PIPE REPAIR - Cobalch€¦ · DK70614316 [email protected] 1.8.14.4 Stronger Than the Pipe Itself Nothing can match the proven, ... Clock Spring support services

Cobalch ApS ● Hejreskovvej 24 ● DK-3490 Kvistgård ● Denmark ● Tel.: +45 4582 0533 Danske Bank: 1471 4130088031 ● IBAN - DKK: DK3130004130088031 - EUR: DK4730004130088228 ● Swift code: DABADKKK CVR nr. DK70614316 ● [email protected] ● www.cobalch.com

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Innovative solutions.......

PIPE REPAIR

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The Fast, Economical Solution for Permanent Pipeline Repair

Highly effective, ingeniously simple, the Clock Spring® pipeline reinforcement system redefines the economics of pipeline repair. With the patended Clock Spring® system, permanent field repair and reinforcement of pipe sections weakened by corro-sion or mechanical damage is easy, fast and inex-pensive. The Clock Spring sleeve is a specially developed, 0,06” sheet of high strength composite material. Its unique coil-shaped configuration creates a matrix memory which allows the Clock Spring to wrap tightly around the pipe of virtually any size. Applied with a patented fast-curing yet incredibly strong adhesive, it forms a composite wrap which actually exceeds the yield strenght of the original pipe.

”Clock Spring patented design provides unequaled strenght, economy and convenience. Its simply the smartest pipeline repair decision you can make.”

PROF. CLARK SPRING, World Famous Pipeline Expert


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It’s easier Installing Clock Spring is simple. Each kit contains everything needed to make permanent pipeline repairs. No ma-chinery or highly skilled personnel are required. A two-man crew can be trained in just a few hours to install the Closk Spring system. It’s safer Because Clock Spring is a composite, using an extrenely durable, proprietary adhesive to bond to the pipe’s surfa-ce, no welding or hot work is required. As a result, the dangers of burn-through, metal embrittlement, and cracking in the weld zone are completely eliminated. In nearly all cases, installation can be completed while the line is in operation. Plus, since there’s no need to cut and remove pipe, there are no environmental risks or waste disposal problems.

The Clock Spring system consists of: 1. A patended, high-strength, undi-rectional composite structure. 2. A patended, fast-curing, high-performance two-part adhesive sys-tem. 3. An extremely high compressive strength, proprietary load transfer-ring component. Once installed, the three elements bond together to form an extraordinarily strong, dura-ble repair.

It costs less Clock Spring is much less expensive to install and fits more closely to the carrier pipe than conventional steel sleeves. Compared to cut-outs or actual pipe replacement, Clock Spring is usually substantially cheaper. Because it installs so quickly, time, equipment and labor costs are vastly reduced, and throughput is never interrupted. It’s faster Installing Clock Spring involves just a quick, three-step process; treating and filling the damaged or corroded sec-tion, wrapping the Clock Spring sleeve, and applying a traditional coating (tape, heat-shrink or painted). Typical repairs take less than 25 minutes to actually install. The innovative adhesive cures amazingly fast. In less than two hours, start to finish, the repair is complete, leaving the repaired area even stronger than when the pipe was new. It’s proven Literally thousands of hours of research have gone into the Clock Spring system. It has been exhaustively tested and proven reliable and extremely durable by an array of respected independent research organizations under the management of the Gas Research Institute.


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Stronger Than the Pipe Itself Nothing can match the proven, long-term strength of the Clock Spring system. Extensive hydrostatic and pneumat-ic burst tests by independent laboratories - and supervised by the Gas Research Institute - have demonstrated time after time that even pipe with severe defects reinforced with Clock Spring can sustain operating pressures in ex-cess of the maximum pressure rating.

Burst tests performed on large-diameter pipes con-firm Clock Spring’s ability to withstand greater-than-maximum pipeline pressures. This specimen had an 8 ¼” x 1 ½” defect over 50% through the wall. The test piece failed outside the Clock Spring sleeve at a pressure of more than two-and-a half times the MAOP.

