
Diaphragms
High-Performance Diaphragm Solutions When Reliability Is Non-Negotiable
The Rubber Group specializes in custom-engineered rubber and fabric reinforced diaphragms that deliver precise, consistent performance in your most demanding fluid control, sensing, and actuation applications. With over 30 years of elastomer manufacturing excellence, our team designs and produces diaphragms that maintain integrity under extreme pressure cycles, aggressive media exposure, and challenging operating conditions – ensuring your systems function flawlessly when failure is not an option.
Premium Elastomer Compounds
- EPDM - Excellent resistance to water, steam, and chemicals with superior flex properties for water management and food processing applications
- Nitrile (NBR) - Outstanding oil and fuel resistance for pneumatic actuators and hydraulic applications with hydrocarbon exposure
- Neoprene - Balanced resistance to moderate chemicals, oils and weathering for general industrial applications
- FKM (Viton®) - Exceptional chemical resistance and high-temperature performance up to 500°F for aggressive chemical environments
- Silicone - Wide temperature range (-120°F to +450°F) with excellent flexibility and biocompatibility for medical and food applications
- HNBR - Enhanced heat, oil and chemical resistance for demanding applications in elevated temperatures
- Butyl - Superior gas impermeability for vacuum applications and excellent resistance to ketones and alcohols
- FFKM (Perfluoroelastomer) - Ultimate chemical resistance for the most aggressive media where other elastomers fail
- And MORE!


Fabric Reinforcement Options
- Polyester - Excellent dimensional stability and resistance to stretching under pressure
- Nylon - Superior strength and exceptional fatigue resistance for high-cycle applications
- Aramid (Kevlar®) - Unmatched strength-to-weight ratio for extreme pressure applications
- Aramid (Nomex®, Conex®) – High temperature applications with excellent flex characteristics
- Fiberglass - Outstanding dimensional stability and thermal resistance for high-temperature operation
- Cotton - Excellent rubber bonding characteristics and flexibility for specialized applications
- Hybrid Fabrics - Custom-engineered reinforcement combinations for optimized performance
- Multi-Ply Constructions - Layered fabric configurations for extreme pressure and exceptional service life
- Specialized Weaves - Application-specific fabric patterns for balanced strength and flexibility
Performance Characteristics
High-Flex Formulations - Engineered for millions of cycles without cracking or fatigue
Low Hysteresis Designs - Minimized energy loss and heat build-up during cycling
Pressure-Optimized Constructions - Configurations for pressure ranges from vacuum to 1000+ PSI
Chemical-Resistant Compounds - Specialized formulations for specific media compatibility
FDA & USP Class VI Materials - Compliant compositions for food, beverage, and medical applications
Temperature-Resistant Options - Materials optimized for extreme heat or cold environments
Low-Friction Surfaces - Specialized finishes for improved dynamic response
Custom Profile Geometries - Molded features including beads, lips, and reinforced mounting zones

Industry-Specific Diaphragm Applications
Fluid Control & Pump Systems
Our precision-engineered diaphragms deliver reliable performance in critical fluid handling applications:
Diaphragm Pumps - Robust, long-life diaphragms for AODD (air-operated double diaphragm) pumps handling chemicals, slurries, and sanitary fluids
Metering Pumps - High-precision diaphragms for accurate chemical dosing and injection system
Valve Actuators - Responsive diaphragms for pneumatic valve control in process industries
Water Management - Durable solutions for water treatment, filtration, and residential water systems
Pressure Regulators - Sensitive diaphragms providing precise pressure control in gas and liquid system
Pulsation Dampeners - Flexible barriers absorbing pressure spikes in hydraulic and process systems
Process Industry Applications
Engineered solutions for chemical processing, oil & gas, and industrial production:
- Chemical Processing - Chemical-resistant diaphragms for aggressive media handling and corrosive environments
- Oil & Gas Equipment - High-pressure diaphragms for wellhead control, pipeline regulation, and refinery applications
- Industrial Automation - Precise response diaphragms for pneumatic controls and positioning systems
- Compressor Components - Durable diaphragms for gas handling and compression equipment
- Bulk Material Handling - Robust designs for cement, powder, and granular material processing
- Tank Protection - Rupture-resistant breather diaphragms preventing over/under pressurization
Medical & Pharmaceutical
Ultra-clean diaphragm solutions for healthcare and life science applications:
- Medical Devices - USP Class VI diaphragms for diagnostic equipment and therapeutic devices
- Pharmaceutical Production - High-purity barriers for drug manufacturing and processing
- Laboratory Equipment - Precision diaphragms for analytical instruments and research apparatus
- Respiratory Equipment - Life-critical components for ventilators and breathing apparatus
- Dialysis Systems - Reliable fluid control in renal therapy equipment
- Sterilization Equipment - Chemical and heat-resistant diaphragms for autoclave and sterilization systems
Food & Beverage Processing
Sanitary diaphragm solutions meeting stringent food safety requirements:
- Beverage Processing - FDA-compliant barriers for dairy, juice, and carbonated beverage production
- Food Manufacturing - Sanitary diaphragms for ingredient handling and processing systems
- Brewing & Distilling - Specialized designs for fermentation, filtration, and process control
- CIP/SIP Systems - Cleaning-compatible diaphragms withstanding sanitizing agents and steam
- Filling Equipment - Precision fluid control for packaging and bottling operations
- Homogenizers & Mixers - High-pressure applications for food texture development
Instrumentation & Sensing
Sensitive diaphragms for measurement and control applications:
- Pressure Transducers - Ultra-responsive barriers for accurate pressure measurement
- Flow Controls - Precise diaphragms regulating fluid movement in process systems
- Level Indicators - Reliable detection of fluid levels in tanks and vessels
- Pneumatic Controls - Signal transmission diaphragms for pneumatic control systems
- Differential Pressure Devices - Specialized designs for measuring pressure differences
- Environmental Monitoring - Weather-resistant barriers for outdoor sensing applications