Hydraulic Oil Sampling Valve Coupler

In-line oil sampling valve for system fluid sampling without shutdown — sampling completed in under one minute with no fluid contamination.
Key features
- Series: QC-OS
- Interchange Standard: MIL-V-81940/2-1 (1/4" NPTF version)
- Application Class: Diagnostic
- Valving: Sampling Valve
- Connection Method: Thread-to-Connect
- Maximum Operating Pressure: 21 bar
- Series
- QC-OS
- Interchange Standard
- MIL-V-81940/2-1 (1/4" NPTF version)
- Application Class
- Diagnostic
- Valving
- Sampling Valve
- Available Body Sizes
- 1/8" NPT, 1/4" NPT, 7/16-20 SAE O-ring
- Connection Method
- Thread-to-Connect
Product description
The Hydraulic Oil Sampling Valve Coupler is a diagnostic quick-disconnect coupling in the Indus QC-OS 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
- Interchanges with: MIL-V-81940/2-1 qualified product, Eaton FD15
Available variants — specify in your RFQ
Indus supplies the full QC-OS range. Specify the configuration that matches your hose end and operating envelope and we will quote against it.
- 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
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)
Replacing an existing coupling?
This coupler is dimensionally interchangeable with Eaton FD15, and with MIL-V-81940/2-1 qualified product. If you are matching an existing fleet, quote the coupling you are replacing on the RFQ and we will confirm the mating half before you order.
How to order
Confirm the coupling half (male / female / complete set / dust cap), body size, port thread type and size, seal compound and body material. Indus quotes with material certification on request, and air-freight or sea-freight to the UAE and wider GCC. Standard lead time 14 days from order; stocked configurations ship the same week.
Companion products
Indus also supplies the matching dust caps, dust plugs and seal repair kits for this series — add them to the same RFQ. For a hose assembly terminated with this coupler, request a complete assembly quote and we will supply it tested at 1.5× working pressure with a witness-test certificate.
Identification
| Parameter | Value |
|---|---|
| Series | QC-OS |
| Interchange Standard | MIL-V-81940/2-1 (1/4" NPTF version) |
| Application Class | Diagnostic |
| Valving | Sampling Valve |
Variants
| Parameter | Value |
|---|---|
| Available Body Sizes | 1/8" NPT, 1/4" NPT, 7/16-20 SAE O-ring |
| Available Body Materials | Corrosion-resistant plated steel with brass internal components |
| Available Seal Materials | Buna |
| Available Port Thread Types | Male Pipe Thread (NPT), Male SAE O-ring Thread |
| Available Coupling Halves | Single-piece valve (no separate male/female) |
Construction
| Parameter | Value |
|---|---|
| Connection Method | Thread-to-Connect |
| Flush Face / No-Spill | no |
| Connect Under Pressure | no |
Performance
| Parameter | Value |
|---|---|
| Maximum Operating Pressure | 21 bar |
| Minimum Burst Pressure | 83 bar |
| Rated Flow (Largest Size) | 1.5 L/min |
| Vacuum Rating | 0 in./Hg |
| Operating Temperature Min | -53 °C |
| Operating Temperature Max | 135 °C |
Compliance
| Parameter | Value |
|---|---|
| Interchanges With (Competitor Brands) | MIL-V-81940/2-1 qualified product, Eaton FD15 |
Shipping & lead time
What is the Indus QC-OS range used for?▾
What is the maximum working pressure?▾
What sizes are available?▾
What seal and body materials are available?▾
What port thread options are available?▾
Does this coupling connect under pressure?▾
Will this replace the coupling already on my machine?▾
What is the typical lead time?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- Schnellkupplung
- fr
- raccord rapide
- es
- acoplamiento rápido
- it
- innesto rapido
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