemical storage and delivery at an optimizing flow assurance.

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Alloy Feature

Caustic environments

Austenitic steels are susceptible to stress corrosion cracking. This may occur at temperatures above about 60°C (140°F) if the steel is subjected to tensile stresses and at the same time comes into contact with certain solutions, particularly those containing chlorides. Such service conditions should therefore be avoided. Conditions when plants are shut down must also be considered, as the condensates which are then formed can develop conditions that lead to both stress corrosion cracking and pitting.

SS316L has a low carbon content and therefore better resistance to intergranular corrosion than steels of type SS316.

Dimensional Tolerance

ASTM A269 / ASME SA269, 316L, UNS S31603
Size OD	Tolerance OD	Tolerance WT
≤1/2’’ (≤12.7 mm)	±0.005’’ (±0.13 mm)	±15%
1/2’’<OD≤1’’ (12.7<OD≤25.4 mm)	±0.005’’ (±0.13 mm)	±10%

Meilong Standard
Size OD	Tolerance OD	Tolerance WT
≤1/2’’ (≤12.7 mm)	±0.004’’ (±0.10 mm)	±10%
1/2’’<OD≤1’’ (12.7<OD≤25.4 mm)	±0.004’’ (±0.10 mm)	±8%

Technical Datasheet

Alloy	O.D.	W.T.	Yield Strength	Tensile Strength	Elongation	Hardness	Working Pressure	Burst Pressure	Collapse Pressure
	inch	inch	Mpa	Mpa	%	HV	psi	psi	psi
			min.	min.	min.	max.	min.	min.	min.
SS316L	0.375	0.035	172	483	35	190	3,818	17,161	5,082
SS316L	0.375	0.049	172	483	35	190	5,483	24,628	6,787
SS316L	0.375	0.065	172	483	35	190	7,517	33,764	8,580
SS316L	0.375	0.083	172	483	35	190	9,749	43,777	10,357