Eaton FD99 — High-Pressure Flush Face ISO 16028 Hydraulic Coupler

The Eaton FD99 — High-Pressure Flush Face ISO 16028 Hydraulic Coupler is a hydraulic quick-disconnect coupling from Eaton's Aeroquip range. High-pressure ISO 16028 flush-face coupler — push-to-connect with working pressures to 6,090 psi (420 bar) at 1/4" size. Combines ISO 16028 global interchangeability with high-impulse pressure ratings exceeding the standard.

Working pressure to 420 bar (6092 psi) at the smallest body size, with minimum burst pressure of 1260 bar. Push-to-Connect connection — flush face (no-spill) variant.

Construction & features

• Interchange standard: ISO 16028
• Connection method: Push-to-Connect
• Valving: Flush Face (No-Spill)
• Flush-face / no-spill design — minimal fluid loss and air inclusion at disconnect
• Meets ISO 16028 dimensional requirements
• Pressure ratings exceed ISO 16028 standard — to 6,090 psi at 1/4" size
• Push-to-connect latching
• Dual flush-face valving — non-spill design
• Anti-extrusion Teflon seal
• Safety sleeve lock
• Nitrile/Teflon seal compound for high-impulse durability
• Interchanges with: Parker FEM-HP (ISO 16028), Faster CVE high-pressure ISO 16028, Stucchi APM-HP

Available variants — specify in your RFQ

Indus quotes the full FD99 range; specify the configuration that matches your hose end and operating envelope. The Eaton part-number scheme is FD99-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
• Body sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 1", 1-1/4", 1-1/2"
• Body materials: Carbon Steel (zinc trivalent chromate plated)
• Seal materials: Nitrile/Teflon (additional materials on request)
• Port thread types: Female NPT, Female BSP, Female SAE O-ring

Sample part numbers: FD99-1001-04-04, FD99-1002-12-12, FD99-1006-20-16. The full part-number matrix is available on request — Indus will quote any standard configuration in the Eaton catalogue.

Performance

• Maximum operating pressure: 420 bar (6092 psi) at the smallest size; derates with diameter
• Minimum burst pressure: 1260 bar (18275 psi)
• Rated flow (largest size): up to 288 L/min
• Vacuum rating: 28 in./Hg
• Operating temperature range: -40°C to +100°C (varies by seal compound; specify in RFQ)

Applications

• High-impulse hydraulic fluid transfer
• Agricultural equipment requiring high-pressure flush face
• Construction equipment and implements
• High-pressure ISO 16028 retrofit applications

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.