MECO HA Seal

MECO’s HA seal is highly versatile, with the ability to seal a wide range of products and processes. It is often used for applications with intermediate process temperatures or applications with abrasive products and can be an especially effective solution for sealing smaller shafted equipment experiencing shaft runout. The HA seal can be used on horizontal, inclined, and vertical shafts.

The HA model’s dynamic seal is formed between rotating, polymer seal faces (rotors) and stationary, stainless-steel seal faces (stators). Inside the seal’s solid, square housing, the polymer rotors are frictionally locked into rotation with the machine’s shaft by an elastomer drive ring. The HA seal’s stainless steel adjusting clamp squeezes the elastomer ring against the shaft, causing it to lengthen axially against the rotating seal faces to provide effective seal face loading. The sliding seal face is also pneumatically loaded by a compressed gas, typically air or an inert gas, which also acts to clear the rotating seal faces of product and debris. In addition, the purge gas helps isolate the process from the atmosphere.