Eaton FD86 — 5,000 psi Dry Break Thread-to-Connect High-Impulse Hydraulic Coupler

The Eaton FD86 — 5,000 psi Dry Break Thread-to-Connect High-Impulse Hydraulic Coupler is a hydraulic quick-disconnect coupling from Eaton's Aeroquip range. Thread-together steel high-impulse 5,000 psi dry-break coupler with Acme threads and tubular valve — for mining and high-impulse hydraulic circuits. Connect/disconnect against pressures to 750 psi.

Working pressure to 345 bar (5004 psi) at the smallest body size, with minimum burst pressure of 1034 bar. Thread-to-Connect connection — dry break variant.

Construction & features

• Connection method: Thread-to-Connect
• Valving: Dry Break
• Connect-under-pressure capability — couplings can be mated against trapped residual pressure
• Dry-break design — virtually no fluid loss at disconnect
• 5,000 psi (345 bar) maximum working pressure
• High impulse capability — thread-together design with Acme threads prevents galling
• Connect/disconnect against pressure to 750 psi
• Teflon back-up rings + secondary metal-to-metal sealing for high-impulse durability
• Wing or hex-nut configurations
• Optional steel bulkhead flange
• Interchanges with: Parker FH high-impulse, Stucchi A-HP

Available variants — specify in your RFQ

Indus quotes the full FD86 range; specify the configuration that matches your hose end and operating envelope. The Eaton part-number scheme is FD86-XXXX-AA-BB (series, half/material code, port thread size in 16ths of an inch, nominal coupling size in 16ths of an inch).

• Coupling halves: Male, Female, Complete Set, Dust Cap/Plug, Bulkhead Flange (steel)
• Body sizes: 1", 1-1/4"
• Body materials: Carbon Steel (zinc trivalent chromate plated)
• Seal materials: Buna-N, with Teflon back-up rings
• Port thread types: Female NPT, Female SAE O-ring

Sample part numbers: FD86-1000-16-16, FD86-1001-20-20, FD86-1002-16-16. The full part-number matrix is available on request — Indus will quote any standard configuration in the Eaton catalogue.

Performance

• Maximum operating pressure: 345 bar (5004 psi) at the smallest size; derates with diameter
• Minimum burst pressure: 1034 bar (14997 psi)
• Rated flow (largest size): up to 284 L/min
• Vacuum rating: 28 in./Hg
• Operating temperature range: -40°C to +100°C (varies by seal compound; specify in RFQ)

Applications

• Mining equipment hydraulics
• High-impulse hydraulic and fluid transfer
• Heavy industrial fluid power circuits
• Bulkhead-mounted high-pressure hose feed-through

How to order

Confirm (a) the exact Eaton part number you require, or (b) the configuration parameters: coupling half (male / female / complete set / repair kit / dust cap), body size, port thread type and designation, seal compound, body material. Indus will quote ex-Eaton with full mill certification, NACE / ABS / Lloyd's options on request, and air-freight or sea-freight options to UAE / GCC. Standard lead time 14 days from order; in-stock items ship same week.

Companion products

Indus also stocks the matching dust caps, dust plugs, and seal repair kits for this series — ask for them on the same RFQ. For hose assemblies terminated with this coupler, request a complete hose-end assembly quote and we will supply the assembly tested at 1.5× working pressure with witness-test certificate.