SEALING SPACE OPTION

The variability of the sealing chamber for SPIRAM pumps lies in the design of the rear pump plate, which is ready for the installation of different types of seals. Different versions of mechanical seals can be used independently of their manufacturers.

• Gland/soft packing (without/with lantern ring),
• Single mechanical seal (single-spring, single- component,..),
• Cartridge mechanical seal (single, dual, back-to-back, double tandem),
• Special packed stuffing box (polymer based seal rings, without/with lantern ring),
• It is also possible to use an API Plan to prevent abrasion damage to the mechanical seal or to eliminate potential leakages.

The seal is protected in two ways. The conical shape of the seal chamber (pulp&paper standard) allows the accumulated air to be naturally discharged towards the pump‘s outlet. Thanks to this technical solution, the pumped fluid always comes into contact with the seal to lubricate or cool it. The helical groove discharges sludge and solid particles from the seal to the pump outlet in a simple way. The rear part of the impeller or the follower rotates and imparts a proportion of its kinetic energy to the liquid present in the sealing chamber. The helical groove is oriented so that the impurities are transported towards the pump outlet by rotating liquid. In this way, the abrasive action of impurities on the sealing faces of the mechanical seal is eliminated, and their service life is significantly extended.

Simple mechanical seal without the need for external adjustment

Standard seal chamber is big enough to seat almost all the cartridges on the market.

The heating or cooling chamber can be easily installed on all SPIRAM pumps.

To use combined with PLAN 11 from the discharge or PLAN 32 from external circuit. Also available in execution without shaft sleeve.

To use with hot or over-heated liquids and in combination with external heat exchanger - PLAN 23.

Quench mainly used for steam barrier.

Combined seal, for dry running without auxiliary liquids or for discontinuous flushing. Safety barrier for hazardous liquids or Atex zones.

Single seal for dirty or viscous liquids. its position, close to the impeller, facilitates lubrication.

Gland packing seal with barrier hydraulic ring and flushing. Also available in execution without shaft sleeve.

Double tandem mechanichal seal. PLAN 52. Also available flushing connection for the pump side seal.

Double back to back seal. PLAN 53 - PLAN 54.

Double back to back seal with pumping ring. PLAN 53 - PLAN 54.

Self-lubricated seal rings suitable for clean and viscous liquids. Also available with ceramic coated shaft sleeve.

As «V» type, but with safety gland packing quench and heated chamber.

Chamber flooding primarily designed for steam barrier seals.