Eaton FD15 — Hydraulic Oil Sampling Valve

The Eaton FD15 — Hydraulic Oil Sampling Valve is a diagnostic quick-disconnect coupling from Eaton's Aeroquip range. In-line oil sampling valve for system fluid sampling without shutdown — sampling completed in under one minute with no fluid contamination.

Working pressure to 21 bar (305 psi) at the smallest body size, with minimum burst pressure of 83 bar. Thread-to-Connect connection — sampling valve variant.

Construction & features

• Interchange standard: MIL-V-81940/2-1 (1/4" NPTF version)
• Connection method: Thread-to-Connect
• Valving: Sampling Valve
• In-line sampling without system shutdown
• No fluid contamination during sample
• 500-micron particle restriction
• 10 in-lbs maximum operating torque
• Operating temperature -65°F to +275°F (-53°C to +135°C)
• 1/4" NPTF version (FD15-1000-04) qualified to MIL-V-81940/2-1
• Two pressure ranges: 50-300 psi and 0-50 psi
• Flow rate 100-1,500 mL/min (per MIL spec at 50-300 psi)
• Interchanges with: MIL-V-81940/2-1 qualified product

Available variants — specify in your RFQ

Indus quotes the full FD15 range; specify the configuration that matches your hose end and operating envelope. The Eaton part-number scheme is FD15-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: Single-piece valve (no separate male/female)
• Body sizes: 1/8" NPT, 1/4" NPT, 7/16-20 SAE O-ring
• Body materials: Corrosion-resistant plated steel with brass internal components
• Seal materials: Buna
• Port thread types: Male Pipe Thread (NPT), Male SAE O-ring Thread

Sample part numbers: FD15-1000-02, FD15-1000-04, FD15-1002-04, FD15-1026-04, FD15-1025-04. The full part-number matrix is available on request — Indus will quote any standard configuration in the Eaton catalogue.

Performance

• Maximum operating pressure: 21 bar (305 psi) at the smallest size; derates with diameter
• Minimum burst pressure: 83 bar (1204 psi)
• Rated flow (largest size): up to 1.5 L/min
• Operating temperature range: -53°C to +135°C (varies by seal compound; specify in RFQ)

Applications

• Engine oil sampling
• Lubricating oil analysis
• Transmission and hydraulic fluid sampling in mobile equipment
• Military, construction, mining and trucking equipment fluid analysis
• Stationary equipment fluid analysis

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.