WPC120 - High Temp Heat Shrink

 High Temp Heat Shrink for Pipelines

Covalence WPC120

     In the world of pipeline coatings, many different factors are important criteria for selecting the proper external corrosion prevention coating for your project. These can range a great deal, depending on the priorities for the engineers associated with any given pipeline project.  One thing never changes though:  the pipe coating must be compatible with the operating temperature of the pipeline.

     Elevated temperatures on pipelines can present quite a challenge to pipeline coatings.  Elevated temperatures can make some products become brittle.  High temperatures can make adhesives and sealant soften, leading to reduced peel, sheer and penetration resistance.  Temps can also lead to cracking and worse cathodic disbondment results.  "What is the operating temp of the line once it is in service" is almost always my starting point when working with someone to be sure our products are properly specified.  

     Covalence WPC120 is a heat shrink sleeve rated for use on pipelines operating at up to 251F.  WPC120 can also be used on pipelines operating at something less than 251; that is just the maximum.  Available in sleeve widths of 11", 17", 24" or 34" (can also offer custom widths as needed) it is the perfect selection for pipelines operating at high temps.

     Though WPC120 is not compatible with factory coated PP; with a few modifications, it becomes a sleeve system called PPS120 that can.  Give me a call so we can discuss your next project!  Steve - 936/321-3333

WPC100M

High Temp Shrink Sleeves

An installed WPC100M sleeve.

     In the oil and gas coatings world, many lines are designed to have the capability to coat a pipeline that could operate at up to 100C.  In terms of factory coatings, a 100C line has a number of options:  high temp FBE, PP or PE being just a few of them.  WPC100M is compatible with any of those options.  The aggressive mastic of the WPC100M bonds well to any commonly applied pipeline coating.  In addition, the surface preparation is not nearly as stringent as many epoxies and WPC100M is a very practical field application.  Save money on surface prep and save time on labor with WPC100M.

WPC100M Features and Benefits:

• Dimpled backing provides a 'permanent change' indicator for application of heat.  This ensures correct application of heat and allows easy post heat inspection.  Reliable inspectability at any time; even hours, days, weeks or months later.
• Low preheat sensitivity and proven functionality.  Installation friendly in combination with high functional performance.
• Available as all in one unit or roll form - saves money by keeping inventory and logistics costs low.
• High shear resistance - WPC offers safer protection.
• Covers a wide range of operating temperature ratings.  Offers a solution for nearly every pipeline coating application.
• No special equipment or skills required - only a standard gas torch and a roller.  Fast, easy and low cost application.

• WPC100M rated to 80C onshore / 100C offshore
• Compatible with PE, PP, FBE, Tape and Coal Tar
• 100C preheat temperature required
• ST 2 1/2 - ST3 or SA 2 1/2 surface prep required
• Soil Stress Restrictions:  NONE

WPC120 Shrink Sleeve

High Temp Shrink Sleeve WPC120

Rated for use at 120C (251F) WPC120 is our highest rated shrink sleeve

     WPC120 heat shrinkable wrap around sleeves are designed for corrosion protection of girthwelds on buried pipelines operating at temperatures up to 120C.  WPC120 sleeve have a thick radiation crosslinked polyolefin backing coated with a high shear strength thermoplastic hotmelt adhesive.  during the installation the adhesive melts and flows, filling surface irregularities, bonding to metal and adjacent coated surfaces.
   
     At operating temperatures the adhesive and backing form a solid, tough, well bonded coating.  The flexible closure is coated with a high shear strength adhesive and is normally supplied separately with the sleeve; however, it is available pre attached to the sleeve in the unisleeve construction.

     To install, wrap the sleeve around a clean, preheated pipe (230C minimum).  A flexible closure forms the sleeve into a tube.  The sleeve is then torch shrunk and installed with simple tools.  No powder, primer or sophisticated equipment is required.  However, an induction heater can be used to reduce preheat time.

     WPC120 sleeves resist abrasion, impact and penetration, yet remain flexible even at very low temperatures.  No rock shield is required.

     WPC120 sleeves resist temperature cycling, soil stresses and hydrostatic pressure.  They demonstrate high resistance to ultraviolet light, fungus, cathodic disbondment and chemical attack by common fluids and solvents.  WPC120 sleeves are compatible with FBE, PE and most other high performance pipe coatings (but not PP unless a mastic material is used as the bonding agent).  The product has a long shelf life and is unaffected by typical storage conditions.

     

WPC120 / PPS120 High Temp Shrink Sleeves

WPC120 / PPS120 

      WPC120 (also sometimes called PPS120) is our highest rated (temperature) heat shrink sleeve system.  Rated for use on pipelines operating at up to 251F (120C), this WPC120 has a long, successful use history both on and offshore.  Interestingly, this same shrink sleeve (WPC120/PPS120) is used in two separate pipeline coating systems.  I'll break those down below.

     As WPC120, it is a stand alone two layer shrink sleeve system.  With the outer side being a heat shrinkable, high density polyethylene backing and the sealant layer being a high temperature, high shear hot melt adhesive, WPC120 is written in specs all over the world (and has been for many years).  Compatible with both PE line coatings and FBE, WPC120 is the field joint coating of choice for high temp lines.  

     As PPS120, the WPC120/PPS120 shrink sleeve is one component of the PPS120 shrink sleeve system.  PPS stands for "PolyPropylene Sleeve".  When used in conjunction with S1113 mastic and S1401M liquid epoxy; this sleeve system can be used with polypropylene coated pipelines and has been for years.  Polypropylene is a different animal when it comes to pipeline coatings.  It is difficult to bond to which makes it a challenge for any field joint coating; but the PPS120 sleeve system has been used to tackle that tough problem many times over the years. 

High Temp Shrink Sleeve - WPC100M

High Temp Shrink Sleeve

WPC100M

    

Covalence WPC100M (formerly Raychem / Berry)

     WPC100M is a wrap around heat shrink sleeve designed for use on pipelines that will operate at elevated temperatures.  In a situation where this sleeve will be in contact with soil (buried as an example) it is rated to 80C (176F).  In cases where this sleeve will be encapsulated in some way (beneath an infill system; beneath insulation, etc) it is rated to 100C (212F).  

     With a long, successful use history, WPC100M has proven reliability both in terms of performance and in terms of having a simple, easily repeatable installation.  WPC100M is a two layer heat shrink sleeve.  The outer layer is a radiation crosslinked, high density polyethylene.  The inner layer is a specially formulated, aggressive mastic sealant.  

     Like many of the other products in the Covalence Heat Shrinkable products family, WPC100M is supplied with PCI.  This means that the backing of the sleeve is supplied with a dimpled cross hatch pattern and as the shrink sleeve is properly shrunk, this pattern fades to a smooth surface.  This gives installers, inspectors and end users the confidence of knowing that heat shrink sleeve was properly heated during installation.  

     The aggressive mastic sealant is also capable of bonding to all commonly used pipeline coatings; including (but not limited to) FBE, polypropylene, polyethylene and CTE.  This makes the WPC100M one of the most versatile products in the market place.  WPC100M can be used on any pipe size; from 2" up to and beyond 48".