Device for take experiment of valve rod bellows subassembly leakproofness

The utility model relates to a device for take experiment of valve rod bellows subassembly leakproofness, it is including the base, the bottom flange, its technical essential is: the base is the ventilate seat and the bottom flange of fixedly connected with band-pass gas pocket in proper order upwards, on the symmetric position of bottom flange respectively threaded connection have one be parallel to each other and with bottom flange looks vertically pull rod, the other end and the holding down plate fixed connection of this pull rod, this holding down plate still threaded connection has a top board, still sealing connection has a bellows between bottom flange and holding down plate. Increase the bellows between base and clamp plate, through the elasticity of bellows, adapt to the seal tightness test that different length and size took valve rod bellows subassembly, the convenient different valve rod length and size of adaptation of ability the utility model discloses still have rational in infrastructure, simple structure, convenient operation, the seal tightness test effect is obvious, long service life, range of application advantage such as wide