Contact : +91-79045 61980 | Email: hydrofitengineers@gmail.com
Hydraulic Quick Release Couplings
Trusted local manufacturer and supplier of quick release couplings
Our quick release couplings are not just products, they’re tools that help you save time, reduce fluid loss, and improve workplace safety. At Hydrofit Engineers, we’ve been helping industries across Chennai – from Ambattur Industrial Estate to Oragadam’s automotive hubs – with reliable hydraulic solutions including hydraulic fittings products for more than a decade.
Our Range of Hydraulic Quick Release Couplings
We don’t believe in – one size fits all. Every sector has its own challenges and our QRCs / QDC are designed to meet those exact needs:
- Quick Release Hydraulic Couplings (QRCs) – Rugged and tested for Chennai’s demanding industrial environments.
- Single & Double Check Valve QRCs – Prevent backflow and ensure leak-free performance.
- Flat Face Couplers – Ideal for industries like pharma and food processing where cleanliness is key.
- Agricultural Hydraulic Couplers – Built tough for farms around Kanchipuram, Chengalpattu, and nearby districts.
- QR Couplers – Compact connectors for machinery where speed of connection matters.
Many of our clients in Sriperumbudur’s manufacturing belt use our flat face couplers to reduce oil spillage and improve safety compliance.
Hydraulic Quick Release Couplings are used for high pressure applications in the pressure range of 150 bar to 400 bars and are generally Double Check Valve type design. There are different types of Hydraulic Quick Release Couplings :
Types of Hydraulic Quick Release Couplings
ISO 7241 A Quick Release Coupling
These are high pressure Double Check Valve Quick Release Couplings. These are Poppet Double Check Valve Type having check valves at both Coupler and Adaptor ends. This type is generally used in :
Agriculture equipment (tractors, harvesters)
Construction machinery
Mobile hydraulics
Hydraulic power packs
Industrial hydraulic systems
General-purpose hydraulic connections
These are used in the above applications because, they are :
Robust
Easy to connect
Widely available globally
Good for general hydraulic oil applications
ISO 7241 B Quick Release Coupling
The ISO 7241 B QRC Couplings are also high pressure Double Check Valve Quick Couplings. These are also Poppet Valve type having check valves at both Coupler and Adaptor ends. These are used in :
Industrial hydraulic systems
Machine tools
Test benches
- Hydraulic Manifolds and Test Rigs
Hydraulic power units
Industrial automation systems
Injection molding machines
These are used in the above areas because they are :
Often offers slightly better sealing than A type
More popular in industrial OEM equipment
Good for repeated connect/disconnect cycles
ISO 16028 Flat Face Quick Release Couplings
This is a Hydraulic Quick Disconnect Coupling that conforms to ISO 16028 international standards. These couplings are designed to provide leak-free, contamination-free, and high-performance connections in demanding hydraulic applications. Unlike the Poppet type Quick Couplers these couplings have a Flat Mating Surface between the Female Coupler and Male Adaptor ends. This flat face design give major advantages such as :
Extremely low oil spillage during disconnection
Minimal air inclusion during reconnection
Easy cleaning of the coupling face
Better system cleanliness and longer component life
Key Features of 16028 Flat Face Quick Couplings
- The flat face design results in minimum fluid loss
- The double check valve design offers maximum safety
- These can work under high pressures between 250 to 450 bars
- They give maximum protection to the fluid against contamination
- The surface is easy to clean and ideal for outdoor applications
- The locking mechanism is Push to Connect type
- All brands coming under the ISO 16028 standards are interchangeable
Where are ISO 16028 QRC Couplings used ?
