TEFLON BELLOW MECHANICAL SEAL

Teflon (PTFE) Bellow Mechanical Seals are specially engineered for highly corrosive and aggressive chemical environments. Designed with a non-metallic PTFE bellow, these seals offer exceptional resistance to acids, alkalis, and solvents, making them a go-to choice for industries such as pharma, chemical, food, and wastewater treatment. 

• Non-metallic PTFE bellows for maximum chemical resistance

• Single, unbalanced design ideal for moderate pressure

• Self-cleaning & non-clogging structure

• Eliminates corrosion risk due to metal-free wet parts

• Easy installation & replacement

• Compact & adaptable to most standard pumps

Materials can be tailored as per media compatibility & temperature demands. 

• Shaft Diameter Range: 18 mm – 100 mm (custom on request)

• Pressure Rating: Up to 8 bar

• Temperature Range: -30°C to +180°C

• Speed: Up to 3000 RPM

• Direction of Rotation: Bi-directional

• Acid & alkali dosing pumps

• Pharmaceutical blending & transfer systems

• Chemical processing units

• Effluent treatment plants (ETP)

• Food & beverage processing (hygienic models)

• API manufacturing plants

Q: Why choose PTFE bellows over metal bellows?
A: PTFE bellows are non-corrosive, flexible, and perform better with harsh chemicals where metal may degrade.

Q: Is it suitable for dry running?
A: No. Like most mechanical seals, PTFE bellow seals are not designed for dry operation and require lubrication by the media.

Q: Can it handle abrasive fluids?
A: Not recommended for highly abrasive media unless special face combinations are used (e.g., Tungsten vs. SiC).

• Cartridge style PTFE seals

• Single or double seal configurations

• OEM-specific or pump-specific variants

• Options with external pressurized barrier fluid

• Specialized in high-purity & corrosive media handling

• Custom-fit designs for pharma and chemical industries

• Wide range of face material combinations

• Proven field reliability & minimal maintenance

• Fast availability and support