Cartridge version of Type 670 High Temperature Metal Bellows Seal
The advance design of bellows seals having only one moving part, the bellows, solves a number of problems that difficult products can pose. The bellows eliminates fretting and hang up on the sleeve due to solids in the product which are thrown off form the bellows by centrifugal action avoiding problems of clogged springs.
The 670 bellows seal at the heart of the cartridge has a high corrosion resistance and is totally interchangeable with the 680 and 676 edge welded bellows seals which may be substituted if their particular characteristics are required.
High Performance edge welded metal bellows, Temperature range of -50 oC to 22 oC without the need to condition the process fluid, Speeds up to 25m/s, Pressures upto 20 Bar, Patented nested ripple bellows with 45 degree tilt angle for reduced stress and improved fatigue life. Self cleaning non clogging design. API 682 design features. Options of Carbon / Tungsten Carbide / Silicon Carbide faces. High Quality Silicon Carbide seats.