clock spring composite sleeve repairs wall thinned pipe

CLOCK SPRING - Stuart Steel

The Clock Spring repair is comprised of 8 wraps of composite, the Clock Spring® high-strength filler material and the Clock Spring® adhesive. The individual wraps of the repair are bonded together, and to the pipe surface to restore serviceability. Clock Spring® can be used to permanently repair external blunt metal loss defects with a depth

CLOCK SPRING - Stuart Steel

The Clock Spring repair is comprised of 8 wraps of composite, the Clock Spring® high-strength filler material and the Clock Spring® adhesive. The individual wraps of the repair are bonded together, and to the pipe surface to restore serviceability. Clock Spring® can be used to permanently repair external blunt metal loss defects with a depth CLOCK SPRING Composite Wrap - Pipeline Products and This 6 900# gas pipeline had external pipe damage that warranted a repair and the chosen option was to install a Clock Spring Coil. The Clock Spring pipeline repair coil is qualified for up-to 80% wall loss and is applied without the need for welding or pipeline shutdown. With operations maintained; the pipeline is exposed and NDT tested

CLOCK SPRING Composite Wrap - Pipeline Products and

This 6 900# gas pipeline had external pipe damage that warranted a repair and the chosen option was to install a Clock Spring Coil. The Clock Spring pipeline repair coil is qualified for up-to 80% wall loss and is applied without the need for welding or pipeline shutdown. With operations maintained; the pipeline is exposed and NDT tested CLOCK SPRINGProducts and Services CLOCK SPRING 50 year DOT approved repair system for high pressure transmission pipelines Unidirectional fiberglass polyester or vinyl ester composite repair sleeve Restores full strength to pipelines with up to 80% external wall loss Available in 4 through 56 diameter kits with coil, filler, adhesive, tools

CLOCK SPRING

Products and Services CLOCK SPRING 50 year DOT approved repair system for high pressure transmission pipelines Unidirectional fiberglass polyester or vinyl ester composite repair sleeve Restores full strength to pipelines with up to 80% external wall loss Available in 4 through 56 diameter kits with coil, filler, adhesive, tools COMPOSITES - CASE STUDIES OF PIPELINE REPAIR By Andrew J. Patrick, Clock Spring Company, L.P., Huntingdon, UK ABSTRACT Composite repairs have been utilised within the transmission pipeline industry for over the past 20 years for the permanent repair and reinforcement of sections of the pipe wall which have been weakened due to corrosion.

CSNRI Composites - ClockSpring|NRI

Our composite construction and repair solutions have been deployed in 75 countries and include industry standard products such as Clock Spring, A+ Wrap, Atlas, Syntho-Glass® XT, Thermo-Wrap Inspectable, and DiamondWrap® composite products. Clock Spring - ClockSpring|NRIThe Clock Spring composite repair sleeve and reinforcement system is uniquely designed for high-pressure transmission pipelines. Made up of a pretensioned unidirectional e-glass composite coil, a high-modulus filler material, and a high lap-shear strength methyl methacrylate adhesive, it is proven to 8,000 psi and has a design life beyond 50 years and installation history of more than thirty

Clock Spring In-line Pigging Solutions

The Clock Spring sleeve was the subject of an extensive 10-year research and development program and was the pioneer for the approval of composite repairs across the industry. It is the most tested, investigated, and documented composite repair solution ever developed and has earned its place as the industrys most trusted composite repair Clockspring - SAVCORcomposite sleeve, a high performance adhesive, and a filler material. The sleeves are uniquely shaped and sized to wrap around a pipe diameters ¾ and larger providing two (2) individual layers bonded together. Leak Stop Clock Spring Leak Stop is a repair technique for leaking pipelines based on the Clock Spring composite technology. The

Comparison of fiber-reinforced polymer wrapping versus

Jan 01, 2015 · Composite sleeves or wet lay-up composite repair kits are typically designed for a standard, fixed length (e.g., Clock Springs ® are 12 in (305 mm) long). If the length of the area requiring repair is longer than that which can be repaired by a single composite sleeve, the use of steel sleeves may be significantly less expensive than composite Composite Repairs - Alternative to Welding with Wraps Composite repairs - alternatives to welding with composite wraps, patches and pads. External and internal erosive forces and corrosive substances can lead to pitting and thin-wall defects. If not addressed soon enough, they are likely to go through-wall. gives requirements and recommendations for the qualification and design