These couplings are generally used where prevention of leakage and cleanliness of the fluid is of utmost importance. These are commonly used in :
Excavators and earthmoving equipment
Construction machinery
Mining equipment
Forestry machinery
Agricultural machinery
Mobile hydraulic systems
Hydraulic attachments and tool changers
Oil & gas equipment
High-end industrial machines
Test benches and hydraulic rigs
Advantages of Flat Face ISO 16028 Quick Release Couplings over other coupling standards
Compared to conventional ISO 7241 A or B type couplings, ISO 16028 offers several advantages:
| Feature | ISO 16028 Flat Face |
|---|---|
| Oil spillage | Extremely low |
| Air inclusion | Very minimal |
| Ease of cleaning | Excellent (flat surface) |
| Suitability for dirty environments | Very high |
| System cleanliness | Maintained |
| Environmental friendliness | High |
| Safety during disconnection | Excellent |
Technical Specifications – ISO 16028 Flat Face QRC
| Parameter | Specification |
|---|---|
| Standard | ISO 16028 |
| Type | Flat Face Quick Release Coupling |
| Valve Design | Double Shut-Off (Double Check Valve) |
| Working Pressure | 250 – 450 bar (size dependent) |
| Burst Pressure | Typically 4x working pressure |
| Sizes Available | ¼”, ⅜”, ½”, ¾”, 1″ |
| Connection Threads | BSP, NPT, Metric |
| Material (Body) | Carbon Steel (Zinc Plated), Stainless Steel |
| Seal Material | NBR (standard), Viton / EPDM optional |
| Operating Temperature | -20°C to +120°C (seal dependent) |
| Connection Mechanism | Push-to-connect |
| Disconnection Under Pressure | Not recommended (safety feature) |
| Typical Fluids | Hydraulic oil, mineral oil, compatible fluids |
ISO 16028 vs ISO 7241 A vs ISO 7241 B Quick Release Couplings
| Feature | ISO 7241 A | ISO 7241 B | ISO 16028 |
|---|---|---|---|
| Face Design | Poppet | Poppet | Flat Face |
| Oil Spillage on Disconnect | Moderate | Moderate | Very Low |
| Air Inclusion on Reconnect | Moderate | Moderate | Very Low |
| Cleanliness | Average | Good | Excellent |
| Typical Applications | Agriculture, mobile hydraulics | Industrial machinery, test rigs | Excavators, mining, mobile equipment |
| Pressure Rating | 200–350 bar | 250–420 bar | 250–450 bar |
| Valve Type | Double shut-off | Double shut-off | Double shut-off |
| Ease of Cleaning | Average | Average | Excellent (flat surface) |
| Environmental Safety | Moderate | Moderate | Very High |
| Cost | Lower | Medium | Higher (premium performance) |
| Preferred For | General purpose | Industrial systems | Zero leakage, high cleanliness systems |
Hydraulic Products Serving in Chennai & Surrounding Areas
We’re not just another supplier shipping products from somewhere far away. We’re based in Chennai, which means:
- Fast delivery across Chennai, Sriperumbudur, Ambattur, Tambaram & Oragadam
- On-site support when you need it most
- Easy communication with a local team who understands your industry
So, when you search for quick release coupling near me or other hydraulic pipe tube clamps that help secure pipelines, we are right here in your neighborhood.
Your Local Hydraulic Quick Connect Couplings Partner
If you work with hydraulics products in Chennai, you know how important it is to keep downtime low and systems leak-free. That’s where Quick Release Couplings (QRCs) make a big difference.
Choosing Hydrofit Engineers gives you the confidence of working with specialists:
- In-house manufacturing ensures consistent quality
- Custom designs for agriculture, construction & heavy machinery
- Chennai-based support team for after-sales service
- Trusted by both SMEs and large-scale industries in Tamil Nadu
If you are new in hydraulic, here’s a quick guide on the basics of hydraulic systems to understand how couplings play a role in fluid power.
With decades of expertise in hydraulics, Hydrofit Engineers have earned the trust of industries across Chennai and Tamil Nadu, delivering not just products but long-term reliability and local support.
Hydrofit Engineers, deals with a complete range of Pneumatic quick release coupler including hydraulic gear pumps that ensure consistent flow in industrial hydraulic systems.
We also supply high pressure hydraulic hoses to handle demanding pressure applications in construction and farming equipment.
What our Chennai clients say
"We run a factory in Ambattur and were struggling with frequent oil leaks. Hydrofit’s quick release couplings solved the issue and their local team visited us to make sure everything fit perfectly.”
Factory Manager
Ambattur
"We’ve been sourcing quick release couplings from Hydrofit Engineers for years. Their products are durable and their local service in Chennai is unmatched”
Industrial Client
Oragadam
"On our farm near Chengalpattu, downtime during harvest season is costly. Hydrofit’s agricultural hydraulic couplers have made our work much more reliable."
Farmer
Chengalpattu
FAQs
1. What are Quick Release Couplings (QRCs) used for?
Quick Release Couplings are hydraulic connectors used for fast and leak-free connection/disconnection of fluid lines without tools. They are often designed to meet global guidelines such as the SAE J516 hydraulic hose fittings standard, which ensures safe, reliable, and consistent performance across hydraulic systems.
2.Do you supply quick disconnect couplings/QDC in Chennai?
Yes, we are a local manufacturer and supplier who supplies all type of quick couplers, oil line quick couplings, air line fit couplings to industries across Chennai.
3. Which industries uses your hydraulic couplers?
Our couplings/fittings are widely used in construction, manufacturing, agriculture, automotive, and heavy machinery.
4. What if we required customized Quick connect couplings?
Yes, we manufacture custom-designed quick release couplings based on your requirement of size, material, and pressure requirements.
5. Why choose Hydrofit Engineers over other suppliers?
Because we’re local to Chennai and we offer direct manufacturer pricing, ensures quality assurance too.