Cixi Poolke Hydraulic Pneumatic Co., Ltd. is one of the leading manufacturers and suppliers of 550 pneumatic quick couplings in China. We are committed to providing high quality customized service to global clients. Please feel free to wholesale the newest 550 pneumatic quick couplings from our factory.
ISO B12 Standard Pneumatic Quick Couplings – 550 Series
The 550 Pneumatic quick couplings from the POOLKE 550 Series are designed for compressed-air systems requiring very high airflow, secure connection and reliable performance in demanding industrial environments. With a nominal flow diameter of 11.5 mm and flow capacity up to 3750 L/min, this series is particularly suitable for pneumatic equipment with large air consumption and applications where reducing pressure loss is important.
The 550 Series combines one-hand operation with a robust metal construction to provide fast connection and dependable service during frequent coupling cycles. Its high-flow internal design supports efficient air delivery, while the durable socket and plug structure helps maintain stable performance in workshops, production lines and heavy-duty pneumatic systems. The 550 Pneumatic quick couplings are also available with multiple threaded and hose connection options for flexible installation across different compressed-air networks.
Key Features
Extra High Flow Capacity
Provides airflow up to 3750 L/min with an 11.5 mm nominal flow diameter, making it suitable for pneumatic systems with high air demand.
Low Pressure Loss
The large internal flow path helps minimize flow restriction and supports efficient compressed-air delivery to downstream equipment.
One-Hand Operation
Designed for convenient one-hand coupling and uncoupling, helping improve productivity in frequently operated pneumatic lines.
Durable Industrial Construction
Metal socket and plug components provide reliable wear resistance and long service life under repeated connection cycles.
Secure Locking Performance
The coupling mechanism maintains stable engagement during operation and provides dependable connection for industrial compressed-air systems.
Multiple Connection Options
Available with male threads, female threads and hose barb connections for flexible integration into different pneumatic installations.
Applications
The 550 Pneumatic quick couplings are suitable for:
- High-flow compressed-air systems
- Heavy-duty pneumatic tools
- Industrial air compressors
- Manufacturing equipment
- Factory production lines
- Large pneumatic machinery
Technical Overview
| Series | 550 | Max. Working Pressure | 35 Bar |
| Type | ISO B12 Standard Pneumatic Quick Couplings | Operation | One-Hand Operated |
| Nominal Flow Diameter | 11.5 mm | Connection Options | Male / Female / Hose Barb |
| Flow Capacity | 3750 L/min | Temperature Range | -20°C to +100°C |
Interchangeability
Cross-reference examples include:
- ISO B12 Standard Profile
- ISO 6150-B 1/2 Profile
- Compatible Industrial Pneumatic Coupling Systems
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