PTFE Bonded Diaphragm Solution for High Temperature Industrial Pumps

Client’s Issue

A leading industrial pump manufacturer was facing premature diaphragm failures in pumps used for handling high temperature and chemically aggressive fluids. Frequent breakdowns were causing operational downtime and increased maintenance costs.

The Challenge

The existing elastomer diaphragms were unable to withstand:

• Continuous exposure to corrosive chemicals
• Operating temperatures above 180°C
• Cyclic pressure loading in continuous duty pumps
• Strict leakage control requirements

The client required a high temperature, chemical resistant diaphragm solution with improved service life and structural integrity.

Application & Operating Conditions

• Industry: Chemical Processing
• Temperature Range: 180°C – 220°C
• Media: Corrosive solvents and reactive chemicals
• Pressure: Continuous cyclic load
• Application: Industrial fluid transfer pumps

The solution needed to maintain flexibility while ensuring long term chemical compatibility.

Arvico’s Solution

Arvico engineered a PTFE-bonded rubber diaphragm combining:

• A chemically inert PTFE layer for direct media contact
• A high performance elastomer backing for flexibility and fatigue resistance
• Advanced bonding technology to prevent failure

This hybrid construction delivered both chemical resistance and dynamic sealing performance, ideal for demanding pump applications.

Manufacturing & Quality Approach

• Precision compression moulding for uniform thickness
• Controlled PTFE to elastomer bonding process
• Batch wise material traceability
• Dimensional and bond integrity testing
• Export grade quality standards

Each diaphragm was tested to ensure performance under high temperature and pressure conditions.

Results & Performance Improvements

• 2–3x increase in diaphragm service life
• Reduced maintenance downtime
• Improved sealing reliability at elevated temperatures
• Lower total cost of ownership

The PTFE bonded diaphragm significantly enhanced pump performance in aggressive industrial environments.

Outcome

By partnering with an experienced PTFE bonded diaphragm manufacturer, the client achieved a durable, high performance industrial pump sealing solution designed for long term reliability in high temperature chemical applications.