Moulded Flange Rubber
Moulded flange rubber is a custom-formed rubber component designed for sealing, cushioning and protecting flanged pipework, machinery connections and industrial equipment. It can be manufactured to match specific flange dimensions, bolt-hole arrangements and operating conditions.
Suitable for marine piping, pumps, valves, tanks and general industrial systems.
Key Features
- Precision-moulded rubber construction
- Manufactured to suit specific flange dimensions
- Provides effective sealing and cushioning
- Absorbs minor vibration and movement
- Helps prevent leakage at flange connections
- Available with moulded bolt holes and profiles
- Different rubber compounds and hardnesses available
- Suitable for replacement and custom-fabrication requirements
Typical Applications
- Marine piping systems
- Pump suction and discharge connections
- Valve flange connections
- Tank inlet and outlet flanges
- Flexible pipe connectors
- Expansion-joint components
- Ducting and ventilation systems
- Water-treatment equipment
- Chemical-processing systems
- Machinery and equipment connections
Available Configurations
| Configuration | Typical Use |
|---|---|
| Full-Face Flange Rubber | Covers the complete flange face, including bolt holes |
| Ring-Type Flange Rubber | Seals within the flange bolt circle |
| Raised-Face Profile | Matches raised-face flange arrangements |
| Moulded-Lip Seal | Provides additional sealing around the internal diameter |
| Reinforced Flange Rubber | Used where additional strength or dimensional stability is required |
| Custom-Moulded Profile | Produced according to a drawing or physical sample |
Material Options
| Material | General Suitability |
|---|---|
| Natural Rubber | Water, abrasion and general-purpose applications |
| NBR | Petroleum oils, fuel and lubricants |
| EPDM | Water, weather, ozone and selected chemical applications |
| Neoprene | Weathering and general industrial service |
| Silicone | High- and low-temperature applications |
| Viton/FKM | Fuels, oils, heat and aggressive chemical environments |
Available Options
| Property | Available Options |
|---|---|
| Flange Standard | JIS, ANSI/ASME, DIN, BS or custom |
| Size | Standard nominal bore or custom dimensions |
| Pressure Class | Selected according to the piping system |
| Hardness | Various Shore A grades |
| Reinforcement | Plain rubber, fabric-inserted or metal-reinforced |
| Colour | Subject to the selected rubber compound |
| Bolt Holes | Moulded, punched or drilled |
| Supply | Individual pieces.Wrap, bine and project quantities |
| Customisation | Samples, drawings or site measurements |
Product Benefits
- Conforms to flange faces for improved sealing
- Helps compensate for minor surface irregularities
- Reduces vibration transmitted through connections
- Protects mating surfaces from direct contact
- Can be produced for obsolete or non-standard equipment
- Suitable for maintenance, retrofit and new installations
Selection Information Required
Please provide:
- Flange standard and nominal size
- Outside and inside diameters
- Pitch-circle diameter
- Number and diameter of bolt holes
- Required thickness
- Operating pressure and temperature
- Fluid or chemical being handled
- Required rubber material and hardness
- Reinforcement requirements
- Drawing, photographs or existing sample
- Certification or testing requirements