Clock Spring is also effective in reinforcing curved pipe sections, as the results of this burst test clearly show. This test piece had a 6 ¼” x 1 ¼” defect over 50% through the wall, located on the outside curva-ture of the bend. The specimen failed outside the repair zone at more than twice the MAOP.

Proven for small-diameter pipes Tests were conducted on eight- and 10-inch diameter pipe in both straight and curved sections. Flaws were ma-chined into the pipe surface, then filled using the proprietary Clock Spring load transferring agent. Clock Spring sleeves were then applied. In all tests, the Clock Spring reinforcement allowed the damaged sections of the pipes to hold pressures subtantially greater than the maximum allowable operating pressure for the pipe. Proven for large-diameter pipes Repaired pipe sections ranging from 16 to 42 inches in diameter were subjected to hydrostatic and pneumatic tests. Each pipe had a machined flaw, corrosion, or mechanical damage. All flaws varied from 50% through-wall depth up to as much as 80% through-wall depth. The defects were filled and repaired using the Clock Spring sys-tem. The reinforced pipes were then tested and, as before, in all cases, the results proved Clock Spring’s ability to sustain above-maximum operating pressures. Effective in arresting ductile cracks Extensive testing has also demonstrated Clock Spring’s effectiveness in halting propagating ductile axial pipeline cracks. With Clock Spring sleeves installed af intervals, propagating fractures were deliberately induced in pneu-matic test pipes of varying diameters. The subsequent ruptures in the high-pressure gas lines were entirely con-tained within the reinforced areas, resulting in minimum pipe loss.


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DOT approved for repair of gas and liquid lines

The U.S. Department of Transportation has approved the Clock Spring system for repair and reinforcement of both gas transmission and liquid pipelines. Its consistently relia-ble performance, enabling it to meet these tough standards, further affirms Clock Spring’s ability to handle most pipeline repair jobs.

Clock Spring sleeves are available in a variety of sizes to fit pipe diameter from six to 56 inches.

”Only Clock Spring sleeves can chalk up results like these.”


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Easy Installation in Minutes

Thousands of Clock Spring sleeves have been installed on lines ranging from six to 56 inches in diameter. After a brief initial orien-tation, a two-man crew can complete an installation in less than half an hour. Time required from start of the repair until Clock Spring's load transferring filler and adhesive have fully cured is less than two hours. Clock Spring's special bonding adhesive eliminates the need for welding or cutting, and the need for expensive welding crews. Re-pairs can be completed while the pipeline is fully operational, elim-inating costly down time. In addition, Clock Spring requires only six inches of clearance under the pipe for installation. Simply ex-cavate the immediate area, prepare the pipe surface and apply the Clock Spring sleeve. Clock Spring is a much safer alternative to traditional pipe repair. No special handling, lifting or installation equipment is required. Because there's no hot work involved, any danger of burn-through is eliminated. There's no risk of inducing embrittlement or cracking in the pipe wall. Clock Spring kits contain: - One Clock Spring sleeve (12" wide x 1/2" thick when installed) - Patented high-performance adhesive - Proprietary load transferring component - Two roller applicators - One double-sided adhesive starting pad - Alignment blocks - Application brushes, paint tray liners, stir stick, jiffy mixer, trash bags - An optional, specially designed installation stand is also available

Clock Spring installs easily in the field in about 25 minutes. Allowing time for Clock Spring's special adhe-sive and filler to cure, the entire installation takes less than two hours, start to finish.


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CLOCK SPRING Installation Procedures

Clock Spring support services Clock Spring offers a full range of support services, including application engineering assistance, training and tech-nical consultation. Clock Spring Company is staffed by trained professionals with the technical experience and pipeline knowledge to provide the support and services required to adress the most challenging pipe repair needs.

