Dingli custom manufactures single bellows expansion joints in 1-1/2" through 104" diameters. Bellows design follows EJMA (Expansion Joint Manufacturers Association) standards and all welding is in accordance with ASME Section IX. T-321 stainless steel is the most widely used material for bellows applications. We can also design and form bellows in other alloys such as Inconel 625, Inconel 600, Inconel 825, Monel 400, Hastelloy C276, T-316-L stainless steel, T-304 stainless steel, T-310 stainless steel and many other alloys.
Non-standard and metric sizes can also be furnished by Dingli. We have an extensive range of tooling to meet most custom requirements