Overview Reviews Product Description Vibrant Performance Weld Flanges for Tial Blow Off Valves are made from your choice of 304 Stainless Steel, 6061 Aluminum or Titanium construction. Product Videos Custom Field Product Reviews Write a Review Write a Review × Vibrant Vibrant Tial 50mm Blow Off Valve Weld Flange for 4.00" O.D. Tubing Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *