Custom Silicone Diaphragms & Precision Valve Membranes
Temco Rubber is a specialized silicone diaphragm manufacturer and supplier of high-performance elastomeric membranes for pumps, valves, regulators and critical fluid-control systems. Our custom silicone diaphragms are engineered for high flex-life, thermal stability, precise pressure response and reliable dynamic sealing.
High-Performance Custom Silicone Diaphragm Solutions
The performance of a pump, valve or regulator often depends on the mechanical integrity of its diaphragm. Temco Rubber develops custom silicone diaphragms around defined requirements for pressure, stroke, temperature exposure and chemical compatibility.
From prototype development through high-volume production, our engineering approach focuses on repeatable geometry, uniform wall thickness and long-term fatigue performance.
Both homogeneous and reinforced constructions can be developed depending on operating pressure, movement and structural requirements.
Core Diaphragm Capabilities
Designed for repeated dynamic movement and millions of operating cycles.
Controlled membrane thickness for predictable deflection and stress distribution.
Dacron, Nylon and Nomex reinforcement for elevated differential pressures.
Silicone overmolded directly onto compatible metal or plastic components.
Custom Molded Silicone Diaphragm Configurations
Diaphragm geometry can be engineered around the required stroke length, pressure range, sensitivity and available assembly space.
Rolling Diaphragms
Designed for long-stroke applications requiring low friction, high sensitivity and controlled rolling movement between piston and cylinder surfaces.
Convoluted Diaphragms
Corrugated membrane geometry allows significant travel while helping maintain a relatively consistent effective pressure area.
Flat Disc Membranes
Simple precision membranes for short-stroke sensing, low-pressure regulation and compact valve applications.
Dish-Shaped Diaphragms
Application-specific curved membranes optimized for defined pressure-to-deflection relationships in actuators and control valves.
Diaphragm Reinforcement & Structural Compositions
Material architecture can be adapted according to pressure, stroke, tensile loading and assembly requirements.
Homogeneous Silicone
Manufactured entirely from silicone rubber for applications where flexibility, purity and unrestricted membrane movement are more important than structural reinforcement.
Fabric-Reinforced Diaphragms
Dacron, Nylon or Nomex reinforcement can be integrated into the silicone membrane to increase tensile stability and reduce elongation under high differential pressure.
Silicone-to-Metal & Plastic Bonding
Silicone can be molded directly onto compatible rigid inserts to simplify assembly and produce an integrated, permanently bonded sealing component.
Industrial Silicone Diaphragm Applications
Custom silicone membranes are used wherever accurate fluid, gas or pressure control depends on a flexible sealing element.
Fluid & Gas Control Systems
Pressure regulators, pneumatic valves and hydraulic actuators use silicone diaphragms to accurately modulate pressure and isolate control chambers.
Pumps & Compressors
High-cycle membranes for diaphragm pumps, vacuum systems and dosing equipment where fatigue resistance and elastic recovery are essential.
Medical & Sanitary Devices
Medical and food-grade silicone diaphragms for ventilators, anesthesia equipment and sanitary valves requiring clean, high-purity elastomeric components.
Precision Silicone Rubber Diaphragm Manufacturing
Uniform wall thickness, controlled flash and repeatable geometry are central to reliable diaphragm performance.
1. Application & DFM Review
Geometry, stroke, pressure, hardness and reinforcement requirements are evaluated before tooling development.
2. Precision Tooling
Our high-precision silicone tooling is designed to minimize parting-line interference and maintain controlled membrane thickness.
3. Compression or LSR Molding
Compression molding supports robust HCR diaphragm production, while Liquid Silicone Rubber injection is especially effective for micro-diaphragms and thin-wall geometries.
4. Inspection & Validation
Finished membranes are inspected for dimensional consistency, surface defects, reinforcement integrity and sealing-critical features.
Material Science & Operating Range
Silicone compound selection allows diaphragm behavior to be tuned around pressure response, flexibility and operating temperature.
Dynamic Fatigue & Hysteresis Control
A diaphragm operates under repeated flexing, which makes dynamic fatigue resistance one of the most important material characteristics in long-term service.
Our compound selection and membrane design approach focuses on maintaining elastic recovery while reducing permanent set and performance drift during repeated cycling.
Reinforcement architecture can also be optimized where pressure loading or membrane elongation would otherwise reduce dimensional stability.
Diaphragm Quality Assurance & Testing
Performance validation focuses on dynamic life, material integrity and leak-free operation.
Cycle Life Testing
Repeated mechanical movement is simulated to evaluate durability and expected diaphragm service life.
Tear Resistance Testing
Elastomer strength is evaluated to understand resistance to tear initiation and propagation during operation.
Pressure Leak Testing
Bonded and reinforced diaphragms can be checked for leakage under application-specific pressure conditions.
Your Industrial Silicone Diaphragm Supplier
Temco Rubber supports custom diaphragm projects from initial engineering review through tooling, validation and recurring production.
DFM Engineering
Geometry review to improve moldability, repeatability and long-term membrane performance.
Custom Tooling
Application-specific tooling for flat, convoluted, rolling and reinforced diaphragm designs.
Prototype to Production
Support from initial sample validation through high-volume recurring OEM manufacturing.
Material Optimization
Hardness, reinforcement and silicone grade selected according to mechanical and environmental conditions.
Frequently Asked Questions
Technical information about reinforced membranes, LSR molding and temperature performance.
Need a Custom Silicone Diaphragm?
Send us your CAD drawing, diaphragm geometry, pressure range, required stroke, temperature conditions, material requirements and expected production volume. Our engineering team can review your project and recommend the appropriate geometry, silicone grade and reinforcement architecture.
Contact Our Diaphragm Engineers