Rigid Water Proof Casing Rigid Water-Proof Coupling (B) Flexible Steeliness Water-Proof Sleeve

Rigid water proof casing
The rigid waterproof casing is suitable in the pipeline puts on the wall place, and can not withstand the pipeline vibration and the construction building which is expansion distorted. Regarding the area requiring earthquake fortification, should establish the flexible connection nearby in the pipeline entering the wall or on the building outer wall if the rigid waterproof casing is used, A is suitable for the steel pipe.

Rigid water-proof coupling(B)
Rigid water-proof applied to the building which will not withsatnd vibration and telescopic deformation in the pipe wall, in the area which required earthquake protection, if you use rigid waterproof coupling, you should set flexible connectionon on the pipeline of exterior wall or the sidewall of tank, type b applies to ductile iron pipe.

Flexible steeliness water-proof sleeve
S312, S404 water-proof sleeve is generally applied to the structure with requirement of vibration or water proof in the position, through which tube goes, on the one hand it contribute to the mounting and dismounting of the pipes and seepage-proofing, on the other hand, it also protect the building avoiding the damage of water and shock.