Prolile

With more than years of successful application in high-temp chemical flows and oil refining industry, high-tem welded metal bellow series are mostly used in high-temp hydrocarbons, thermal transmission oil and high-temp chemical mediums, and applicable for rotary shaft based equipments such as centrifugal pumps and gear pumps.

Combination of materials

Pressure:≤20bar

Temperature: -75°C~ +425°C

                    -100°F一+800°F

Linear speed: 25mps

Welded metal bellow wave pieces in lieu of springs as more balanced compen-sated parts has small radial size without biockage, 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.

The inner diameter of bellow wave piece has a 45 bevel, which is useful for avoiding concentration of stress thus prolonging the use life, Flexible graphite are used for the stationary seals instead of rubber pieces,boosting the temperature-resisting performance as high as 425C. The sealing performances and tests of high-temp 69 series conform to C-level Specification of AP1682 Standard.