We have been providing total pipeline sleeve repair solutions for more than four decades now. Reli Sleeve has been manufacturing repair sleeves for the pipeline industry, be it oil, gas or waterline projects. We have a repair solution for all your needs.
Half Pipe Sleeve are ideal for maintenance as repairs can be done without shutting down the entire line. Thru-put loss can be avoided by casing the existing lines with the help of half pipe sleeve.
We manufacture half pipe sleeve of all sizes, wall thickness, and grades of steel plates which are to ASTM certifications as well as a longitudinal edge. Half-sole repair sleeves also called as spilt casting or half wrap are manufactured by customizing as per client’s specification.
Depending on the requirements of the customer, half pipe sleeve can be made from 4 available grades of steel. For instance, for leaking & non-leaking defects, pressure-rated steel sleeves are used whereas structural grade steel sleeves are used for reinforcement for a defective area. Click here for Full Encirclement Steel Sleeve.
Properties of Half Pipe Sleeve
The half pipe sleeves can be used in case of leaks, dents, corrosion, cracks & faulty girth welds. Every repair sleeve are provided with standard bevels with a backup strip
Features of Half Pipe Sleeve
The half pipe sleeve can be used for internal and external corrosion, gouges, dents, grooves, arc burns, cracks, defective girth welds, lamination and leaks. Pressure containing sleeves feature a wall thickness equal to or greater than required for the maximum allowable operating pressure or the full strength of the pipe being repaired. The half repair sleeve material is certified and the carbon equivalent will not exceed 0.45 percent. Each half-sole segment comes with one pre-crimped back-up strip. Half pipe sleeves can be used as pads or cradles for above ground piping, drain tile supports and patches (segments in 90° and 180° arcs, from 6-inches to 10 feet in length are available as specials). Each Half pipe sleeve has standard bevels with a back-up strip and material certifications. Sleeve ends are square cut.
Materials Used for Half Pipe Sleeve
ASTM specifications are followed to manufacture half repair sleeves from superior quality carbon steel plates. Structural quality carbon steel or pressure vessel quality carbon steel is used according to the usage and requirement of the client in the below-mentioned grades:
· ASTM A36
· ASTM A572 GR 42, GR 50, GR55, GR60, GR65
· ASTM A516 GR 55, GR60, GR65, GR70
· ASTM A537 CL1,CL2,CL3
· API 5L GrB, X42, X46, X52, X56, X60, X65, X70,psl1, psl2
· EN10025-s235,s275,s355,s450
In addition to these, the sleeves can also be made in any custom grade as per the client usage.
Production of Half Pipe Sleeve
Our half pipe sleeve are manufactured from the best quality carbon steel material. We pride ourselves on making the half sole by rolling, die forming and step braking and they never undergo heat treating. Thus making our expertise & technique best in the industry. If a client specifically asks for longitudinal edges of the half pipe sleeve to be beveled for welding, it can be done. Half pipe sleeves ends have shaved square edges to enable fillet welding, although square end bevel can also be made as per client specification. Our for repair sleeves are made with carbon steel plates with low carbon equivalency to ensure good weld ability.
Milling of Half Pipe Sleeve for Backing Strips
Half Pipe Sleeve can be milled on the inside longitudinal edges for the backing strips. Depth of 1/16″ (.0625) -0″ + 1/32″ and width of 5/8″ (.625) -0 + 1/16″ on each side. Outside longitudinal edges are beveled 30° (+5° – 0° ) for welding.
Backing Strips
Backing strips are hot rolled commercial carbon steel sheet and strip of commercial quality, A-569/A1011 SS GR33 in coils and cut lengths having a maximum carbon of 0.15%. 1 1/4″ wide, 16 gauge (.0598) with a tolerance of: min. .0538 – max. 0658, 10′ long, pre-crimped (10 degree total bend).
ASTM steel composition of A 569/A1011 SS GR33:
| Carbon (max) | Manganese (max) | Phosphorus (max) | Sulfur (max) | Copper (when specified) |
| 0.15 | 0.60 | 0.036 | 0.035 | 0.20 min. |
Customization of Half Pipe Sleeve
We can manufacture half pipe sleeve in any custom steel grades and of any size as per the application & requirement of the customer.
Inspection Of Half Pipe Sleeves
Every half sleeve is meticulously examined and inspected for defects before delivery. The shipment is thoroughly tested and verified for durability and stability.
Our quality experts first review the entire shipment of half pipe sleeves before we dispatch them to our clients. Parts that do not meet our strict standards are rejected and not shipped.
Mechanical Properties and Testing
Mill test reports will be furnished on all materials. Stock plate is not available with a maximum hardness guarantee. Independent testing may be performed to check the hardness on stock plate. Additional independent testing available to include: destructive, magnetic particle, liquid penetrate, ultrasonic and radiographic.