1. Only six inches of clearance underneath or to adjacent pipelines is needed for installation. After first applyingthe load transferring filler to the damaged area, a self adhesive pad is appli-ed to the pipe surface from which to start the wrap.

2. Adhesive is applied to the pipe surface. The Clock Spring composite sleeve is fed onto the pipe, with adhesive applied to each wrap of the sleeve. Matrix memory allows the sleeve to wrap easily around the pipe.

3. Clock Spring’s matrix memory also causes the sleeve to tighten around the pipe. Installers then use a tension strap and bar to further cinch the Clock Spring securely in plane.

4. In about 25 minutes the installation is com-plete. Two hours later, the repair can be coated and backfilled.


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PERMANENT PIPE REPAIR SYSTEM

Clock Spring's patented design re-defines the economics of pipeline repair, insuring permanent field repair that is easy, fast and inexpensive. Clock Spring® pipe reinforcement system is a high strength corrosion resistant composite sleeve, a high-performance adhesive and a high compressive strength filler material. The composite sleeve is uniquely coil-shaped and sized to wrap tightly around pipe diameters from 4" to 56" providing eight (8) individual layers bonded together insuring permanent field repairs and reinforcement of pipe sections. Clock Spring® repairs are fast, economical and easy. Since no cutting or welding is required, there are no risks to the environment, release of greenhouse gases or waste disposal problems.

It's simply the smartest pipeline repair decision you can make.


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Clock Spring Pipe Reinforcement System Product Specification Sheet

I. SLEEVE SPECIFICATIONS Use Designed to repair/reinforce damaged or corroded sections of line pipe with less than 80% thru-wall loss. Standard configuration 8 layers Nominal thickness 1/2" (13 mm) Application temperature 0°F to 170°F (-18°C to 77°C) Service temperature -20°F to 170°F (-29°C to 77°C) (For temperatures below -20°F (-29°C) contact COBALCH ApS) Material E-glass/polyester resin Width 11,500" ± 0,500" (292 mm ± 13 mm) Service life >50 years II. ADHESIVE SPECIFICATIONS Lap Shear Strength >1200 psi (8.27 MPa) Shelf life 12 months from date of manufacture III. FILLER SPECIFICATIONS Compressive Strength <8000 psi (55 MPa) Shelf life 12 months from date of manufacture IIII. ACTIVATOR SPECIFICATIONS Shelf life 12 months from date of manufacture (NOTE: Refrigeration at 38°F - 52°F (3° - 11° C) will extend material shelf life an additional 3 months)


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PIPE SUPPORT

Provides effective protection at support or hanger locations and can be applied quickly and easily – requiring no special tools or training. Clock Spring® pipe support is a high-strength corrosion resistant fiberglass composite sleeve, a high performance adhesive and a filler material. The fiberglass composite sleeve is uniquely coil-shaped and sized to wrap tightly around pipe diameters from 3/4" to 36" providing two (2) individual layers bonded together resulting in a laminate thickness of approximately 1/8". Clock Spring® repairs are fast, economical and easy. Since no cutting or welding is required, there are no risks to the environment, release of greenhouse gases or waste disposal problems.


Clock Spring® PS


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I. SLEEVE SPECIFICATIONS Use Designed as full encirclement wrap to provide wear surface and eliminate crevice corrosion at pipe support interface. Standard configuration 3 layers - Standard configuration Can be varied depending on specific application Nominal thickness 1/8" (3 mm) Application temperature 0°F to 170°F (-18°C to 77°C) Service temperature -20°F to 170°F (-29°C to 77°C) (For temperatures below -20°F (-29°C) contact COBALCH ApS) Material Fiberglass and polyester resin Width 11,500" ± 0,500" (292 mm ± 13 mm) II. ADHESIVE SPECIFICATIONS Lap Shear Strength >1200 psi Shelf life 12 months from date of manufacture III. FILLER SPECIFICATIONS Lap Shear Strength >8000 psi Shelf life 12 months from date of manufacture IIII. ACTIVATOR SPECIFICATIONS Shelf life 12 months from date of manufacture (NOTE: Refrigeration at 38°F - 52°F (3° - 11° C) will extend material shelf life an additional 3 months)


