Help eliminate flange leakage with BelleFlex® Belleville washers for flange bolting. Leaks occur from bolt stretch, gasket creep, cycles of thermal change, etc. However, by maintaining load on bolted joints, leakage is greatly reduced, if not eliminated.
H13 Tool Steel is the main material for this product group, with a working temperature to 1000°F. Materials, such as 17-4 PH® and 17-7 PH® Stainless Steel, Carpenter Custom 455®, and INCONEL® 625, 718 and X-750 Alloys, are also available.