First, the product structure characteristics: 
 Such compensation by the two bellows in the middle to take over and small rod with limit nut and other integral parts, which in the absorption of lateral displacement while absorbing axial displacement, but can not bear the internal pressure thrust. 
 Second, model: factory production 10000mm DN300 pressure level of a 0.01 ~ 0.25Mpa. 
 Third, the connection: 1, flanged type 2, take over the connection type 
 Fourth, lateral compensation :27-700mm