Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
Custom FKM fabric-reinforced rubber diaphragms in cup-shaped, domed, convoluted, and flanged configurations. Black and red versions are shown for compatible pump, valve, regulator, and actuator assemblies. Dimensions, hardness, reinforcement construction, tolerances, tooling, samples, and packaging are available upon request.
FKM fabric-reinforced rubber diaphragms combine an FKM rubber working surface with fabric reinforcement. The pictured assortment includes black and red cup-shaped, domed, convoluted, and flanged profiles for compatible pumps, valves, regulators, and actuator assemblies. Exact dimensions, Shore A hardness, fabric construction, tolerances, pressure capability, and operating limits are available upon request.
Product Overview
This assortment contains several circular diaphragm geometries, including deep cups, shallow domes, recessed centers, annular convolutions, flat perimeter flanges, and versions with multiple mounting holes. Most components are black, with one red diaphragm shown. The FKM elastomer forms the flexible working surface, while fabric reinforcement helps control deformation and dimensional behavior during movement. Actual performance depends on the compound, reinforcement construction, geometry, and service conditions. Installation may involve clamping the outer flange between mating housings while the central section responds to pressure or mechanical input. Exact diameters, formed heights, thicknesses, hole patterns, fabric specifications, hardness, tolerances, and equipment compatibility must be confirmed for each diaphragm design.
Key Features
- FKM rubber construction for application-specific fluid and environmental compatibility
- Fabric-reinforced structure for controlled diaphragm deformation
- Assortment includes cup-shaped, domed, recessed, and convoluted profiles
- Flanged configurations with plain or perforated perimeter sections
- Black and red color configurations are represented
- Circular geometry for compatible pump, valve, regulator, and actuator housings
- Dimensions, profiles, hole patterns, reinforcement, and hardness can be customized
- Finished-part performance requires validation under the intended operating conditions
Product Specifications
| Specification | Details |
|---|---|
| Product Name | FKM Fabric-Reinforced Rubber Diaphragm |
| Material | FKM rubber with fabric reinforcement |
| Reinforcement Construction | Available upon request |
| Hardness | 50-70ShA |
| Color | Black and red as shown |
| Manufacturing Process | To be confirmed |
| Application | Compatible pump, valve, regulator, pressure-control, and actuator assemblies |
| Customization | Dimensions, profile, thickness, FKM compound, hardness, color, fabric construction, flange, hole pattern, tolerances, and packaging |
| MOQ | 200pcs |
| Tooling | Available upon request |
| Sample Availability | Available upon request |
| Lead Time | 30 days |
| Compliance Options | Available upon request |
Applications
FKM fabric-reinforced rubber diaphragms may be evaluated for compatible pumps, control valves, pressure regulators, diaphragm actuators, metering equipment, and fluid-control assemblies. The outer flange is typically retained by the mating housing, while the cup, dome, or convoluted section provides the required flexible movement. Fabric reinforcement can help regulate expansion and maintain the intended movement profile. Suitability for a particular assembly depends on the contacted fluid or gas, pressure differential, operating temperature, stroke, movement frequency, housing geometry, connection method, and clamping arrangement. Compatibility with a specific machine, pump, valve, regulator, or actuator must be confirmed before tooling and production.
Material and Performance Considerations
FKM is generally considered for applications involving oils, fuels, and selected chemicals, but the polymer name alone does not confirm compatibility with every medium. The exact FKM compound must be selected according to the fluid or gas, concentration, temperature, pressure, exposure time, cleaning process, and environmental conditions. The fabric material, weave, number of layers, orientation, and bonding system also affect flexibility, deformation, and dimensional stability. Shore A hardness, diaphragm thickness, and profile geometry influence movement and restoring behavior. Chemical resistance, pressure capability, fatigue resistance, leakage performance, and operating life must be validated using the finished diaphragm under representative service conditions.
