... Metal bellow seals quivalent to johncrane type670 type 672 type 676, type680 for low temperature working conditions The Type 670 is ... operating temperatures and extended reliable performance. The Type 675 and 676 provide the same performance benefits as the Type 670, but ... chlorine, chlorine dioxide, and ferric chloride services. The Type 676, with an AM350 stainless steel bellows, is well-suited for ...