Type HTC high-temperature,corrosion-resistant, welded metal bellows seal is a unique advanced technology for reliably sealing fluids in harsh high temperature corrosive environments. It also provides superior face stability at elevated temperatures. Available with double-ply bellows for higher pressure applications.

Non-contacting, nonelastomer dual gas seal for high temperature applications. API 682 qualified. Piping Plan 74 is used to supply an inert gas to the seal for zero emissions. The seal is pressure balanced to ensure full reverse pressure containment capability. Metal bellows technology with inert graphite stationary secondary seals.

Dry-running metal bellows seal used for emission containment and for safety/ back-up of the primary seal. Available in low and high temperature versions. It is supplied in the outboard position of a dual/tandem cartridge assembly.

Robust low temperature edge-welded metal bellows seals. Available in various metallurgy including alloy C-276 in Type 670 for corrosive applications.

Type 285 seal is the first noncontacting, specially designed welded metal bellows seal to be applied to the toughest cryogenic applications. Type 285’s compact design fits the most popular cryogenic pumps without modification: both site-based and road tanker pumps. It is available in various seal cartridge arrangements: flanged and left- or right-hand threaded. The design and construction material meet the industry，safety requirements, allowing.Type 285 to seal common industrial liquid gases including oxygen, nitrogen and argon.