BSPP BONDED SEAL – DOWTY WASHER FOR PARALLEL PORTS
- Combination steel and rubber washer for sealing BSPP male threads into flat-faced ports
- Also referred to as Dowty Washers or bonded seals
- Used under the hex of male BSPP adaptors, plugs, and banjo bolts
- Prevents hydraulic fluid leaks under pressure without thread sealant
- Compliant with ISO 1179 and widely used in British and international hydraulic systems
COMMON APPLICATIONS:
- Sealing BSPP threads into valve blocks, manifolds, cylinders and ports
- Field repair and replacement during hose changeouts or fitting upgrades
- Works with BSPP plugs, elbows, nipples, and banjo bolt assemblies
- Essential for leak prevention on ag, civil, and industrial equipment
COMMONLY FOUND ON (AND MORE):
BSPP (British Standard Pipe Parallel – ISO 1179)
- Brands: Massey Ferguson, Landini, JCB, Kubota, Valtra, Case IH, Mahindra and more
- Use: Forms a static seal between male BSPP fitting and flat-faced female port
Need help selecting the correct size bonded seal or assembling banjo systems? Reach out to our team for expert support or to request a workshop seal kit.
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