Composite Repairs - Alternative to Welding with Wraps

Composite repairs - alternatives to welding with composite wraps, patches and pads. External and internal erosive forces and corrosive substances can lead to pitting and thin-wall defects. If not addressed soon enough, they are likely to go through-wall. gives requirements and recommendations for the qualification and design Composite Sleeves for Permanently Restoring the 2 The Clock Spring Repair System The Clock Spring Repair consists of three parts:1. A composite sleeve manufacture from E-glass fibres and polyester resin. The fibres are all oriented to run around the hoop direction of the pipe to maximise the strength of the system in this direction. The sleeve is coloured yellow in the photograph below

Composite Wrap for Non-Leaking Pipeline Defects

composite wrap sleeves are butted adjacent to each other to cover the length of the damage (a ½ gap can remain between butt joints). In the U.S., up to 15 Clock Spring® sleeves have been butted side-by-side to repair defects on pipelines between 16 and 30 diameter at 800 to 900 psi. Composite Wrap for Non-Leaking Pipeline Defectswrap system. For the Clock Spring® composite wrap system, the pipeline rehabilitation process includes the following steps:1. Filling the external defect with the filler material. 2. Winding eight layers of composite sleeve around the pipe with adhe­ sive applied between the layers. 3. Tightening the composite wrap sleeve onto the pipe with

Composite Wrap for Non-Leaking Pipeline Defects

wrap system. For the Clock Spring® composite wrap system, the pipeline rehabilitation process includes the following steps:1. Filling the external defect with the filler material. 2. Winding eight layers of composite sleeve around the pipe with adhe­ sive applied between the layers. 3. Tightening the composite wrap sleeve onto the pipe with Composite wrap approved for U.S. gas-pipeline repairs Three U.S. pipeline operating companies, which declined to be identified, furnished estimates for using conventional steel-sleeve repair and for using the Clock Spring wrap (Table 1) (78953 bytes

Encirclement sleeves reduce pipeline repair costs. - Free

Jan 01, 1996 · Clock Spring's composite sleeves have been used in over ten thousand pipeline repairs with pipe sizes ranging from 6- to 56-inches in diameter, all without costly shutdown, welding or purging. Repairs can be completed while the pipeline is fully operational and require only six inches of clearance under the pipe for wrapping the eight Home - ClockSpring|NRIOur composite repairs and innovative inline insertion valves help keep pipelines up and running without introducing hot work, environmental contamination or excessive downtime.CSNRIs industry-leading composite products repair corrosion and erosion damage, cracks, dents, wrinkle bends, and structural damage, reinforcing pipelines and restoring them to maximum allowable operating pressure (MAOP).

INDUSTRIAL OUTSOURCE PRODUCTS - SKPS

Clock Spring is a composite repair sleeve and reinforcement system uniquely designed for high-pressure transmission pipelines. Wall sleeves provide a better seal than a core drilled hole. In addition, wall sleeves make it easy to repair piping without damaging the wall. Meter Service Fitting Wall Sleeves; UBolt-Cote® Pipe Support Implementation of Composite Repairs on Marine PipelinesA composite sleeve was created. 6 O.Chaves Clock Spring Cross Section (Repaired Dent and Corrosion) Implementation of Composite Repairs on Marine Pipelines Pipe Support Repair Strategy Original plan was to support, remove clamps, UT, then 360 Encirclement by Clock Spring® Pipe

Implementation of Composite Repairs on Marine Pipelines

A composite sleeve was created. 6 O.Chaves Clock Spring Cross Section (Repaired Dent and Corrosion) Implementation of Composite Repairs on Marine Pipelines Pipe Support Repair Strategy Original plan was to support, remove clamps, UT, then 360 Encirclement by Clock Spring® Pipe PIPELINE REPAIR IN SWAMP AREAS ArticlesIn June 2008 OIL&GAS JOURNAL RUSSIA published an overview of advanced pipeline repair techniques. The article gave a review of the repair methods using composite sleeve, fiberglass repair sleeve, pipeline composite reinforcing sleeve Smart Lock and Clock Spring.

