PTFE Bellow Seals

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MOQ : 01 Piece

PTFE Bellow Seals Specification

Hardness
Shore D 55-60

Theory
Dynamic sealing through axial movement of flexible bellow

Application
Chemical industry, pharmaceuticals, petrochemicals, food processing, corrosive and hazardous fluids

Style
Bellow type mechanical seal

Material
PTFE (Polytetrafluoroethylene)

Temperature
-60C to +220C

Pressure
Up to 10 bar

Speed
Up to 20 m/s

Function
To provide a leak-tight seal in corrosive media applications

Size
Standard shaft sizes from 12 mm to 100 mm

Structure
Single spring, non-clogging PTFE bellow

PTFE Bellow Seals Trade Information

Minimum Order Quantity
01 Piece

Payment Terms
Letter of Credit (L/C), Letter of Credit at Sight (Sight L/C), Telegraphic Transfer (T/T), Cheque

Supply Ability
200 Pieces Per Year

Delivery Time
200 Years

Sample Available
Yes

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Packaging Details
WOODEN CHARGE

Main Export Market(s)
Asia, Australia, Eastern Europe, Middle East, Western Europe, Africa, Central America, South America, North America

Main Domestic Market
All India

Certifications
ISO 9001-2008 MSME

About PTFE Bellow Seals

PTFE Bellow Seals
PTFE Bellow Seals are mounted outside and to prevent corrosion, when these encounter fluid, their components are prepared with chemically inert material like PTFE, Ceramic, Silicon carbide. The hardware is made with Haste-alloy-C, Alloy-20 etc.
Applications :Fertilizers Pesticide Pharmaceuticals Chemical processing Where special and heavy-duty seals are required
Specifications Shaft Diameter 18mm to 100mmPressure Unbalanced 10 bar Speed 2900 rpm Temperature 120oCFace Combination GFT, Silicon Carbide, Ceramic (99.5%) etc.

Engineered for Corrosive and Hazardous Applications

The PTFE Bellow Seal is purpose-built for use in highly corrosive and aggressive chemical environments. Its combination of PTFE bellows, advanced seal faces, and resistant secondary seals ensures reliable performance even with acids, solvents, and alkalis. Industries such as chemicals, pharmaceuticals, food processing, and petrochemicals depend on these seals for their robust resistance and leak-tight operation, supporting critical processes and safety requirements.

Versatile and Durable Design

Featuring a non-directional, bellow-type mechanical seal, this product operates flawlessly in both rotational directions and supports a wide range of standard shaft sizes. Its dynamic sealing mechanism, supported by materials like Hastelloy C and SS 316 for springs, guarantees stability under demanding pressures, temperatures, and speeds. Long operational life and minimal maintenance needs make these seals a cost-effective choice for various industrial applications.

Simplified Installation and Adaptable Connections

PTFE Bellow Seals are available in both cartridge and non-cartridge configurations and can be installed with threaded, flanged, or customized end connections. The single spring, non-clogging structure ensures quick installation and removal, reducing system downtime. Their compatibility with different piping standards and shaft sizes makes them suitable for a wide array of process setups in Indian industries.

FAQs of PTFE Bellow Seals:

Q: How are PTFE Bellow Seals installed, and what mounting options are available?

A: PTFE Bellow Seals are designed for straightforward installation and removal. They are available in both cartridge and non-cartridge configurations, allowing flexible mounting based on system requirements. Standard end connections include threads, flanges, or can be customized to fit specific applications.

Q: What types of media can PTFE Bellow Seals handle, and why are they suitable for aggressive chemicals?

A: These seals are engineered for highly corrosive and aggressive chemicals, including strong acids, alkalis, and solvents. Their PTFE construction, combined with chemically resistant secondary seals and robust seal face materials like carbon and silicon carbide, ensures excellent compatibility and long-term durability in harsh environments.

Q: When should I choose a PTFE Bellow Seal over other mechanical seal types?

A: Choose PTFE Bellow Seals when dealing with processes requiring superior chemical resistance, high temperature stability (-60C to +220C), and zero leakage operation. They are ideal for industries handling corrosive or hazardous fluids, especially where standard elastomeric or metal seals would degrade rapidly.

Q: Where are these seals most commonly used?

A: PTFE Bellow Seals find widespread use in the chemical industry, pharmaceuticals, petrochemical plants, and food processing facilities. They are essential for machinery and pumps handling corrosive or hazardous media requiring contamination-free, leak-tight performance.

Q: What is the process behind the dynamic sealing of PTFE Bellow Seals?

A: These seals employ a flexible bellow structure made from PTFE, which moves axially to maintain contact between the sealing faces. The single spring mechanism prevents clogging, while the dynamic movement accommodates shaft misalignment and thermal expansion without compromising seal integrity.

Q: How does using a PTFE Bellow Seal benefit my facilitys operation and maintenance routines?

A: PTFE Bellow Seals provide zero-leakage performance, minimizing environmental and product losses. Their resistance to fouling and the non-clogging design lower maintenance demands, and their easy installation allows for quick replacementreducing downtime and ensuring consistent facility operation.

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