PTFE BELLOWS PUMP SEALS

Overview

Engineered to provide protection where chemical resistance is crucial, each John Crane PTFE bellows seal maintains the chemical inertness of all process-wetted materials.

This ensures superior sealing performance and helps to maximise the life of your equipment.

The metal components, including springs and clamp rings, are strategically positioned outside the pump seal chamber. This design isolates them from direct contact with process fluids, providing an effective shield against corrosive substances to operate effectively in environments exposed to highly corrosive chemicals, acids, caustics and chemically active organic compounds.

IN MORE DETAIL

Performance engineering behind PTFE bellows seals

Every surface of the PTFE bellows mechanical seal that comes into contact with the sealed liquid is constructed from chemically inert materials.

Metallic components are positioned outside the seal chamber and isolated from the process fluids. Smaller internal metal components are coated with a protective inert material for added longevity.

The flexible PTFE bellows seals provide maximum corrosion resistance, prevent seal face misalignment and compensate for shaft run-out to promote low-maintenance, long-life operation.

The friction-reducing design of the PTFE bellows mechanical seal allows smooth axial movement within the seal, reducing wear and extending the operational life of the mechanical seals.

This significantly lowers maintenance requirements and enhances system reliability. These seals deliver leak resistance, improving process containment and supporting sustainability by reducing environmental risks.