QUICK RELEASE COUPLING(QRC) fITTINGS
FLAT TYPE
APPLICATION
SPECIFICATIONS
| Body Size(in)(BSP) | 1/4 | 3/8 | 1/2 | 3/4 | 1 |
|---|---|---|---|---|---|
|
Rated Pressure(bar) |
345 |
300 |
300 |
250 |
210 |
|
Rated Flow(LPM) |
11 |
22 |
45 |
105 |
189 |
|
Temperature Range(Std seals) |
-20 to +120 C |
||||
|
Standard Seal Material is |
NBR |
FEATURES
- Sleeve locking mechanism is engaged by rotating sleeve after connection.
- Steel construction new chrome plating treatment provides advanced anti-rust performance
- Durable ball-locking mechanism assures reliable connections, every time.
- This series conforms to standard of ISO 16028.
- Compatible with PARKER FEM Series, STUCCHI FIRG Series, AEROQUIP FD89 Series and HANSEN FF Series.
BALL TYPE
APPLICATION
This series brings to the industry a proven design for use on industrial construction equipment, forestry equipment, agricultural machinery, oil tools, oil equipment stee mill machinery and other demanding hydraulic applications.
SPECIFICATIONS
| Body Size(in)(BSP) | 1/4 | 3/8 | 1/2 | 3/4 | 1 |
|---|---|---|---|---|---|
|
Rated Pressure(bar) |
345 |
300 |
300 |
250 |
210 |
|
Rated Flow(LPM) |
11 |
22 |
45 |
105 |
189 |
|
Temperature Range(Std seals) |
-20 to +120 C |
||||
|
Standard Seal Material is |
NBR |
FEATURES
- Poppet valve available to prevent uncoupled leakage.
- Poppet valves open automatically when coupled, within rated working pressure to keep the flow expeditely.
- Dependable ball-locking mechanism holds the mating halves together.
- This series conforms to the standard ISO 7241-A.
- Compatible with PARKER 6600 Series, FASTER ANV Series, AEROQUIP 5600 Series and HANSEN HA 15000 Series.
POPPET TYPE-THREADED
APPLICATION
This series couplings with their threaded union locking system and precision ball-type check valves are designed for extreme high pressure applications such as portable hydraulic jacks.
SPECIFICATIONS
| Body Size(in)(NPT) | 3/8 |
|---|---|
|
Rated Pressure(bar) |
700 |
|
Rated Flow(LPM) |
22 |
|
Temperature Range(Std seals) |
-20 to +120 C |
|
Standard Seal Material is |
NBR |
FEATURES
- This series employs a threaded sleeve locking mechanism, mates with matching male threads on the nipple. The two halves must be manual
- Hard chrome alloy balls are used for valving. They are spring loaded for positive seating for the valve.
- The valve provides a metal to metal seal between the ball and coined seat.
- The interface seal is polyurethane which resists high pressure extrusion.
- Compatible with PARKER 3000 Series and FASTER PVVM Series.
SCREW TYPE
APPLICATION
SPECIFICATIONS
| Body Size(in)(BSP & NPT) | 1/4 | 3/8 |
|---|---|---|
|
Rated Pressure(bar) |
700 |
700 |
|
Rated Flow(LPM) |
8 |
17 |
|
Temperature Range(Std seals) |
-20 to +120 C |
|
|
Standard Seal Material is |
NBR |
FEATURES
- This series employs a threaded sleeve locking mechanism, mates with matching male threads on the nipple. The two halves must be manually threaded together form c
- New chrome plating treatment provides advanced anti-rust performance.
- Compatible with FASTER VVS Series.
Ready to experience the best in QRC FITTINGS?
FAQ
1. What is a QRC (Quick Release Coupling) and how do Polyfit QRC fittings work?
Polyfit QRCs allow fast, tool-less connection and disconnection of fluid or air lines. The coupler and plug lock together automatically when pushed, and internal valves enable safe flow control. When disconnected, the valve closes to prevent leaks and fluid loss.
2. Are Polyfit QRC fittings compatible with international-standard couplings?
Yes. Polyfit QRCs are manufactured according to established international profiles. This ensures compatibility with most globally recognized QRC brands, including those following Parker-equivalent standards — provided size, thread type and series match.
3.What applications are Polyfit QRC fittings suitable for?
Polyfit QRCs are used across multiple industries, typically in:
Hydraulic systems
Pneumatic lines
Oil & coolant transfer
Industrial machinery
Molding machines
Construction & agricultural equipment
Their quick-connect design reduces downtime and increases safety during maintenance and fluid changeovers.
4.What plating is done on these QRC fittings?
These QRC fittings comes with new chrome plating treatment that provides advanced anti-rust performance.
5. What are the different types of QRC fittings that Polyfit Manufactures?
- Flat Type QRC Couplings – Used for quick change of Hydraulic tools in Construction/Railway Maintenance, Mining Industries
- Poppet Type(Threaded) – With Threaded union locking system and precision ball-type check valves designed for extreme pressure applications
- Screw Type – Threaded sleeve locking mechanism used in mobile equipment, agriculture and universe industrial equipments.
More Info
Quick Release Coupling(QRC) Fittings for Robust Applications
Polyfit is a well-established manufacturer of hydraulic fittings, hose assemblies, and related fluid-transfer components. Founded in Chennai and backed by decades of experience, Polyfit operates multiple ISO-certified production units, delivering precision-engineered components for industries including oil & gas, mining, agriculture, railways, and heavy machinery.
Their broad product portfolio includes threaded fittings (BSP, NPT, JIC, Metric), ferrules for various hose types, high-pressure hose assemblies, and quick-action couplings — ensuring customers can build robust, leak-free hydraulic systems tailored to their specific requirements.
Within this portfolio, Polyfit’s QRC fittings stand out for combining reliability with versatility. Their QRC range — including Flat Type, Ball Type, Poppet-Type (threaded), and Screw-Type couplings — caters to a wide array of applications such as construction equipment, hydraulic tools, agriculture machinery, mining, and mobile equipment. Polyfit Fabricators Pvt Ltd These couplings offer high rated pressures (up to 345 bar for smaller BSP sizes, and even 700 bar for certain threaded types), solid flow capacities, and robust sealing (standard NBR seals, with options for other materials or special requirements). With features like sleeve-locking mechanisms, chrome-plated anti-rust steel bodies, and ball-locking or poppet-valve systems, Polyfit QRCs are built to deliver quick, secure, and leak-resistant connections — making them suitable for heavy-duty hydraulic and fluid-handling systems
