INSERT PIPE SLEEVE
The goods are processed, shipped, or sold by pipelines in the particular manufacturing sector and a median range of 40-45 feet is the total length of the manufacturing pipes. These individual pipes need to be wired to stretch a considerable distance from end to end. The most common method of joining the two separate pipes could be by welding their ends together. The welding can trigger a number of pipe safety issues. Second, the heat produced during the welding process eliminates the polymer coating on the steel joints. This exposes the pipe ‘s surface to corrosion, and the erosive chemicals flowing into the pipe. This exposes the pipe’s surface to corrosion, and the erosive chemicals flowing into the pipe. The weld itself may actually be contaminated by the gases, or the pipes move through the fluids. Hence it is necessary to distinguish the girth weld portion of the pipelines from the corrosive fluid. So using insert sleeve is the only way to secure the welded portion of the pipe girth.
WHAT IS INSERT SLEEVE?
The Insert Sleeve is an innovative tool that is slowly used to prevent damage at exterior field welds. The Insert Sleeve is designed to protect from corrosion the welded portion of the girth and also to have 100 percent external coated piping. Insert sleeve are used for welded tubing, and for metal fittings, individually painted parts. That provides a protective surface cover throughout the welding process, guaranteeing the durability of the pipe’s polymer coating and preventing corrosion spots at the joints from forming. The Insert Sleeve ranges from 2 “NB to 72” NB and can be covered both internally and externally with all manner of liquid and powder covers used in processing.
ADVANTAGES OF INSERT SLEEVE
- Lightweight, and quick to mount
- The attachment mechanism acts as an internal line-up lock since the weld gap is closed automatically
- Welding time is comparable to uncoated welding pipe
SIZE
Reli Sleeve™ can be manufactured for OD & N.B. sizes starting from 2” to 72”.
FEATURES OF INSERT SLEEVES
- Girth Weld Safety-Detach 1-2 from the welding groove Burn-back to protect the steel substratum.
- Environmental accommodation-Container-suitable corrosive atmosphere processing.
- Improving the flow-smooth top and tapered ends leads to increased flow and reduced turbulence.
- Safe anchor- The mounting is firmly attached to the pipe when the recessed metal backing ring of the mounting is connected during the welding process with the two ends of the pipe with tabs or pins.
- Any solvent and powder can be used for decoration.
APPLICATIONS OF INSERT SLEEVES
Insert Pipe Sleeves are found in many various industries and applications. Below are only a few of them listed.
- Applicable to pipelines onshore, in the coastal, commercial and chemical.
- Keeps an I.D. Coating during building, from spattering dangerous weld.
- Suitable in API 5L, ASME, ASTM material such as carbon steel and stainless steel for all forms and degrees of tubing.
- No specially qualified welder required with a normal welding technique is installed.
- Isolates the welded girth section with an I.D of 100 per cent. Sealed off tube.
- Upon construction it is part of the completed tube, providing the same lasting protection from corrosion as the carrier tubing.
- Gas refinery
- Desalination pipeline system
- Jet fuel in tube
- Gas injection pipeline
- Health at firewater pipeline
- Gas refineries
- Petrochemical Plants
- Tunnel Underwater
- Onshore Dock
- Spools and Accessories
SPECIFICATIONS & STANDARDS
- API: American Petroleum Institute
- API 5L – Specification for Line Pipe
- API 1104/ANSI 1331.3 – The procedure and quality of radiography examination limits of acceptability, repair and removal of defects etc.
- ASTM: American Society for Testing Materials Iron and Steel
- ASME Section IX
- SSPC: Steel Structures Painting Council
- SSPC-V1S1 – Visual standard for Abrasive blast cleaned steel
- NACE MR0175 / ISO 15156 – Materials for use in H2S containing Environment in oil and gas production
- NACE SP 0188 – Discontinuity (Holiday) Testing of Protective Coatings
- NACE No. 1 / SSPC-SP5 – White Metal Blasting
- NACE TM 0186 – Holiday Detection of Internal Tubular Coatings of 10-30 Mils Dry Film Thickness
- NACE TM 0384 – Holiday Detection of Internal Tubular Coatings of Less Than 10 Mils Dry Film Thickness
- NACE: National Association of Corrosion Engineers.
MATERIAL USED FOR PIPE SLEEVE
Pipe / Plate
- API 5L PSL 1 & PSL 2 (Gr B to X80)
- ASTM A53 / ASTM A106 / ASTM A333
- ASTM A36 / ASTM A516 Gr 60, Gr 65, Gr 70
- ASTM A671 / ASTM A672 / ASTM A691
- ASTM A312 / ASTM A358
COATING
Insert sleeve are coated 100% internally & externally with liquid or powder coatings. Insert sleeves can be coated depending upon the material flowing through the pipeline. Some of the most common coatings used for pipeline coatings are:-
3M Scotchkote XC 6171
KCC-IC-4888
Jotun Jotapipe AC 1003
Akzonobel Corvel 10-6051
Akzonobel Corvel – 10-8158
Hempel Hempadur 85671
Hempel Hempadur 45881
Hempel Hempadur Multi-Strength GF 35870
Hempel Hempadur Multi-Strength 35530
Carboline Plasite 7159
Enviroline 405HT
RECOMMENDED INSTALLATION PROCEDURE FOR INSERT SLEEVES
- The pipe’s checking status begins to ensure there is no damage. Wash the earth, debris and other waste that affects the plant. At temperature 60-80 °C the heat pipe ceases to remove water or moisture if any is detected. Measure the inner diameter of the shaft, to be under tolerance, at least horizontally and vertically.
- The coating on the pipe insert sleeve shall not cause any damage, corrosion or other negative defects. Ensure good quality of the sealing bands, heat-resistance tape, and other accessories.
- Upon mixing as a manufacturer ‘s recommendation, blend epoxy mastic according to mixing ratio and keep back to the epoxy pot life.
- All welding operations must be 7 to 10 inches downhill (175 to 250 mm) every minute. A weeping hole of 0.5 “to 1″(12.7 to 25.4 mm) is left to allow the exhaust of expanding gases. A weaving motion of the electrode must be produced when passing the welding tab to ensure the full melting.
- Do not start intermediate passes until the weld has cooled down to or below 120 ° C. At the start of the first filler pass, the weep hole may be closed. To complete the weld, ask for as many passes as possible and still hold the weld downhill. Both passes slags and other welding materials shall be withdrawn.
- Drive the sleeve onto one end of the pipe until the bevel end of the shaft meet the pins. The injection method shall be manually moved horizontally uniformly. Attach the next primed pipe end with epoxy to the appropriate sleeve before the pins meet the pipe’s bevel edge.
- For the welding procedures conform with chapter 9 of standard API 1104 or SAE31.1. Use the lowest applicable power levels for carrying devices. The welded framework must be well ventilated and protected against inclement weather conditions. Pipe coatings and epoxy can produce toxic gases during the welding process. The element MSDS is connected to the welding process.
- If preheating is required, heating from the outer pipe may not reach 120 ° C after the application of epoxy mastic. Mechanically connected to each end of the pipe but never to sleeve tabs and never welded or fastened to the middle of the tubing. For welding tabs purposes an additional pipe lock may be used to connect the securing ends. Reli Sleeve avails it’s products all across India and various countries abroad as well.
Contact for Pipe repaire Leak.
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Half Pipe Sleeve, Half Repair Pipe Sleeve, Pre-Stressed Metallic Sleeve.