Quick Release Coupling (ISO 7241-B Series)
HTS Quick Release Couplings are precision-engineered in compliance with ISO 7241-B, ensuring reliable performance and full interchangeability with globally accepted ISO B profile couplings. Designed to meet the requirements of international hydraulic systems, these couplings are widely used in OEM and industrial applications, particularly in North American markets. Manufactured using advanced automated machinery, each coupling is produced with high dimensional accuracy, consistency, and repeatability. All manufacturing, assembly, and testing processes are carried out under strict quality control systems to meet international performance standards. Every coupling undergoes 100% inspection and functional testing, ensuring leak-proof performance, operational safety, and durability under demanding working conditions. With strong expertise in bulk manufacturing, HTS offers flexible production in multiple materials including carbon steel, stainless steel, and brass, making the couplings suitable for a wide range of industrial and hydraulic applications worldwide.
- Application
- Description
- Specification
- Key Feature
- Temperature Chart
- How To Order
- Ordering Format
Quick Release Couplings conforming to ISO 7241-B are widely used in industrial and hydraulic systems where reliable, leak-free connection and disconnection of fluid lines is essential. These couplings are particularly suited for OEM equipment, industrial machinery, process systems, and mobile hydraulic applications, especially in markets following ISO B interchange standards. Their robust construction and precision design ensure safe operation in applications involving pumps, cylinders, and hydraulic circuits, delivering consistent performance, reduced downtime, and improved operational efficiency in demanding global environments.
| Size (Inch) | DN (mm) | Working Pressure (bar) | Working Pressure (PSI) |
| 1/4” | 6 mm | 350 bar | 5075 PSI |
| 3/8” | 10 mm | 330 bar | 4785 PSI |
| 1/2” | 12 mm | 300 bar | 4350 PSI |
| 3/4” | 20 mm | 250 bar | 3625 PSI |
| 1” | 25 mm | 220 bar | 3190 PSI |
| 1-1/4” | 32 mm | 180 bar | 2610 PSI |
| 1-1/2” | 40 mm | 150 bar | 2175 PSI |
| 2” | 50 mm | 120 bar | 1740 PSI |
- Standard Compliance: ISO 7241-B
- Type: Ball Locking Quick Release Coupling
- Connection Type: Push-to-connect / Pull-back sleeve disconnect
- Valve Type: Poppet Valve (Double Shut-Off)
- Interchangeability: Compatible with all ISO 7241-B profile couplings
- Nominal Sizes: 1/4” to 2” (DN 6 to DN 50)
- End connections: BSPP, BSPT, NPT, SAE, Metric threads, Hose ends (We can also make special threads on demand)
- Working Pressure: Up to 350 bar (depending on size & material)
- Burst Pressure: Up to 4 times working pressure
- Materials of Construction: Carbon Steel / Stainless Steel / Brass
- Surface Finish: Zinc Plated / Cr3 / Nickel Plated / Electroless Nickel Plated / Passivated / Cadmium Coating / Custom Coating
- Seals: Viton, NBR, FKM, CR, Si, EPDM
- Flow Medium: Hydraulic oil, water, glycol, and compatible fluids
1. Manufactured in compliance with ISO 7241-B for reliable global interchangeability
2. Precision-machined components ensuring high dimensional accuracy and consistent performance
3. Produced on advanced automatic machinery for repeatability and quality consistency
4. 100% inspection and functional testing for assured reliability
5. Leak-proof sealing design to minimize fluid loss and contamination
6. Secure locking mechanism for safe and vibration-resistant connections
7. Self-sealing valves to prevent spillage during disconnection
8. Designed for high-pressure hydraulic and industrial applications
9. Robust and compact design suitable for space-constrained installations
10. Available in multiple materials including carbon steel, stainless steel, and brass
11. Suitable for bulk production with consistent quality standards
12. Long service life with minimal maintenance requirements
| Seal Material | Abbreviation | Temperature Range (°C) | Temperature Range (°F) | |
| Nitrile Rubber | NBR | -20°C to +100°C | -4°F to +212°F | |
| Fluorocarbon | FKM (Viton) | -15°C to +200°C | +5°F to +392°F | |
| Neoprene | CR | -20°C to +120°C | -4°F to +248°F | |
| Silicone | Si | -60°C to +200°C | -76°F to +392°F | |
| Fluorocarbon | Viton | -15°C to +200°C | +5°F to +392°F | |
| Note: Temperature ranges may vary based on: Fluid compatibility, Pressure conditions, Compound grade | ||||
1. Choose your size
2. Choose your seals and material (if you don't know please share pressure and temperature)
3. Choose your material (if you don't know please share your application)
4. Choose end connections (thread type)
HTS – QRC – [Series] – [Size] – [Material] – [Thread Type] – [Seal] – [Options]
Example:
HTS-QRC-B-12-CS-BSP-NBR
(ISO B Series, 1/2” Size, Carbon Steel, BSP Thread, NBR Seal)
