• Technologically advanced• Online Installation• Cost effective• Verified as per ASME PCC-2

Full Composite Epoxy Sleeve Designed For The Strengthening And Protection Of Pipelines

Combining the Best of both Epoxy Sleeve Repairs and Composite Wrapping Techniques

SECTIONAL CUT OUT DETAIL

Polyamide End Cap

Interlocking PE or PTFE Sleeve

Carbon FibreReinforcement

Grout Fill

HELICOID Epoxy Sleeve TM Technology that is simply the best

FULL COMPOSITE EPOXY SLEEVE DESIGNED FOR THE STRENGTHENING AND PROTECTION OF RISERS AND SUB SEA PIPELINES

The Helicoid Epoxy Sleeve ™ is a helically wound, carbon �bre reinforced, mechanically interlocking PE or PTFE strip, allowing an annulus of approximately 25 to 35 mm around the pipe to be �lled with an epoxy or cementatious grout, therewith giving outstand-ing strengthening and protection qualities The Helicoid Epoxy Sleeve™ has been designed, tested and certi-�ed in accordance with the ASME PCC-2 and is an approved repair system under the ASME 31.4 and ASME 31.8 for repairs of external wall thinning, dents and gouges The sleeve can be installed to risers, up to 3.0 m below MSL, completely diverless, in diameters between 150 mm to 600 mm and up to a length of 10.0 m in one single application, without the shut down of the facilities

Bene�ts Of Helicoid

Epoxy Sleeve TM

Pre-engineered

O�-the-shelf

Diameters between 150mm to 600mm

Length up to 10.0m

For strengthening and protection

On-line installation

Above water and subsea installation

Diverless riser installation

Corrosion resistant

Impact resistant

Temperatures up to 120 degrees Celsius

Easy and fast installation

Durable

Marine growth resistant

Cost e�ective

Multiple sleeves to accommodate

extended length

Independent third party veri�cation

by Lloyd’s Register and tested in acco-

dance with ASME PCC-2-2006,

“Repair of Pressure Equipment and Piping”

Main Characteristics

Reinforcement properties Fibre nature : Carbon �ber, Torayca T700 SC

Fibre direction: uni-directional, pultruded

Flexural Strength ( ASTM D 790) :1480 N/mm2

Flexural Modulus (ASTM D 790) : 89000 N/mm2

Tensile Strength (ASTM D 3039) : 2350 N/mm2

Tensile Modulus( ASTM D3039) :140,000N/mm2

Elongation at break (ASTM D 3039) : 0.8 %

Poisson Ratio : 0.2

Density : 1750 kg/m3

Grout Properties Chemical family : Epoxy

Compressive Strength ( ASTM C 109) : 100 N/mm2

Compressive Modulus ( ASTM C 109 ) : 2100 N/mm2

Flexural Strength ( ASTM D 790) : 26 N/mm2 @ 7 days

Tensile Strength (ASTM D 638) :14 N/mm2 @ 7 days

Coe�. of Therm. Exp. ( ASTM D 351) : 28.1 x10 3

Bond Strength to Steel ( UW) (ASTM D 4541) >10.5 MPa

Heat De�ection Temp ( ASTM D 648) : 83 degrees C

PE Strip Properties Tensile Strength ( ASTM D 638) : 28 N/mm2

Flexural Modulus ( ASTM D 790) : 1400 N/mm2

Izod Impact ( ASTM 256) 0.07 Joules/mm of Notch

Heat De�ection Temperature (ASTM D 648) : (@ 0.5N/mm2) : 78 degrees C

Water Absorption ( ASTM D 570 ) : 0.10 %

Coe�. of Lin. Therm. Exp. (ASTM D 696 ) : 3.85 mm/mm/degrees C x 10-5

2. Winding of sleeve continued to full required length

1. Installation of winding cage

3. Epoxy grout injection procedure 4. Cut out shows epoxy grout injection into sleeve annulus

5. Helicoid sleeve repair complete 6. Sleeve repair procedure repeated along pipeline as required

Typical Installation Sequence on Sub Sea Pipeline

2. Insertion of Polyethylene strip to commence winding of sleeve

1. Installation of winding cage

3. Attachment of polyamide caps

4. Sleeve is wound to full required length

5. Injection of epoxy grout 6. Helicoid sleeve repair complete

Typical Installation Sequence on Riser ( Riser Splash Zone Area )

Lloyd's Register’s test certi�cates can be made available upon request

YOUR ASSURANCE IN STRENGTH AND PROTECTION

Surface Preparation Of Riser

As part of the installation of the sleeve, a system has been developed for the removal of marine growth, neoprene liners and coatings of up to 3.00 m below MSL, without the intervention of divers The lightweight, modular equipment can be installed by a crew of 2 technicians and is capable of achieving surface cleanliness of up to Swedish Standard SA 2.5 by means of high pressure water - and abrasive blasting The level of cleanliness can be monitored from the top deck through attached CCTV cameras

1. Installation of riser cleaning equipment 2. Surface preparation of riser

4. Cleaning of riser below water to required depth

3. Cleaning of riser above water to required length

6. Completion of surface preparation5. Cleaning under water

Preliminary Riser Surface Preparation

Simply The Best Pipeline Strengthening & Protection System.

Merit Technologies Sdn Bhd(comp. no. 655607-U)

No. 8, Jalan PJU 3/45,Sunway Damansara Technology Park,47810 Petaling Jaya,Selangor Darul Ehsan,Malaysia

Tel: + 60 3 7805 3811Fax: + 60 3 7805 4811email: info@merit.net.mywww.merit.net.my I www.helicoid.com.my