Type 7800 Series is a modular, dualpressurized, back-to-back, O-ring pusher cartridge seal designed for mixer applications. Compact standard versions, including a bearing option, are available from 1 to 8 inches. Type 7848 is available as a liquid-lubricated or contacting dry-running version, whereas Type 7828 is a non-contacting gaslubricated design for high-purity applications. Where reduced barrier gas consumption is desirable, Type 7828GD is a hybrid design that offers a combination of non-contacting dry-running seal faces inboard and contacting dry running seal faces outboard.

The first choice for ultra-clean pharmaceutical and biotech applications, these seals meet Qualified Hygienic Design (QHD) requirements to enable the cleaning and sterilization of the productwetted parts with the seal in place (CIP, SIP). Different versions of Type 5280 Series are suitable for different vessel materials: Type 5280 for steel, Type 5281 for glass-lined and Type 5282 for special alloy vessels. Each type is available as liquid-lubricated, contacting dry-running or noncontacting gas-lubricated versions for high-purity applications. The special inboard seal design allows the application on top, side and bottom entry vessels. All versions are suitable for operation in potentially explosive atmospheres (ATEX cat. 1–3).

Type CK Series vessel seals are dual cartridge seals for top entry vessel and agitator equipment. While their standard versions are compliant to vessel seal standard DIN 28138, adaptations to non- DIN equipment are possible on request. As required by DIN, type variants are available without or with integrated radial bearing, as well as those applicable to glass-lined equipment. Seal type CK725, CK726 and CK736 are compact units with unbalanced, liquid-lubricated seal faces for general duties. Contacting dryrunning versions are available on request. Type CK728 and CK738 feature balanced faces for heavy duty conditions. Furthermore, both seal types are available as liquid-lubricated, contacting dry-running or non-contacting gaslubricated design, the latter for highpurity applications in pharmaceutical industries. All CK seals are compliant with European ATEX legislation.

Type 32 is a single, contacting dry-running, O-ring pusher component seal designed for pharmaceutical and chemical processing mixer applications. As no lubrication equipment is required, Type 32 seals are highly economic solutions. Type 32i features a unique noise reduction technology and Type 32D can be used on ATEX cat. 1 equipment without additional monitoring devices. Type 32GL is designed for corrosive mixer applications, specifically those found on glass-lined mixers and feature a composite sleeve. A dual back-to-back version can also be supplied.