Metal bellow type mechanical seal for corrosive liquids
676 John Crane

Sealol developed the first welded metal bellows seal in 1957 to solve critical and demanding applications for NASA, and extended this technology to the process industry. Over 40 years of reliable performance in a broad range of applications, combined with an annual output of over 200,000 bellows seals, establishes Sealol as the leader in bellows sealing technology.

The Type 675 and 676 provide the same performance benefits as the Type 670, but use different materials of construction. The Type 675, with a Titanium bellows, is ideal for chlorine, chlorine dioxide, and ferric chloride services. The Type 676, with an AM350 stainless steel bellows, is well-suited for mild corrosive and abrasive applications, such as miscellaneous water and paper stock.