Dimensional Requirements
Longitudinal edges are beveled to 30 degrees (+5 degrees -0 degrees), with a root face (land) of 1/16″ (+-1/32″). This will be a mechanical type bevel or by plasma torch burning. Beveled ends are available upon request. Inside diameter of each Half Pipe Sleeve is fabricated to match the outside diameter of standard nominal line pipe. Half Pipe Sleeve are manufactured so that when two halves of the sleeve are placed on the pipe, their total circumference shall equal the circumference of the pipe minus a gap between the longitudinal edges on either side of 1/16″ (-1/16″+1/32″) for welding.
| Wall Thickness | Sulfur (max) | Copper (when specified) |
| 3/16″, 1/4″ plate | 2″ thru 12″ | (+0″-1/8″) |
| 3/16″, 1/4″ plate | 14″ thru 42″ | (+0″-1/4″) |
| 5/16″ plate | 6″ thru 12″ | (+0″-1/8″) |
| 5/16″ plate | 14″ thru 42″ | (+0″-3/16) |
| 3/8″ plate | 8″ thru 12″ | (+1/8″-0″) |
| 3/8″ plate | 22″ thru 42″ | (+0″-1/4″) |
| 1/2″ plate | 12″ thru 20″ | (+1/16″-1/16″) |
| 1/2″ plate | 22″ thru 42″ | (+1/8″-1/8″) |
Dimensional Requirements
Longitudinal edges are beveled to 30 degrees (+5 degrees -0 degrees), with a root face (land) of 1/16″ (+-1/32″).
Read More
Marking & Shipping of Half Pipe Sleeve
Every half sleeve pipe is marked for the size, thickness, dimension & grade of steel before shipping across India & abroad. Any half sleeve pipe not meeting the requirements for visual inspection or dimensional tolerance are rejected.
Countries We Deliver To
Countries We Deliver To
United States, Indonesia, China, Pakistan, Brazil, Nigeria, Bangladesh, Russia, Mexico, Japan, Ethiopia, Philippines, Egypt, Vietnam, Dr Congo, Germany, Turkey, Iran, Thailand, United Kingdom, France, Italy, South Africa, Tanzania, Myanmar, Kenya, South Korea, Colombia, Argentina, Spain, Uganda, Ukraine, Algeria, Sudan, Iraq, Afghanistan, Poland, Canada, Morocco, Saudi Arabia, Uzbekistan, Peru, Malaysia, Angola, Ghana, Mozambique, Yemen, Nepal, Venezuela, Madagascar, Ivory Coast, Cameroon, North Korea, Australia, Taiwan, Niger, Sri Lanka, Burkina Faso, Mali, Romania, Chile, Malawi, Kazakhstan, Zambia, Guatemala, Ecuador, Netherlands, Syria, Senegal, Cambodia, Chad, Somalia, Zimbabwe, Guinea, Rwanda, Benin, Tunisia, Belgium, Burundi, Bolivia, Cuba, Haiti, South Sudan, Dominican Republic, Czech Republic, Greece, Portugal, Jordan, Azerbaijan, Sweden, United Arab Emirates, Honduras, Belarus, Hungary, Tajikistan, Austria, Papa New Guinea, Serbia, Switzerland, Israel, Togo, Sierra Leone, Hong Kong, Laos, Paraguay, Lebanon, Bulgaria, Libya, Nicaragua, El Salvador, Kyrgyzstan, Turkmenistan, Singapore, Denmark, Finland, Slovakia, Republic of Congo, Norway, Palestine, Oman, Costa Rica, Liberia, Ireland, New Zealand, Central African Republic, Mauritania, Panama, Kuwait, Croatia, Moldova, Georgia, Eritrea, Uruguay, Bosnia And Herzegovina, Mongolia, Armenia, Jamaica, Puerto Rico, Albania, Qatar, Lithuania, Namibia, Gambia, Botswana, Gabon, Lesotho, Macedonia, Slovenia, Guinea Bissau, Latvia, Bahrain, Trinidad And Tobago, Equatorial Guinea, Estonia, Timor Leste, Mauritius, Cyprus, Swaziland, Djibouti, Fiji, Reunion, Comoros, Guyana, Bhutan, Solomon Islands, Macau, Montenegro, Luxembourg, Western Sahara, Suriname, Cape Verde, Maldives, Malta, Brunei, Guadeloupe, Belize, Bahamas, Martinique, Iceland, Vanuatu, French Guiana, Barbados, New Caledonia, French Polynesia, Mayotte, Sao Tome And Principe, Samoa, Saint Lucia, Guam, Curacao, Kiribati, Micronesia, Grenada, Saint Vincent And The Grenadines, Aruba, United States Virgin Islands, Tonga, Seychelles, Antigua And Barbuda, Isle Of Man, Andorra, Dominica, Cayman Islands, Bermuda, Marshall Islands, Northern Mariana Islands, Greenland, American Samoa, Saint Kitts And Nevis, Faroe Islands, Sint Maarten, Monaco, Turks And Caicos Islands, Liechtenstein, Saint Martin, San Marino, Gibraltar, British Virgin Islands, Palau, Cook Islands, Anguilla, Tuvalu, Wallis And Futuna, Nauru, Saint Barthélemy, Saint Pierre And Miquelon, Montserrat, Falkland Islands, Niue, Tokelau, Vatican City