Cartridge mechanical seal for agitators
CK 736 / 736D John Crane

Vessel & agitator seals of the CK 736 range are designed to comply with DIN 28138 and DIN 28159, and are factory tested cartridge seal units.

They are used as double seals with integrated bearing to seal glasslined agitators and prevent emission from getting into the environment. The seals are available in a conventional liquid lubricated design or as a contacting dry running model.

In addition to the standard seal shown in this brochure, John Crane offers custom designed seals to suit individual user/OEM requirements.

CK 736 is a liquid lubricated design used in traditional wet seal arrangements, with a process liquid between the seals to lubricate and remove generated heat.

CK 736D is a gas lubricated fully contacting design that uses a specially developed carbon allowing operation on a dry nitrogen sealant without a humidifier.

Design Features

* Reversed pressure design
* Liquid lubricated or contacting dry running
* Suitable for areas where there is a risk of explosion.
* Certificates of Conformity according to 94/9/EC, Category 3, 2 or 1 can be provided
* According to DIN 28138 part 2 & 3, for shaft ends acc. to DIN 28159
* With bearing for optimal running precision
* Standard materials for a wide application range
* Special materials on request