Customization and Manufacturing
Custom FKM fabric-reinforced diaphragms can be evaluated from 2D drawings, 3D models, physical samples, or verified mating-component dimensions. Customizable details may include outside diameter, active diameter, formed height, wall thickness, cup depth, convolution profile, flange width, central opening, mounting-hole pattern, FKM compound, Shore A hardness, color, and fabric construction. The design review should identify the clamped area, active movement zone, pressure direction, available chamber space, sealing interfaces, and acceptable parting-line location. Tooling, prototype samples, manufacturing process, dimensional tolerances, MOQ, lead time, inspection requirements, and packaging are confirmed after the geometry and application conditions have been reviewed.
Quality and Sourcing Considerations
Before ordering, confirm the diaphragm dimensions, tolerances, FKM specification, Shore A hardness, fabric material, reinforcement layers, profile geometry, mounting features, quantity, and application conditions. Inspection requirements may include outside diameter, formed height, thickness, flange flatness, hole location, concentricity, surface condition, flash, contamination, and reinforcement alignment. Required pressure, leakage, movement-cycle, chemical-compatibility, or aging tests must be agreed before production. Prototype diaphragms should be installed in the intended assembly and evaluated for fit, clamping, clearance, movement, recovery, and leakage. Packaging requirements should prevent folding, compression, distortion, contamination, and flange damage.
Information Required for a Quote
- 2D drawing, 3D model, or physical sample
- Complete dimensions and tolerances
- Rubber material and Shore A hardness
- Operating temperature
- Contact media
- Pressure or mechanical load
- Installation method
- Required quantity and estimated annual volume
- Inspection and compliance requirements
- Packaging requirements
Frequently Asked Questions
What is the purpose of fabric reinforcement in an FKM diaphragm?
Fabric reinforcement helps control the diaphragm’s deformation and supports dimensional behavior during pressure or mechanical movement. Its actual effect depends on the fabric material, weave, layer quantity, orientation, bonding, rubber thickness, and diaphragm profile. These construction details must be selected for the intended assembly and validated through finished-part testing.
Is FKM compatible with every oil, fuel, or chemical?
No. FKM is available in different compound families, and compatibility varies with the exact medium, concentration, temperature, pressure, and exposure time. Cleaning agents and process conditions must also be considered. Provide complete service information so the compound can be evaluated for the intended application.
Can the diaphragm shape and flange configuration be customized?
Yes. Cup depth, dome height, convolution geometry, outside diameter, active diameter, flange width, central opening, mounting holes, thickness, and tolerances can be evaluated for customization. Mating-component dimensions or a complete technical specification are required to confirm installation fit and manufacturing feasibility.
Which Shore A hardness should be selected?
The required hardness depends on the diaphragm geometry, pressure differential, movement range, restoring-force requirement, contact media, temperature, and cycle conditions. No hardness has been confirmed for the pictured assortment. The selected hardness must be evaluated together with the FKM compound, thickness, and reinforcement construction.
Can an existing diaphragm be reproduced from a physical sample?
A physical sample can support an initial evaluation, but used diaphragms may be swollen, worn, compressed, or permanently deformed. Original dimensions, mating-housing information, FKM specification, fabric construction, hardness, critical tolerances, and operating conditions should also be provided whenever possible.
Are tooling, samples, MOQ, and lead time available?
Tooling, prototype samples, MOQ, and lead time are available upon request. They depend on the diaphragm size, profile complexity, FKM compound, fabric reinforcement, tolerance requirements, mold structure, inspection plan, testing requirements, packaging, order quantity, and estimated annual demand.
Request Product Evaluation
Provide the diaphragm drawing or sample, complete dimensions, mating-component information, FKM specification, fabric requirements, hardness, contact media, temperature, pressure, movement range, cycle frequency, required quantity, and inspection criteria. These details support evaluation of the compound, reinforcement, geometry, tooling, prototype requirements, production feasibility, validation, and packaging.
