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Bonded Dowty Seal Washers – Hydraulic Sealing Rings

Metric & Imperial Sizes • BSP Threads • Packs of 5, 10, 25, 50 & 100

Metric & Imperial Sizes Nitrile Rubber Seal / Steel Outer High Pressure Hydraulic Use

Trusted UK Supplier
Bonded Dowty Seal Washers Metric & Imperial

Bonded Dowty Seal Washers provide reliable, leak-free sealing in hydraulic, pneumatic, and oil systems. Each washer combines a steel outer ring with a bonded Nitrile (NBR) rubber insert for self-centring performance under pressure. Available in Metric and BSP Imperial sizes and in packs of 5, 10, 25, 50, or 100 pieces.


✅ Key Features


⚙️ Technical Specifications

Specification Details
TypeBonded Dowty Seal Washer / Hydraulic Sealing Ring
MaterialSteel outer ring with Nitrile (NBR) rubber insert
Sizes (BSP Imperial)1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2"
Sizes (Metric)M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M26
Pack Quantities5 / 10 / 25 / 50 / 100 pieces per pack
Temperature Range-30°C to +120°C

Shipping:
Same working day dispatch if ordered before 15:30.
24-hour dispatch service available for a fee.
Returns:
30-day hassle-free returns (buyer pays return postage unless faulty).
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❓ Frequently Asked Questions

Q: What are these washers used for?
A: Designed to create a leak-free seal on hydraulic, pneumatic, oil & fuel fittings — ideal for BSP and metric threads.
Q: Are they reusable?
A: For best performance, bonded Dowty washers are recommended for single use only.
Q: Which size should I choose?
A: Select based on your fitting thread (BSP or Metric). All available sizes are shown in the drop-down options.

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