Application condition
This general industrial field includes chemical flows and oil refining industries with strong power of corrosion. Also widely used in water, sewage, strong acid and strong alkali conditions. Applies to the rotary shaft based equipments such as centrifugal pumps and compressors.

Combination of materials
Pressure: ≤20bar
Temperature:75℃~+200℃
-100oF~+400 oF
Linear speed:25mps

Features
Welded metal bellow wave pieces in lieu of springs as more balanced compensated parts has small radial size without blockage, can transmit particles with high viscidity and bigger proportion.
Non-impellent secondary seals can avoid the abrasion of stationary seals on shafts or shaft covers and the pre-invalidation of secondary seals.
Rotary airproof head has self- cleaning function that can throw off the particles remaining on the wave pieces.
The inner diameter of bellow wave piece has a 450 bevel, which is useful for avoiding concentration of stress thus prolonging the use life.