Pipe Reinforcement & Repair System

Clock Spring being the pioneer for the approval of composite repairs across the industry. The approval identied Clock Spring as a repair which permanently restores the serviceability of the pipe. The Clock Spring repair sleeve is a three-part system designed to structurally reinforce and permanently repair external anomalies. The Pipe Reinforcement & Repair SystemClock Spring being the pioneer for the approval of composite repairs across the industry. The approval identied Clock Spring as a repair which permanently restores the serviceability of the pipe. The Clock Spring repair sleeve is a three-part system designed to structurally reinforce and permanently repair external anomalies. The

Pipe Support System (PS) By Clock Spring Company

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. Pipeline & Distribution - ClockSpring|NRIThe Clock Spring composite repair sleeve and reinforcement system is uniquely designed for high-pressure transmission pipelines. Made up of a pretensioned unidirectional e-glass composite coil, a high-modulus filler material, and a high lap-shear strength methyl methacrylate adhesive, it is proven to 8,000 psi and has a design life beyond 50

Pipeline & Piping Services - SKPS

Clock Springs patented design re-defines the economics of pipeline repair, ensuring a permanent repair that is safe, economical and effective. The Clock Spring® pipe repair system is a high strength corrosion resistant e-glass and resin composite sleeve, a high performance adhesive and a high strength filler material. Clock Spring repairs Pipeline repair techniques - SlideShareApr 29, 2015 · An example of pre-cured composite sleeve is the Clock-Spring [CLS], (Figure 5) Figure 5 :Clock-Spring For the wet-tape technology, the impregnation of the fiber reinforcement is performed on site during the implementation of the repair.

Summary of Clock Spring Current Approval Positions

250 psi to insulate the pipe wall from the high-voltage cables. Clock Spring repaired composite sleeve while the operator maintained 10 psi and 15 psi. The non-leaking defects were repaired with Snap Wrap with normal oil pressure in the pipe (250 psi). Clock Spring® composite repair system can be used to reinforce corrosion or other Summary of Clock Spring Current Approval Positions250 psi to insulate the pipe wall from the high-voltage cables. Clock Spring repaired composite sleeve while the operator maintained 10 psi and 15 psi. The non-leaking defects were repaired with Snap Wrap with normal oil pressure in the pipe (250 psi). Clock Spring® composite repair system can be used to reinforce corrosion or other

Testing Program Validates Wrinkle Bend Repair Solution

composite repair materials in use. One of the first limitations identified in many composite repairs is the difficulty in appropriately applying the repair on the underside of the pipe, where gravity hinders adherence. The axial strip is applied to the pipe, but sags, Transmission Pipeline Repair Methods - AUCSCA. Split sleeve B. Composite sleeve C. Clamps Do a pro/con list of each (split sleeve that is a Class A and isnt welded up can have water migrate in and out). CAUTION:Not all repair methods are compatible with all anomalies (i.e. composites with cracks). 2011 AUCSC ACCEPTABLE THREAT PREVENTION AND REPAIR METHODS

Use of Clock Spring® as a permanent means of pipeline repair

Jan 01, 2015 · Composite sleeve repair systems like Clock Spring ® were the subject of a rigorous research and development program conducted under the management and auspices of the Gas Research Institute. In 1999, this composite sleeve system managed to get US Department of Transportation approval for permanent pipeline repairs for high-pressure gas transmission line repairs. Use of Clock Spring® as a permanent means of pipeline repairJan 01, 2015 · Composite sleeve repair systems like Clock Spring ® were the subject of a rigorous research and development program conducted under the management and auspices of the Gas Research Institute. In 1999, this composite sleeve system managed to get US Department of Transportation approval for permanent pipeline repairs for high-pressure gas transmission line repairs.

Clock Spring Composite Sleeve Repairs Wall-Thinned Pipe

18 Clock Spring composite sleeves installed on 42-inch (1,067-mm) and 16-inch (406.4-mm) wall-thinned pipe sections of a gas transmission system Installed marker bands on the transmission line to delineate the repaired area

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