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Design Requirements
The INSULTECH Thermal Blanket System will be custom fitted to the treated surface. This will ensure maximum thermal performance and will allow quick and easy installation and removal. Blanket pieces will match and account for all surface protrusions [Ex. Tubing, Brackets]. All blanket pieces will include necessary fastening hardware of both Stainless Steel Wiretwists and extended Hook & Loop Velcro ™ Flaps. There will be no open gaps on any closing seams.
Blanket Construction
Blanket construction shall be a double sewn lock stitch with a minimum of 7 stitches per inch. All raw jacket edges will have a tri fold Teflon cloth binding. No raw cut edge will be exposed. Stitching will be done with Teflon coated fiberglass thread.
Blanket Overlap
To avoid penetrating cold at closing seams, blanket pieces will include an extended 2" fabric flap. This flap will cover the exposed seam and will minimize any potential air movement.
ID Plates
For easy identification and location, a stainless steel or aluminum name plate tag is riveted to each blanket piece. 1/8" Embossed lettering shows location, description, size, pressure rating and tag number sequence.
Quality Pins
To enhance blanket quality and to maintain uniform thickness, stainless steel quilting pins will be placed at random locations no greater than 18" apart. This will prevent shifting of the insulation filler.
Minimized Air Void
Blanket design will conform to the equipment surface with minimized air void. The total number of pieces will be minimized. Any one piece will not exceed 50 lbs. in weight. Designs will minimize installation time as well as removal time.
Assembly Drawing Requirements
For multi-piece designs, an installation assembly drawing is required. The assembly drawing will reference tag number sequence for installation. Each blanket piece will have an I.D. tag corresponding to the assembly drawing. Instructions for install and Material List will also be included. Copies will be submitted for future reference and files.
Design Requirements
All blanket designs will accommodate vibration probes, gauges, tubing, piping, brackets, etc. All blanket pieces will be guaranteed to fit.
Standard Fastener
A 20 gauge stainless steel wire is doubled up and twisted in a spiral fashion with a minimum of 4 twists per inch. Wiretwist length will be 16" or longer. The Wiretwist will be secured to the lacing pin at the pin stem. Lacing pin stems will be 14 gauge.
Fastening Options:
Velcro
Velcro hook & loop fastener sewn to an outer jacketing flap. 1" wide "D" Ring fastener sewn onto the belt. A minimum 3" of belting will be secured to the outer jacket fabric. Belting will be spaced apart a maximum of 6" at centerline between belts or blanket edge.
Design Guidelines
To access the true limitations of this recommended design, refer to the technical data sheets on each product component. Following these guidelines will produce the highest achievable service life. Blanket design quality can be reduced or enhanced by changing any one component. If a question arises regarding deviations from those stated guidelines, please contact your regional representative or call Shannon direct.
Project Qualifications
All items to be insulated will require a field takeoff prior to bid submittal, and must be reviewed for proper cost estimation. Upon receipt of project contract, each and every item must be accurately measured for retrofitting to existing field conditions and tagged with an aluminum or stainless steel identification tag showing an item number for installation reference. At the time of installation, blankets must have a corresponding item number shown on the blanket tag and must match to existing tagging on fitting. No standard blanket designs will be accepted. This will assure good thermal performance.
Warranties
All blankets will carry an 18 month warranty covering the replacement cost of the blanket. This warranty will cover blanket failure due to premature degradation from either blanket components used in the blanket, the blanket design construction or workmanship.
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