High Temperature Mechanical Seal | 50+ Years Expertise

Application Mechanical Seal For High Temperature

Petrochemical High-Temperature Pumping Applications

Mechanical seals designed for high-temperature applications are commonly employed in refinery charge pumps, hot oil circulation pumps and hydrocarbon transfer apparatus.
A welded metal bellows mechanical seal can accept significant thermal loading and will not fail as a result of elastomer loss.
This seal design allows companies to utilize modern hot, volatile and thermally unstable petroleum products in the petrochemical industry.

Chemical Processing Units That Experience Thermal Cycling

Chemical reactors, polymerization lines and acid/alkali processing have processes with rapid thermal cycles.
A welded bellows mechanical seal will provide consistent spring force throughout thermal cycling.
Traditional mechanical seals will lose elastomer elasticity or acquire a compression set, which is detrimental to the ongoing sealing performance of the seal.

High-Temperature Heat Transfer Fluid Applications

Applications that use synthetic heat transfer oils, thermal fluids or molten products require a mechanical seal that can endure sustained exposure to elevated temperatures.
The design of a welded bellows mechanical seal incorporates metal as the spring element to provide consistent force once again, free from elastomer constraints, as well as for improved resistance to deformation from creep.

High-Vacuum and UHV Thermal Processes

Welded metal bellows mechanical seals are excellent for use in a vacuum furnace, diffusion pumps, and high-temperature UHV (Ultrahigh Vacuum) applications.
Due to their lack of outgassing capabilities and the elimination of reliance on oily-based rubber components, these seals provide superior leakage prevention during thermal cycling, as well as help keep the equipment clean and withstand high internal stress due to thermal expansion.

Boiler Feedwater & Hot Condensate Pumps in Power Generation

Power stations are subjected to considerable thermal load on their equipment.
Welded metal bellows mechanical seals are designed for use with extremely high temperature, in particular, bellows type of seals for continuous operation in applications where hot condensate is recirculated. High temperatures of the working fluid can be sustained over long periods in boiler feedwater pumps and turbine auxiliary systems.