9900 Bonded Seal Buna-N for BSPP Fittings | British Pipe Parallel Seals
Product Description:
The 9900 Bonded Seal Buna-N for BSPP Fittings collection is designed to provide reliable face sealing for British Standard Pipe Parallel (BSPP) threaded ports. Because BSPP threads do not seal on the threads themselves, bonded seals are required to maintain pressure integrity in hydraulic systems.
These seals combine a carbon steel outer ring with a Buna-N rubber sealing element, creating a robust, pressure-resistant seal that performs reliably in oil, fuel, and water-based hydraulic systems.
Design & Material Overview
- Carbon steel outer ring for structural support
- Buna-N (Nitrile) elastomer sealing face
- Designed to match BSPP 55-degree thread geometry
- Prevents extrusion under pressure
- Provides consistent sealing without thread sealants
Pressure & Performance Characteristics
- Designed for high-pressure hydraulic systems
- Maintains seal integrity under vibration
- Suitable for pressure cycling environments
- Prevents leakage in parallel thread ports
Industries & Use Cases
- Industrial hydraulics
- Mobile equipment
- Agricultural machinery
- Construction equipment
- International OEM hydraulic assemblies
Applications
- Sealing male BSPP fittings
- BSPP port sealing in manifolds
- BSPP adapters and plugs
The 9900 series is commonly paired with male BSPP fittings, plugs, and adapters used in international hydraulic equipment.