Dual-Interlock Stainless Coolant Coupler
Full-flow dual-interlock stainless steel coupler with identical halves — engineered for electronics liquid cooling and thermal-management systems. Dual interlock prevents accidental opening when disconnected and prevents disconnect with valves open.
Key features
- Series: QC-CL
- Application Class: Specialty
- Valving: Valved (Self-sealing Poppet)
- Connection Method: Push-Pull Ball Latch
- Maximum Operating Pressure: 10 bar
- Series
- QC-CL
- Application Class
- Specialty
- Valving
- Valved (Self-sealing Poppet)
- Available Body Sizes
- 3/4", 1"
- Connection Method
- Push-Pull Ball Latch
- Flush Face / No-Spill
- no
Product description
The Dual-Interlock Stainless Coolant Coupler is a specialty quick-disconnect coupling in the Indus QC-CL range. Full-flow dual-interlock stainless steel coupler with identical halves — engineered for electronics liquid cooling and thermal-management systems. Dual interlock prevents accidental opening when disconnected and prevents disconnect with valves open.
Working pressure to 10 bar (145 psi) at the smallest body size, with minimum burst pressure of 20 bar. Push-Pull Ball Latch connection — valved (self-sealing poppet) variant.
Construction & features
- Connection method: Push-Pull Ball Latch
- Valving: Valved (Self-sealing Poppet)
- Interchanges with: Specialty electronics-cooling couplers, Eaton FD83
Available variants — specify in your RFQ
Indus supplies the full QC-CL range. Specify the configuration that matches your hose end and operating envelope and we will quote against it.
- Coupling halves: Identical halves (no male/female distinction) — single SKU
- Body sizes: 3/4", 1"
- Body materials: 303 Stainless Steel (other materials on request)
- Seal materials: EPDM (other materials on request)
- Port thread types: Female NPT, Hose Barb
Performance
- Maximum operating pressure: 10 bar (145 psi) at the smallest size; derates with diameter
- Minimum burst pressure: 20 bar (290 psi)
- Rated flow (largest size): up to 200 L/min
- Vacuum rating: 28 in./Hg
- Operating temperature range: -40°C to +150°C (varies by seal compound; specify in RFQ)
Replacing an existing coupling?
This coupler is dimensionally interchangeable with Eaton FD83, and with Specialty electronics-cooling couplers. 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-CL |
| Application Class | Specialty |
| Valving | Valved (Self-sealing Poppet) |
Variants
| Parameter | Value |
|---|---|
| Available Body Sizes | 3/4", 1" |
| Available Body Materials | 303 Stainless Steel (other materials on request) |
| Available Seal Materials | EPDM (other materials on request) |
| Available Port Thread Types | Female NPT, Hose Barb |
| Available Coupling Halves | Identical halves (no male/female distinction) — single SKU |
Construction
| Parameter | Value |
|---|---|
| Connection Method | Push-Pull Ball Latch |
| Flush Face / No-Spill | no |
| Connect Under Pressure | no |
Performance
| Parameter | Value |
|---|---|
| Maximum Operating Pressure | 10 bar |
| Minimum Burst Pressure | 20 bar |
| Rated Flow (Largest Size) | 200 L/min |
| Vacuum Rating | 28 in./Hg |
| Operating Temperature Min | -40 °C |
| Operating Temperature Max | 150 °C |
Compliance
| Parameter | Value |
|---|---|
| Interchanges With (Competitor Brands) | Specialty electronics-cooling couplers, Eaton FD83 |
Shipping & lead time
What is the Indus QC-CL 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
From the blog
Written about this range
Safety & HSE
Trapped pressure: why the coupler will not connect, and how to release it safely
An attachment left in the sun all morning can build enough pressure in a disconnected line to make a coupler impossible to push home. Forcing it is the part that hurts people.
5 min read
Failure analysis
What splits a female coupler half
A cracked female coupler body is not a manufacturing defect and it is not bad luck. It is almost always one of three things, and two of them are avoidable for nothing.
4 min read
Machine down
Tractors and implements: the couplers are older than the machine
Agricultural hydraulics run on a coupler standard that has barely changed in decades, which is why a 1990s implement still connects to a new tractor — and why grit gets into everything.
3 min read
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