Description :
Absorb dimensional changes mainly caused by thermal expansion or contraction of a pipeline, duct, or vessel.
Specification :
1. Nominal bore: (mm): 20, (Ins): 3/4.
2. Total length(mm): 250.
3. Bellows: (O.D.): 32, (Corr's No): 31.
4. Axial movement(mm): +5 -25.
5. Force to compress(kg): 34.
6. Effective area(cm2): 5.4.
