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Shop Fabrication

For over 20 years, CWS has worked with Western Canada's premier tank fabricators and engineering firms to supply a complete range of shop-fabricated FRP/GRE spools.  Piping systems and circuits of any size can be prefabricated and shipped to site for final tie-ins.  Turnkey quotation services available, including procurement, prefabrication and site installation.  We can supply fiberglass (FRP/GRE) tank internals up to a maximum operating temperature of 107°C and ship them to your project location.

CWS Fiberglass Technology offers various piping assemblies to assist producers with their water quality, including custom fiberglass tank internals, inlet diffusers, radial skim cones, and drafting services.

Shop Fabrication Services

CWS Fiberglass Technology provides shop fabrication services to prefabricate FRP/GRE spools 1" to 60" in diameter as an economical alternative to the expenses associated with complete field construction engineer work packages. We can handle spool fabrication projects of any size and have worked with some of the biggest names in the oil and gas industry. Please see our letters of recommendations from Imperial Oil and CB&I referencing Alberta's largest fiberglass shop fabrication project.

Limited only by the size of the transport, CWS Shop fabrication personnel will fabricate your piping project. CWS will provide complete QC services as per our internal test plan and our ABSA registered ASME B31.3 quality system. CWS bonding procedures include bonding record sheets, bond mapping both product and spools with unique identifiers, then finally packaging for shipping to site for installation.

Testing services are available, as well as generating isometric drawings for fabrication cut sheets.

Send us your corroded carbon steel spool dimensions and we will procure the FRP/GRE for your service application and return a flanged finished product which will last in many cases 5 times longer than carbon steel.

CWS can procure your fiberglass piping components (see product specification page) as referenced in the Chemical and Temperature Resistance Guide, complete with bolt up and gasketing.

Send us your construction drawing package and CWS will supply a complete material take off and provide you with a bill of material and fabrication service quotation.

Fiberglass Tank

Tank Internals

Converging/Diverging Inlet Diffusers

Our custom-fabricated converging/diverging inlet diffusers are complete with flow-straightening assembly. Inlet flow diffusers solve the problem of gravity separation of oil from water by preventing incoming fluids from channeling directly to the tank outlet. Converging/diverging inlet diffusers are available in sizes from 2" to 24".

Diffuser C

The converging throat section of the nozzle minimizes the turbulence and cavitations depending upon fluid velocity.

The velocity reduction capability of the nozzle reduces the kinetic energy of the incoming fluid - reducing the sheer forces that are the direct cause of the generation of additional emulsion.

Floating Skim Units Complete with Fabricated Swivel Hinges

CWS offers adjustable skim units that can be used to skim recoverable hydrocarbons from produced water and oil recovery tanks. With hundreds of these units — ranging in size from 2" to 24" in diameter — in service throughout Western Canada, CWS is a leading industry provider of floating skim units. Our custom-fabricated hinges allow the skim assembly to move with any fluctuations in the normal operating level of the tank. This allows the oil-skimming process to continue uninterrupted and has an advantage over-fixed skim units, which become stagnant should emulsion levels waver. To create your custom floating skim unit, CWS will supply design drawings — based on tank size and nozzle orientation — for your review.

CWS's FRP/GRE inlet diffusers and floating skim units are the industry standard for submersed noncorrosive tank systems.


Radial Skim Cones

As an industry leader in innovation, CWS has successfully developed and installed fiberglass panel radial skim cones. This has allowed existing producers to apply this technology through the design of FRP panels. FRP panels can then be installed in existing field tanks by accessing man-ways or cleanouts as an economical alternative to new construction of field tanks. CWS has constructed radial skim cones in diameters ranging from 6' to 60'.

Custom Fabrication Work



CWS incorporates an extensive library comprised of composite fiberglass reinforced plastic (FRP) products drafted with AutoCAD software. CWS offers custom, shop-fabricated products and can use tank size and nozzle orientation to draft AutoCAD drawings for various tank internal applications.