Eaton FD31 — Enerpac-Interchange 10,000 psi Hydraulic Jack Coupler

The Eaton FD31 — Enerpac-Interchange 10,000 psi Hydraulic Jack Coupler is a specialty quick-disconnect coupling from Eaton's Aeroquip range. Thread-together 10,000 psi (700 bar) hydraulic jack coupler — direct interchange with Enerpac couplings and Parker 3000 Series. For portable hydraulic ram and jack service.

Working pressure to 700 bar (10153 psi) at the smallest body size, with minimum burst pressure of 1850 bar. Thread-to-Connect connection — valved (self-sealing poppet) variant.

Construction & features

• Interchange standard: Parker 3000 Series interchange
• Connection method: Thread-to-Connect
• Valving: Valved (Self-sealing Poppet)
• Direct interchange with Enerpac couplings
• Direct interchange with Parker 3000 Series
• 10,000 psi (700 bar) operating pressure
• Thread-together design
• Nitrile seals
• Aluminum dust caps and plugs
• NOTE: Connect/disconnect under pressure NOT permitted
• Interchanges with: Enerpac, Parker 3000 Series, Stucchi VEP-10 high-pressure

Available variants — specify in your RFQ

Indus quotes the full FD31 range; specify the configuration that matches your hose end and operating envelope. The Eaton part-number scheme is FD31-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, Dust Cap (aluminum), Dust Plug (aluminum)
• Body sizes: 1/4", 3/8"
• Body materials: Carbon Steel (zinc trivalent chromate plated)
• Seal materials: Nitrile
• Port thread types: Female NPT, Male NPT

Sample part numbers: FD31-1001-04-04, FD31-1002-04-04, FD31-1001-06-06, FD31-1002-06-06, FD31-1004-04, FD31-1005-04. The full part-number matrix is available on request — Indus will quote any standard configuration in the Eaton catalogue.

Performance

• Maximum operating pressure: 700 bar (10153 psi) at the smallest size; derates with diameter
• Minimum burst pressure: 1850 bar (26832 psi)
• Rated flow (largest size): up to 23 L/min
• Vacuum rating: 28 in./Hg
• Operating temperature range: -40°C to +100°C (varies by seal compound; specify in RFQ)

Applications

• Hydraulic jack service
• Portable hydraulic rams
• Bottle jacks and porta-power equipment
• High-pressure rescue tools
• Bridge and structural lifting equipment

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.