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SNAP WRAP

Clock Spring® SW

An economical repair alternative for low-pressure piping that can be applied quickly and easily – requiring no spe-cial tools or training. Clock Spring® snap wrap is a high strength corrosion resistant fiberglass composite sleeve, a high performance adhesive and a filler material. The composite split sleeves are uniquely shaped and sized to wrap around pipe di-ameter ranges of 3/4" to 24". The individual layers are bonded together and to the pipe surface to fully restore ser-viceability. Clock Spring® repairs are fast, economical and easy. Since no cutting or welding is required, there are no risks to the environment, release of greenhouse gases or waste disposal problems.



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I. SLEEVE SPECIFICATIONS Use Designed to repair/reinforce damaged or corroded sections of small diameter pipe operating up to 500 psi with less than 90% thru-wall flaws Standard configuration 8 layers (Number of layers may be modified Based on manufacturer's analysis) Nominal thickness 3/8" (9 mm) Application temperature 0°F to 120°F (-18°C to 49°C) Service temperature -20°F to 130°F (-29°C to 54°C) (For temperatures below -20°F (-29° C) contact COBALCH ApS) Material E-glass and polyester resin Width 11,500" ± 0,500" (292 mm ± 13 mm) II. ADHESIVE SPECIFICATIONS Lap Shear Strength >1200 psi Shelf life 12 months from date of manufacture III. FILLER SPECIFICATIONS Lap Shear Strength >8000 psi Shelf life 12 months from date of manufacture IIII. ACTIVATOR SPECIFICATIONS Shelf life 12 months from date of manufacture (NOTE: Refrigeration at 38°F - 52°F (3° - 11° C) will extend material shelf life an additional 3 months)


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HIGH TEMPERATURE

Clock Spring’s patented design re-defines the economics of pipeline repair, ensuring permanent field repair that is easy, fast and inexpensive. Clock Spring® HT pipe reinforcement system is a high strength composite sleeve, a high performance adhesive and a high compressive strength filler material for use on high temperature pipelines. The polyvinyl composite sleeve is uniquely coilshaped and sized to wrap tightly around pipe providing eight (8) individual layers. The high temperature filler transfers load to the Clock Spring® while the adhesive bonds the unit into a monolithic structure providing permanent repair. Clock Spring® repairs are fast, economical and easy. Since no cutting or welding is required, there are no risks to the environment, release of greenhouse gases or waste disposal problems.



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I. SLEEVE SPECIFICATIONS Use Designed to repair/reinforce damaged or corroded sections of line pipe with less than 80% thru-wall loss. Standard configuration 8 layers Nominal thickness 1/2" (3 mm) Application temperature 0°F to 248°F (-18°C to 120°C) Service temperature -20°F to 248°F (-29°C to 120°C) (For temperatures below -20°F (-29° C) contact COBALCH ApS) Material E-glass, polyvinyl resin Width 11,500" ± 0,500" (292 mm ± 13 mm) Service life >50 years II. ADHESIVE SPECIFICATIONS Lap Shear Strength >1200 psi Shelf life 12 months from date of manufacture III. FILLER SPECIFICATIONS Comprehensive Strength >8000 psi Shelf life 12 months from date of manufacture IIII. ACTIVATOR SPECIFICATIONS Shelf life 12 months from date of manufacture (NOTE: Refrigeration at 38°F - 52°F (3° - 11° C) will extend material shelf life an additional 3 months)

Clock Spring® is a registrated trademark of NCF Industries. All rights reserved. Manufactured under license from NCF Industries.

Technical modifications reserved

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PIPE REPAIR - Cobalch€¦ · DK70614316 [email protected] 1.8.14.4 Stronger Than the Pipe Itself Nothing can match the proven, ... Clock Spring support services