The PTFE shield is manufactured from three layers of woven teflon coated fiberglass fabric, with a central teflon scrim for strength. the material is inherently resistant to Ultra-Violet radiation and includes a ‘litmus’ leak indicator patch contained within clear teflon window.
The easy to fit and lock tight fastening system comprises a velcro strip, coupled with a braided 100% teflon-coated drawstring. When tightened the fabric is drawn over the flange bolts to the pipe wall thus eliminating a lateral spray out.
1. Central Thick Scrim material
Added safety. Without this, a high pressure release can split the outer shield material, creating spray and mist.
2. Permeable Teflon material
Ensures leaking liquid is drawn away from the flange, thus avoiding corrosion (especially in acid duty). Some “non-permeable” shield designs can hold corrosive liquids against the flange.
3. 100% Teflon Pull cord
Provides a strong, re-usable tie down.
4. Teflon Thread
Better resistance against corrosive atmospheres. Other shields use cotton threads which disintegrate quickly.
5. Litmus paper indicator patch
Quick, visual indication of a leak of acid or base