VSSJA-2 Double Flanges Loosing Stop Metal Expansion Joint

VSSJA-2 double flange loosing stop metal expansion joint is also called B2F pipe compensator in GB/T12645-2007, it consists of body, follower, gland and slip pipe. Based on VSSJA flange adaptor, there are another two flanges and slip pipe. Compared with VSSJA-1 single flange loosing stop expansion joint connection, which connection is one end flange, one end welding.